Temat: Secondary metabolites - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An improved method for RNA isolation from plants using commercial extraction kits
Autorzy:: Kalinowska, Elżbieta
Chodorska, Maria
Paduch-Cichal, Elżbieta
Mroczkowska, Karolina
Powiązania:: https://bibliotekanauki.pl/articles/1039717.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: total RNA
secondary metabolites
Opis:: Isolation of RNA from plants rich in secondary metabolites using commercial kits often results in contaminated preparations which are not suitable for downstream applications. Although many specific protocols appropriate for plants with a high content of phenolics, anthocyanins and polysaccharides have been developed, these are often expensive, time consuming and not applicable to different types of tissues. This study presents a simple and efficient modification of RNA extraction from different types of tissues using two commercial reagent kits. By simple improvement, we routinely obtained high-quality RNA of the following plants: the blackcurrant bush, black chokeberry bush, pear tree, apricot tree, apple tree, hardy kiwi, tangerine tree, highbush blueberry and cranberry plant.
Źródło:: Acta Biochimica Polonica; 2012, 59, 3; 391-393
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Revealing and vetting of dynamic secondary metabolites position for isolation of antidermatophytic molecules from 20 aboriginal plants
Autorzy:: Singh, P. Shivakumar
Vidyasagar, G. M.
Powiązania:: https://bibliotekanauki.pl/articles/1076129.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Aboriginal plants
antidermatophytic
dynamic secondary metabolites
phytochemical locations
vetting of secondary metabolites
Opis:: Aboriginal plants and their information clubbed with their potentiality. Majority of the secondary metabolites are the basic therapeutics. Usually these establishes in higher plants are gratifying all the time more noteworthy in drug scheming. In the current report, 100 different solvent extracts of 20 aboriginal plant species from Hyderabad Karnataka region were screened for their leading constituents of secondary metabolites. As of each one of plant species particular part of five successive extracts were particular for the revealing of impending metabolites. Intended for the vetting of secondary metabolites the criterion tests undertaken i.e., cluster wise for alkaloids dragendroff’s, tannin for ferric chloride, phenolics for lead acetate, glycoside for keller-killiani test, flavonoids for NaOH and saponins for foam test. The obvious ranges of secondary metabolites in the vein of non-polar to polar have been pragmatic. The utmost detection of alkaloids, tannins established at non-polar range whereas in middle polar flavonoids, tannins have been noticed. Glycosides and saponins entirely found at high polar. The upshot of the in attendance report will be very much constructive for isolation of diverse group of resulting metabolites in accumulate the time, chemicals, vigour utilization in active fragment drug design.
Źródło:: World Scientific News; 2019, 116; 25-35
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Spectral fingerprinting revealed modulation of plant secondary metabolites in providing abiotic stress tolerance to invasive alien plants Lantana camara (L.), Parthenium hysterophorous (L.), Ricinus communis (L.), and Ageratum conyzoides (L.) (plant metabolites in stress tolerance to invasive plants)
Autorzy:: Sharma, A.D.
Kaur, J.
Chand, T.S.P.
Powiązania:: https://bibliotekanauki.pl/articles/2096781.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: chemical fingerprinting
invasiveness
lipid peroxidation
secondary metabolites
Opis:: Invasive alien species are non-native plant species that displace native species and pose adverse effects to environment, ecosystem, economy, and human health by diminishing the growth of native plants and by exhibiting higher stress tolerance. In our present study, four invasive alien species, namely Lantana camara, Parthenium hysterophorous, Ricinus communis, and Ageratum conyzoides, were studied from different locations. Plants growing under natural environmental conditions were sampled at random in the vicinity of Jalandhar. To gain insights into the biochemical basis of invasiveness of these plants, the samples were subjected to chemical fingerprinting by using UV-Vis, fluorescent, and Fourier transform-infrared (FT-IR) techniques under natural abiotic stress conditions (moderate and hot conditions). Indices of oxidative stress, such as malondialdehyde (MDA), were also studied. MDA levels were enhanced under hot conditions. Elevated peaks (major and minor) were observed in UV fingerprinting during adverse abiotic conditions. Fluorescent spectroscopy also validated the enhanced levels of secondary metabolites. FT-IR spectroscopy confirmed the presence of alkaloids and phenolics during stress conditions. Peaks were identified as rutin, vanillic acid, ascorbic acid, and glutathione reduced. The obtained results showed that under stressful conditions, the studied plants may produce an increased level of metabolites that might play a role in minimizing the oxidative stress faced by these plants. It was concluded that the studied plants, namely P. hysterophorus, L. camara, R. communis, and A. conyzoides, have the potential to cope with abiotic stress such as high temperature, which could be the reason for their invasiveness and vast adaptability.
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 3; 307-319
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Plant secondary metabolites as defenses: A review
Autorzy:: Jusuf, Herlina
Elveny, Marischa
Azizova, Feruza
Shichiyakh, Rustem A.
Kulikov, Dmitriy
Al-Taee, Muataz M.
Atiyah, Karrar K.
Jalil, Abduladheem T.
