Temat: plant growth - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Nematodes associated with plant growth inhibition in the Wielkopolska region
Autorzy:: Winiszewska, G.
Dmowska, E.
Chalanska, A.
Dobosz, R.
Kornobis, F.
Ilieva-Makulec, K.
Skwiercz, A.
Wolny, S.
Ishaqe, E.
Powiązania:: https://bibliotekanauki.pl/articles/64987.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nematode
plant growth
inhibition
plant parasite
Wielkopolska region
Opis:: The list of species of the plant parasitic nematodes presented in this paper (133 species belonging to 14 families) is based on the results of faunistic research conducted in the Wielkopolska region by Polish nematologists up until the year 2010, and the results obtained from the project “Elaboration of Innovative Methods for Rapid Identification of Nematodes Causing Damage to the Economy” managed by the Museum and Institute of Zoology of the Polish Academy of Sciences. During the two years of the project (2010-2011) we found 21 species of nematodes which had not yet been reported in the list of species from the Wielkopolska region. Two of them were reported for the first time in Poland.
Źródło:: Journal of Plant Protection Research; 2012, 52, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Plant growth promoting rhizobacteria and Rhizophagus irregularis: biocontrol of rice blast in wild type and mycorrhiza-defective mutant
Autorzy:: Ashnaei, S.P.
Powiązania:: https://bibliotekanauki.pl/articles/2084709.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: plant growth promoting rhizobacteria (PGPR)
Rhizophagus irregularis
rice blast
Opis:: Rice blast is one of the most destructive rice diseases known to cause considerable yield losses globally. Plant growth promoting rhizobacteria (PGPR) and arbuscular mycorrhizal fungi (AMF) are closely associated with rice plants and improve plant growth and health. To determine how isolated bacteria trigger rice growth, an assessment of phosphate solubilization and auxin production mechanisms was carried out in vitro and in vivo. In this study, the interactions between PGPR and Rhizophagus irregularis were evaluated in wildtype and CYCLOPS mutant plants to provide a sustainable solution against blast disease and reduce the amount of yield loss. Importantly, Bacillus subtilis UTSP40 and Pseudomonas fluorescens UTSP50 exhibited a suppressive effect on AMF colonization which shows the probable existence of a functional competition between AMF and PGPR to dominate the rhizosphere. On the other hand, R. irregularis decreased the biocontrol activity of B. subtilis UTSP40 in wild type, although this reduction was not significant in mutant plants. Results showed that the same defense-related genes were induced in the roots of wild type colonized by B. subtilis UTSP40 and R. irregularis. Therefore, plant cell programs may be shared during root colonization by these two groups of beneficial microorganisms.
Źródło:: Journal of Plant Protection Research; 2019, 59, 3; 362-375
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Allelopathy in Solanaceae plants
Autorzy:: Mushtaq, W.
Siddiqui, M.B.
Powiązania:: https://bibliotekanauki.pl/articles/65653.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: plant growth
allelopathy
allelochemical
bioassay
plant extract
fraction
residue
Solanaceae
Opis:: Solanaceae plants have strong allelopathic potential, and therefore the action is confirmed through: a) bioassays with liquid or various solvent extracts and residues, b) fractionation, identification, and quantification of causative allelochemicals. Most assessments of allelopathy involve bioassays of plant or soil extracts, leachates, fractions, and residues which support seed germination and seedling growth in laboratory and greenhouse experiments. Plant growth is also stimulated below the allelopathic threshold, however severe growth reductions may be observed above the threshold concentration depending on the sensitivity of the receiving species. Generally, seedling growth is more sensitive than germination, particularly root growth. Some approaches showed that field soil collected beneath donor plants significantly reduced or somewhat promoted the growth of the recipients plants. Petri dish bioassays with aqueous extracts of different parts of donor plants showed considerable phytotoxic activities in a concentration-dependent manner with leaf aqueous extracts being most dominant. Delayed seed germination and slow root growth attributable to the extracts may be baffled with diffusion effects on the rate of imbibition, delayed initiation of germination, and particularly cell elongation; the main factor that is responsible for affecting root growth before and after the tip penetrates the testa. Light and electron microscopy extract analysis at the ultrastructural level are correctly investigated. Several Solanaceae plants have allelopathic potential, and therefore the activities, kinds and quantity of allelopathic