Aravindhan, Surendar
Powiązania:: https://bibliotekanauki.pl/articles/2174280.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: alkaloids
flavonoids
phenolics
plant pathogens
secondary metabolites
Opis:: Plant secondary metabolites have a variety of functions, including mediating relationships between organisms, responding to environmental challenges, and protecting plants against infections, pests, and herbivores. In a similar way, through controlling plant metabolism, plant microbiomes take part in many of the aforementioned processes indirectly or directly. Researchers have discovered that plants may affect their microbiome by secreting a variety of metabolites, and that the microbiome could likewise affect the metabolome of the host plant. Pesticides are agrochemicals that are employed to safeguard humans and plants from numerous illnesses in urban green zones, public health initiatives, and agricultural fields. The careless use of chemical pesticides is destroying our ecology. As a result, it is necessary to investigate environmentally benign alternatives to pathogen management, such as plant-based metabolites. According to literature, plant metabolites have been shown to have the ability to battle plant pathogens. Phenolics, flavonoids, and alkaloids are a few of the secondary metabolites of plants that have been covered in this study.
Źródło:: Journal of Water and Land Development; 2022, 55; 206--211
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Impact of Water Stress and Temperature on Metabolites and Essential Oil of Rosmarinus officinalis (Phytochemical Screening, Extraction, and Gas Chromatography)
Autorzy:: Laftouhi, Abdelouahid
Eloutassi, Noureddine
Drioua, Soufiane
Ech-Chihbi, Elhachmia
Rais, Zakia
Abdellaoui, Abdelfattah
Taleb, Abdslam
Beniken, Mustapha
Taleb, Mustapha
Powiązania:: https://bibliotekanauki.pl/articles/24201782.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: climate change
primary metabolites
secondary metabolites
essential oil yield
Rosmarinus officinalis
Opis:: Currently, climate change is disrupting life on Earth by causing imbalances in the biosphere. This work aimed to evaluate the impact of climate change on the content of primary and secondary metabolites and the yield of essential oil of Rosmarinus officinalis. Thus, the results of the conducted experiment show that the content of primary metabolites decreased with increasing temperature and decreasing precipitation along the experiment(proteins from 7.61% to 7.14%, carbohydrates from 6.92% to 5.64%, fats from 1.48% to 1.29% and dietary fiber from 4.96% to 4.22% and mineral composition: Ca from 7.67% to 5.98%, Mg from 8.61% to 7.01%, Fe from 7.53% to 7.21% and Mn from 6.85% to 3.97%), and the content of secondary metabolites increased in the second year when increasing the temperature by 5 °C and water stress by 50% (coumarin from 6.59% to 10.99%, saponins from 7.15% to 8.46%, tannin from 3.92% to 5.95%, alkaloids from 6.69% to 15.62% and flavonoid from 8.02% to 15.75%),but in the fourth year when the temperature continued to increase and water stress was 75% the content of secondary metabolites decreased (coumarin from 10.99% to 8.27%, saponins from 8.46% to 7.87%, tannin from 5.95% to 4.85%, alkaloids from 15.62% to 10.68% and flavonoid from 15.75% to 11.36%)and the same results were obtained for the yield of essential oil which increased in the second year and decreased in the fourth year. This GC analysis of the three essential oil samples shows that the majority of compounds in the three essential oils studied are cineole (S1:45.98%, S2:55.36%, S3:43.08%) followed by camphor (S1:17.44%, S2:21.44%, S3:21.56%) and Alpha-pinene (S1:9.30%, S2:8.34%, S3: 9.17%) and other compounds in low percentage.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 237--248
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Total phenolic, flavonoid content and antioxidant capacity of stem bark, root, and leaves methanolic extract of Rhizophora mucronata Lam.
Autorzy:: Mulyani, Yeni
Syaputra, Nabil Dio
Dewi, Khoirunisa Candra
Lili, Walim
Agung, M. Untung Kurnia
Powiązania:: https://bibliotekanauki.pl/articles/1076655.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Antioxidant
Flavonoid
Indramayu Regency
Phenolic
Rhizophora mucronata
Secondary metabolites
Opis:: The study was carried out to evaluate the phytochemical constituents, antioxidant activity and the content of total phenolic and flavonoid in the methanolic extract from stem bark, root, and leaves of Rhizophora mucronata from Karangsong, Indramayu Regency, West Java, Indonesia. The antioxidant activity was evaluated using 2,2-diphenyl-1-picrilhydrazyl (DPPH) assay. Total phenolic and flavonoid contents were determined according respectively to Folin-Ciocalteau method, and aluminium trichloride method. The methanol extract from stem bark of R. mucronata contained secondary metabolite such as phenolic, flavonoid, tannin and saponin. The stem bark of R. mucronata showed the highest phenolic and flavonoid content and possessed a higher antioxidant activity (IC50 84.80 µg·m/L) than that of root (IC50 166.95 µg·m/L) and leaves (IC50 90.51 µgmL1). Total phenolic and flavonoid content in the stem bark of R. mucronata were 131.91 ±1.7 mg gallic acid equivalents/g and 902 ±0.7 mg quercetin equivalents/g, respectively.
Źródło:: World News of Natural Sciences; 2019, 26; 118-127
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Betaxanthin Profiling in Beta vulgaris Leaves and Gymnocalycium mihanovichii Grafted Cacti: A Comprehensive Study
Autorzy:: Spórna-Kucab, Aneta
Tekieli, Anna
Knapek, Magdalena
Zużałek, Marta
Wybraniec, Sławomir
Powiązania:: https://bibliotekanauki.pl/articles/24024625.pdf
Data publikacji:: 2023-12-05
Wydawca:: Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:: beet
betalains
colorants
grafted cactus
LC-MS
secondary metabolites
Opis:: This study was focused on the identification and quantification of betaxanthins using high-performance liquid chromatography with a diode array detector coupled to electrospray ionisation mass spectrometry (HPLC-DAD-ESI-MS) in leaves of various cultivars of Beta vulgaris (beet) and Gymnocalycium mihanovichii grafted cacti. In G. mihanovichii grafted cacti, four betaxanthins, namely histidine-Bx, histamine-Bx, serine-Bx, and proline-Bx, were tentatively identified in the yellow, orange, pink, and red varieties, with contents ranging from 0.09 to 1.55 mg/kg fresh weight (FW). Betaxanthins were not detected in the green cactus. Histidine-Bx was the prevailing betaxanthin compound in the majority of cultivars. Fifteen betaxanthins were successfully identified in the leaves of five B. vulgaris cultivars (cv.): Snow Ball, Boldor, Cylindra, Rhubarb, and Round Dark Red. Leaves of yellow beet (cv. Boldor) had the highest total betaxanthin content (20.4 mg/kg FW), while white beet (cv. Snow Ball) had the lowest one (3.43 mg/kg FW). The leaves of red cultivars had comparable betaxanthin contents, ranging from 13.4 to 18.8 mg/kg FW, similary to the yellow cultivar, indicating their potential as valuable sources of betaxanthins. There was no single dominant betaxanthin in B. vulgaris leaves. The leaves of B. vulgaris were found to be a richer source of betaxanthin than the grafted cactus G. mihanovichii, which opens up new prospects for research into the potential utilization of these compounds in the industry.
Źródło:: Polish Journal of Food and Nutrition Sciences; 2023, 73, 4; 375-384
1230-0322
2083-6007
Pojawia się w:: Polish Journal of Food and Nutrition Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The evaluation of the in-vitro antimicrobial activity of Alangium salvifolium (Linn)
Autorzy:: Khan, Mohammad Nadeem
Powiązania:: https://bibliotekanauki.pl/articles/1109620.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Alangium salvifolium
Antimicrobial activity
disc diffusion
secondary metabolites
soxhelt apparatus
Opis:: Finding healing power in plants is an ancient idea, and people of all continents and civilization have been using plants in one form or the other for poultices or as decoctions. Alangium salvifolium (Linn), family Alangeaceae, is a tree that grows in the wild throughout India. The plant has been used in the Indian traditional system of medicine for skin diseases (e.g. leucoderma), articular diseases, and anti-inflammation, anti-poisonous, anti-pyretic, and anti-emetic requirements. However, no scientific evidence is available regarding its antimicrobial activity. An investigation of Alangium salvifolium as an antimicrobial activity agent is the objective of our present study. The ATCC culture used in this study was collected from department of Microbiology, G.M.C., Bhopal (M.P.). Shade dried crude powder (200 grams) of seed of Alangium salvifolium was separately extracted with methanol in a soxhelt apparatus. The Antimicrobial activities were then studied by applying the Disc–Diffusion method. Our results indicate that the observed antimicrobial activity of the fraction appears to be due to unknown secondary metabolites in it. H.P.L.C. (high performance liquid chromatography) and chemical studies may, thus be useful in analyzing the presence of unknown secondary metabolites in the fractions.
Źródło:: World News of Natural Sciences; 2018, 20; 176-181
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Chemical diversity of silverweed (Potentilla anserina L.) growing at the edges of arable fields.
Autorzy:: Angielczyk, Mirosław
Bączek, Katarzyna
Geszprych, Anna
Przybył, Jarosław L.
Węglarz, Zenon
Powiązania:: https://bibliotekanauki.pl/articles/2199570.pdf
Data publikacji:: 2010-06-01
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: catechins
flavonoids
phenolic acids
populations
secondary metabolites
silverweed herb
tannins
Opis:: The medicinal usage of silverweed herb (Anserinae herba) is primarily related to the presence of phenolic compounds. Three populations of silverweed (Potentilla anserina L.) occurring at the edges of arable fields in Podlasie area (north-eastern Poland) were compared in respect of the content and composition of phenolics. Herb collected from the investigated populations differed in the content of determined compounds. The tannin content was very low (0.81-0.91%). The total flavonoid content ranged from 0.48 to 0.60%. Phenolic acid content was much higher (1.38-2.26%). Three flavan-3-ols: (+)-catechin, (-)-epicatechin, and (-)-epigallocatechin, four flavonol glycosides: rutoside, quercetin-3-O-glucoside, isorhamnetin-3-O-glucoside, and kaempferol-3-O-glucoside, as well as one phenolic acid (ellagic acid) were identified as a_result of HPLC analysis of methanolic extracts from the investigated raw materials. The most considerable differences between populations concerned the content of (+)-catechin (87.0-199.3 mg × 100 g-1), (-)-epigallocatechin (141.9-290.6 mg × 100 g-1), and rutoside (192.3-386.0 mg × 100 g-1) in herb...
Źródło:: Plant Breeding and Seed Science; 2010, 61; 41-46
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Bioinformatic insight into Portulaca oleracea L. (Purslane) of Bulgarian and Greek origin
Autorzy:: Balabanova, V.
Hristov, I.
Zheleva-Dimitrova, D.
Sugareva, P.
Lozanov, V.
Gevrenova, R.
Powiązania:: https://bibliotekanauki.pl/articles/2117810.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: Portulaca oleracea
LC–HRAMS
secondary metabolites
descriptive analysis
multivariate statistics
Opis:: Portulaca oleracea L. (Portulacaceae) is used as functional food and its nutritional and therapeutic properties are related to the high levels of organic and fatty acids, polyphenols, polysaccharides and cyclo-dopa amides. This study presents a strategy based on liquid chromatography – high resolution accurate mass spectrometry method (LC – HRAMS) and bioinformatic methods to analyze 33 purslane accessions originating from 11 floristic regions in Bulgaria together with 5 accessions of Greek provenance. Extracts were obtained by microwave extraction. Based on the LC-MS metabolic “fingerprints” of assayed samples, a purslane metabolic database was developed. LC-MS data were proceeded with Software application Compound Discover 2.0 (Thermo Fischer Sci., USA). Principal Component Analysis (PCA) combined with both descriptive and differential analyses were used to find marker metabolites to distinguish different geographical regions. The differential analysis of the Bulgarian and Greek samples allowed the identification of 50 marker metabolites. Based on accurate masses, retention times, fragmentation patterns in MS/MS, comparison with commercial standards and literature data, these secondary metabolites were identified after detailed analysis of Volcano-plots. For the first time, 29 compounds are reported. The identified compounds were used to perform a study of the biosynthetic pathways of purslane secondary metabolites using Kyoto Encyclopedia of Genes and Genomes (KEGG) software platform. The statistical treatments identified marker compounds that can be used to distinguish the origin of accession set. Combining LC-MS data with multivariate statistical analysis was shown to be effective in studying the purslane metabolites, allowing for integration of chemistry with geographic origin.
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2020, 62, 1; 7-21
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Therapeutic Properties of Epigaeic Lichens from Sowia Gora
Właściwości lecznicze porostów naziemnych Sowiej Góry
Autorzy:: Studzińska-Sroka, E.
Zarabska-Bożejewicz, D.
Powiązania:: https://bibliotekanauki.pl/articles/388847.pdf
Data publikacji:: 2013
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: Cetraria
Cladonia
Peltigera
secondary metabolites
nature protection
metabolity wtórne
ochrona przyrody
Opis:: One of the aim of nature protection should be improving the knowledge of society about properties of observed organisms. It can be helpful in creating the properly ecological conspicuous. Some species of lichens, eg genus Usnea, Ramalina, Pseudevernia, Cetraria, were commonly used in medicine from antiquity time. Their therapeutic properties are connected with the presence of secondary metabolites, eg cetraric acid, furmarprotocetraric acid, usnic acid. Nowadays few of the lichens have still application in producing some pills, tablets, syrups, toothpastes. During field trips in Sowia Gora (Puszcza Notecka) some epigaeic lichens known from therapeutic properties were recorded. Suggestion of necessity of putting some information connected with therapeutic properties of species in the didactic table along the road of nature complexes characterized by high diversity of lichens is given. It permits to increase the level of interest in this group of species and ipso facto contribute to protection of lichens.
Jednym z celów ochrony przyrody powinno być poszerzanie wiedzy społeczeństwa na temat właściwości obserwowanych organizmów. Może być to pomocne w kreowaniu właściwej świadomości prośrodowiskowej. Niektóre gatunki porostów, np. z rodzaju Usnea, Ramalina, Pseudevernia, Cetraria, były powszechnie wykorzystywane w medycynie od czasów starożytnych. Ich lecznicze właściwości powiązane są z obecnością metabolitów wtórnych, takich jak kwas cetrarowy, kwas furmaprotocetrarowy, kwas usninowy. Obecnie istnieje grupa porostów, która jest wykorzystywana przy produkcji tabletek, syropów, past do zębów. Podczas badań terenowych w okolicach Sowiej Góry (Puszcza Notecka) udało się zaobserwować interesujące porosty naziemne wykazujące właściwości lecznicze. W artykule zasygnalizowano konieczność umieszczania informacji na temat właściwości leczniczych porostów na tablicach o charakterze dydaktycznym w kompleksach przyrodniczych cechujących się dużym bogactwem gatunkowym porostów. Pozwoli to zwiększyć zainteresowanie tą omówioną grupą organizmów i tym samym przyczynić się do ochrony porostów.
Źródło:: Ecological Chemistry and Engineering. A; 2013, 20, 6; 675-680
1898-6188
2084-4530
Pojawia się w:: Ecological Chemistry and Engineering. A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Isolation, identification and screening of Actinobacteria in volcanic soil of Deception Island (the Antarctic) for antimicrobial metabolites
Autorzy:: Cheah, Yoke−Kqueen
Lee, Learn−Han
Chieng, Cheng−Yun Catherine
Wong, Vui−Ling Clemente Michael
Powiązania:: https://bibliotekanauki.pl/articles/2049760.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Antarctic
Actinobacteria
secondary metabolites
16S
diffusion assay
selective isolation media
Źródło:: Polish Polar Research; 2015, 1; 67-78
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Influence of light conditions on the morphogenetic and biochemical response of selected ornamental plant species under in vitro conditions: a mini-review
Autorzy:: Kulus, D.
Woźny, A.
Powiązania:: https://bibliotekanauki.pl/articles/2096967.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: horticulture
LED panels
plant tissue culture
regeneration
secondary metabolites
somatic
embryogenesis
Opis:: In vitro tissue culture technique, especially micropropagation, is attracting increasing attention in the production of ornamental plants. This technique will probably dominate the horticultural market in the near future. Light is one of the several factors affecting the success of in vitro plant tissue cultures. It directly affects the widely understood morphogenetic response of the explant, i.e., the ability of the explant to grow or regenerate, produce roots, etc. Lighting conditions provided during the in vitro stage may also greatly affect the plant vigor after transferring to nonsterile conditions. Moreover, the necessity of providing artificial light significantly contributes to the total cost of maintaining tissue cultures (related to energy consumption and the need to cool down the heat generated by lamps). Light quantity (intensity) and quality (spectral composition) are the two main parameters that determine its influence on in vitro cultures. This impact depends on the species and other accompanying factors. The aim of this mini-review is to summarize information on the influence of light on the morphogenetic and biochemical response of explants of some selected ornamental plant species grown under in vitro conditions.
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 1; 75-83
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: The effectivity of metabolite secondary extract of bacteria associated with sea grass (Cymodocea rotundata) for Vibriosis treatment in tiger shrimp (Penaeus monodon)
Autorzy:: Lili, Walim
Maulana, Gusman
Astuty, Sri
Rosidah, Rosidah
Powiązania:: https://bibliotekanauki.pl/articles/1076652.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Cymodocea rotundata
Penaeus monodon
Vibrio harveyi
bacteria association
secondary metabolites
survival rate
vibriosis
Opis:: The natural occurrence of the shrimp (Penaeus monodon Fabricius, 1798) and seagrass (Cymodocea rotundata Asch. & Schweinf.) is found in the area of Indian Ocean, Indonesia, for central Pacific. Vibriosis can cause death in larvae, juvenile and adult shrimp almost close to 100%. Antibacterial substances from secondary metabolites are produced by plants and animals to reduce the use of synthetic antibiotics. The purpose of this research was to determine the ability of secondary metabolites contained in the bacterial extract of the association of sea grass Cymodocea rotundata (isolate code BA.1) to treat vibriosis in tiger shrimp (Penaeus monodon). This research was conducted at the Laboratory of Integrated Biotechnology and Laboratory of Aquaculture, Fisheries and Marine Sciences Faculty, Universitas Padjadajaran, and at the Brackish and Southern Ocean Aquaculture Development Center Pangandaran, from June to September 2018. The research method used was experimental, with completely randomized design (CRD) consisting of five treatments with three replications including; control treatment (concentration of 0 mg·L–1), 150 mg.L–1, 300 mg·L–1, 450 mg·L–1 and 600 mg·L–1. Observations made include clinical symptoms (morphology, behavior) and survival rate. Clinical symptoms of infected tiger shrimp during the in vivo test were red spots on the abdomen and necrosis of some leg and tail segments. The behavior of tiger shrimp mostly shows less responsive movements to fish-feed on the first day, and showing responsive and active behavior on the fifth day. In vivo test results for 14 days showed that the highest survival rate of 51.67% was in case of the addition of antibacterial extracts of BA.1 with a concentration of 300 mg·L–1.
Źródło:: World News of Natural Sciences; 2019, 26; 96-115
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Recent developments in Neem (Azadirachta indica – A. Juss) derived antimicrobial constituents for control of human and plant diseases – a review
Autorzy:: Dohroo, Aradhana
Karnwal, Arun
Ghai, Manisha
Powiązania:: https://bibliotekanauki.pl/articles/1036421.pdf
Data publikacji:: 2016
Wydawca:: Śląski Uniwersytet Medyczny w Katowicach
Tematy:: antiallergic
antidermatic
antifeedent
antifungal
anti-inflammatory activity
azadirachta indica
bacterial pathogens
neem
secondary metabolites
Opis:: Neem has immense biocontrol potential against a large number of pathogens causing various diseases in human beings and plants. The plant has maximum useful value in its leaves, bark, flowers and fruits than any other tree species. These values include antiallergic, antidermatic, antifeedent, antifungal and anti-inflammatory properties. Due to the vast activities of neem, it has become extremely valuable in making our ecosystem a green treasure. Neem leaves have been demonstrated to exhibit immuno-modulatory, anti-inflammatory, antiulcer, antimalarial properties. Neem tree plant parts contain a promising pest control substance which has found effective use against economically important agricultural pests. Neem plant products are easy to process by village level industries on the micro scale level and use by resource poor farmers in crop protection resulting thereby in income generation. This plant also has antioxidant properties and free radical scavenging potential in its different extracted solvents. The present review highlights the properties of neem against the pathogens of living organisms for environmental protection.
Źródło:: Annales Academiae Medicae Silesiensis; 2016, 70; 220-223
1734-025X
Pojawia się w:: Annales Academiae Medicae Silesiensis
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:: Wybrane wtórne metabolity roślinne jako środki przeciwdrobnoustrojowe
Secondary plant metabolities as antimicrobial agents
Autorzy:: Adaszyńska, M.
Swarcewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/172678.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Chemiczne
Tematy:: właściwości przeciwdrobnoustrojowe
wtórne metabolity roślinne
medycyna naturalna
antimicrobial properties
secondary metabolites of plants
herbal medicines
Opis:: One of the oldest achievements of the human thought is the use of plants and plant extracts in therapeutics. Drugs of a plant origin are characterized by multieffects. In recent years, much interest was directed at medicinal plants containing a mixture of biologically active substances with antimicrobial properties. In medicine, for many years have been used substances extracted from plants and their secondary metabolites and plant extracts, but now due to the development of organic chemistry, pharmacology and medicine, we can determine which biologically active substances produced by these plants are useful. Antimicrobial activity were described for selected groups of plant secondary metabolites, which potentially would allow their use as antimicrobial substances in medicines. These substances can be complementary to basic medical treatment, because their main advantage is a lower incidence of side effects. This paper presents an overview of research on antimicrobial properties of alkaloids, coumarins, flavonoids, terpenoids and essential oils, phytosterols, and tannins and phenolic compounds. Examples of alkaloids active against strains of S. aureus, E. faecalis and E. coli are quindoline (1) and cryptolepine (2) which are components of an extract of Sida acuta [7]. Saal et al. described the effect of 7-amino-4-methylcoumarin (8) and daphnetin (9) isolated from Gingo biloba. These compounds are characterized by activity against strains of the genus S. aureus, E. coli and Salmonella entertidis [5]. Apigenin (15) and amentoflavone (16) have a strong activity against pathogenic fungi Candida albicans, S. cerevisiae, and T. beigelii. Terpenoids are potent phorbol esters (21-26), dustanine (27), 15-acetoxydustaine (28), cycloartenole (29) [14]. Several phytosterols has antibacterial activity [2, 5, 48]. The examples might be: stigmasterol (36), β-sitosterol (37), epidoxysterol (38) isolated from Morinda citrifolia (Rubiaceae), which were characterized by strong activity against Mycobacterium intracellulare [5]. Many authors reported that the tannins and phenolic compounds were characterized by antimicrobial activity [49-53]. Natural substances that inhibit the growth of microorganisms are becoming an alternative to synthetic compounds, as this literature review confirms it.
Źródło:: Wiadomości Chemiczne; 2013, 67, 3-4; 303-319
0043-5104
2300-0295
Pojawia się w:: Wiadomości Chemiczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: Współczesne metody ekstrakcji, izolacji i analizy metabolitów wtórnych roślin
Autorzy:: Haliński, Ł. P.
Czerwicka, M.
Stepnowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/274205.pdf
Data publikacji:: 2010
Wydawca:: Roble
Tematy:: metabolity wtórne
ekstrakcja roślin
analiza ilościowa
analiza jakościowa
secondary metabolites
plant extraction
quantitative analysis
qualitative analysis
Źródło:: LAB Laboratoria, Aparatura, Badania; 2010, 15, 6; 16-21
1427-5619
Pojawia się w:: LAB Laboratoria, Aparatura, Badania
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: Metabolity wtórne – znaczenie w środowisku przyrodniczym i gospodarce człowieka
Secondary metabolites – importance in the natural environment and human economy
Autorzy:: Nowak, Dorota
Piekutin, Janina
Powiązania:: https://bibliotekanauki.pl/chapters/27317147.pdf
Data publikacji:: 2023-07-19
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: metabolity wtórne
rośliny
grzyby
flawonoidy
alkaloidy
terpeny
mykotoksyny
biocydy
Trichoderma
secondary metabolites
plants
fungi
flavonoids
alkaloids
terpenes
mycotoxins
biocides
Opis:: Metabolity wtórne to bardzo różnorodna grupa związków chemicznych naturalnie produkowanych przez organizmy. Spełniają one funkcje sygnałów biochemicznych, które umożliwiają komunikację między organizmami. Te niskocząsteczkowe związki organiczne działają jako chemomediatory ekologiczne, pełniąc funkcje obronne, przywabiające, ułatwiające rozmnażania, a także regulacyjne. Metabolity wtórne produkowane są przez bakterie właściwe, promieniowce, grzyby, glony, a także zwierzęta. Poznanie budowy oraz właściwości biologicznych umożliwiło zastosowanie metabolitów wtórnych w produkcji ważnych leków, takich jak: antybiotyki, leki przeciwnowotworowe, przeciwbólowe, immunosupresyjne, obniżające poziom cholesterolu lub regulujące poziom cukru we krwi. Metabolity wtórne mogą być zastosowane także jako naturalne i mniej szkodliwe środki ochrony roślin zwalczające fitopatogeny. Wśród metabolitów wtórnych są również silnie działające związki toksyczne, jak np. mykotoksyny produkowane przez grzyby. W rozdziale dokonano przeglądu literatury na temat budowy, funkcji ekologicznych oraz znaczenia wybranych metabolitów wtórnych roślin oraz grzybów.
Secondary metabolites are a very diverse group of chemical compounds naturally produced by organisms. They perform functions of biochemical signals and enable communication between organisms. They are low-molecular organic compounds and act as ecological chemomediators. They perform defensive, attracting, facilitating reproduction, and regulatory functions. Secondary metabolites are produced by bacteria, actinomycetes, fungi, algae, as well as animals. Knowledge of the structure and biological properties has made it possible to use secondary metabolites in the production of important drugs such as antibiotics, anticancer drugs, painkillers, immunosuppressants, cholesterol-lowering or blood sugar-regulating drugs. Secondary metabolites can also be used as natural and less harmful plant protection products to combat phytopathogens. Among secondary metabolites are also potent toxic compounds such as: mycotoxins produced by fungi. This chapter reviews the literature on the structure, ecological functions and importance of selected secondary metabolites of plants and fungi.
Źródło:: Inżynieria środowiska i biotechnologia. Wyzwania i nowe technologie; 201-214
9788371939013
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:: Application and properties of selected flavanones
Autorzy:: Błazińska, P.
Sykuła, A.
Powiązania:: https://bibliotekanauki.pl/articles/410506.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
Tematy:: flavanones
flavonoids
secondary plant metabolites
biological activity
flawanony
flawonoidy
wtórne metabolity roślinne
aktywność biologiczna
Opis:: Flavanones, secondary plant metabolites, are one of the main group of flavanoids. They are widely spread in nature in many plants. The large diversity of structural structure of flavanones and controlled methods of modifying their molecules have a huge impact on biological activity. The present review will summarize the current knowledge about occurrence, obtaining by chemical synthesis, application and bioactivity of flavanones. Also, they are received from specific chemical synthesis. Flavanones have a great biological activity. Derivatives of flavanone have many different properties such as anti-inflammatory, anticancer, antioxidant, antimicrobial or hepatoprotective activities. These natural polyphenolic compounds are used in cosmetology, pharmacy and medicine. The demand and usage on them increases.
Źródło:: Biotechnology and Food Science; 2018, 82, 1; 61-74
2084-0136
2299-6818
Pojawia się w:: Biotechnology and Food Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 20.

Tytuł:: Antibacterial activity of caffeine against plant pathogenic bacteria
Autorzy:: Sledz, Wojciech
Los, Emilia
Paczek, Agnieszka
Rischka, Jacek
Motyka, Agata
Zoledowska, Sabina
Piosik, Jacek
Lojkowska, Ewa
Powiązania:: https://bibliotekanauki.pl/articles/1039014.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: antibacterial activity
plant secondary metabolites
Ralstonia solanacearum
Clavibacter michiganesis subsp. sepedonicus
Dickeya solani
Pectobacterium atrosepticum
Pseudomonas syringae pv. tomato and Xanthomonas campestris subsp. campestris
Opis:: The objective of the present study was to evaluate the antibacterial properties of a plant secondary metabolite - caffeine. Caffeine is present in over 100 plant species. Antibacterial activity of caffeine was examined against the following plant-pathogenic bacteria: Ralstonia solanacearum (Rsol), Clavibacter michiganesis subsp. sepedonicus (Cms), Dickeya solani (Dsol), Pectobacterium atrosepticum (Pba), Pectobacterium carotovorum subsp. carotovorum (Pcc), Pseudomonas syringae pv. tomato (Pst), and Xanthomonas campestris subsp. campestris (Xcc). MIC and MBC values ranged from 5 to 20 mM and from 43 to 100 mM, respectively. Caffeine increased the bacterial generation time of all tested species and caused changes in cell morphology. The influence of caffeine on the synthesis of DNA, RNA and proteins was investigated in cultures of plant pathogenic bacteria with labelled precursors: [3H]thymidine, [3H]uridine or 14C leucine, respectively. RNA biosynthesis was more affected than DNA or protein biosynthesis in bacterial cells treated with caffeine. Treatment of Pba with caffeine for 336 h did not induce resistance to this compound. Caffeine application reduced disease symptoms caused by Dsol on chicory leaves, potato slices, and whole potato tubers. The data presented indicate caffeine as a potential tool for the control of diseases caused by plant-pathogenic bacteria, especially under storage conditions.
Źródło:: Acta Biochimica Polonica; 2015, 62, 3; 605-612
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:: Roślinne źródła półproduktów chemicznych i farmaceutycznych. Przykład trójterpenu z kasztanowca
Vegetable sources of semi-finished chemical and pharmaceutical products. Example of triterpene made from chestnut
Autorzy:: Grynkiewicz, G.
Gruza, M.
Jatczak, K
Powiązania:: https://bibliotekanauki.pl/articles/142123.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:: escyna
saponiny triterpenowe
biologicznie aktywne związki naturalne
metabolity wtórne roślin
leki pochodzenia roślinnego
aescin
triterpene saponins
biologically active natural compounds
secondary metabolites of plants
drugs of vegetable origin
Opis:: Biologicznie aktywne i medycznie użyteczne substancje naturalne pochodzenia roślinnego występują na ogół w wieloskładnikowych grupach związków o podobnych właściwościach chemicznych i fizykochemicznych, co znacznie utrudnia ich izolację, a zwłaszcza oczyszczanie. Lecznicze saponiny kasztanowca, tradycyjnie stosowane w medycynie w postaci złożonej mieszaniny (escyna), są przykładem sytuacji w której właściwości farmakologiczne indywidualnych komponentów. Zaprezentowano jedno z możliwych rozwiązań tego problemu na drodze transformacji chemicznych dostępnego surowca, które umożliwiają otrzymanie kluczowego pentacyklicznego triterpenu – protoescygeniny (PES) w stanie wysokiej czystości chemicznej, w procesie realizowanym w pilotowej skali technicznej. Wskazano możliwości zastosowania PES jako dogodnego półproduktu do syntez saponinomimetyków o zróżnicowanych typach struktury.
Biologically active and medically useful natural substances of vegetable origin usually occur in multi-component groups of compounds with similar chemical and physical properties, which significantly inhibit their isolation, and in particular their purification. Therapeutic chestnut saponins, traditionally used in medicine in the form of complex mixture (aescin), are the example of situation where pharmacological properties of individual components. One of the solutions to this issue was presented, based on chemical transformation of available raw material, allowing production of key pentacyclical triterpene - protoescigenin (PES) of high chemical purity, in the process implemented on pilot scale. Possibilities of using PES as a convenient semi-finished product fin the synthesis of mimetic saponins with varying structures.
Źródło:: Chemik; 2015, 69, 2; 75-80
0009-2886
Pojawia się w:: Chemik
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:: Composition, biological properties and therapeutic effects of lavender (Lavandula angustifolia L.). A review
Lawenda wąskolistna (Lavandula angustifolia L.) - lecznicza siła natury. Przegląd
Autorzy:: Prusinowska, R.
Smigielski, K.B.
Powiązania:: https://bibliotekanauki.pl/articles/950560.pdf
Data publikacji:: 2014
Wydawca:: Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:: lavender
lavandula angustifolia
herbs
essential oils
phytotherapy
secondary plant
metabolites
Opis:: Lavender (Lavandula angustifolia) is a shrub of the family Lamiaceae, native to the Mediterranean region. The material used for herbal purposes includes lavender flowers (Lavandula flores) containing essential oil (3%), anthocyanins, phytosterols, sugars, minerals, and tannins. The qualitative and quantitative composition of the essential oil of lavender is variable and depends on genotype, growing location, climatic conditions, propagation, and morphological features. The essential oil contains over 300 chemical compounds. The dominant components are linalool, linalyl acetate, terpinen-4-ol, acetate lavandulol, ocimene, and cineole. Lavender essential oil has good antioxidant and antimicrobial activities and a significant positive effect on the digestive and nervous systems. Lavender extract prevents dementia and may inhibit the growth of cancer cells, while lavender hydrolate is recommended for the treatment of skin problems and burns.
Lawenda wąskolistna (Lavandula angustifolia) to krzewiasta roślina z rodziny jasnotowatych (Lamiaceae), pochodząca z terenów basenu Morza Śródziemnego. Surowcem zielarskim są kwiaty lawendy (Lavandula flores), zawierające olejek eteryczny (do 3%), antocyjany, fitosterole, cukry, związki mineralne i garbniki. Skład jakościowy i ilościowy olejku eterycznego z lawendy jest zmienny i zależy od genotypu, miejsca uprawy, warunków klimatycznych, sposobu rozmnażania i cech morfologicznych. W olejku eterycznym wstępuje ponad 300 związków chemicznych, składnikami dominującymi są linalol, octan linalilu, terpinen-4-ol, octan lawandulolu, ocymen oraz cyneol. Olejek eteryczny charakteryzuje dobra aktywność przeciwdrobnoustrojowa i antyoksydacyjna oraz wyraźny pozytywny wpływ na układ trawienny i nerwowy. Ekstrakt z lawendy przeciwdziałała otępieniu oraz może wpływać hamująco na rozwój komórek rakowych, zaś hydrolat lawendowy zalecany jest w leczeniu problemów skórnych i poparzeń.
Źródło:: Herba Polonica; 2014, 60, 2
0018-0599
Pojawia się w:: Herba Polonica
Dostawca treści:: Biblioteka Nauki

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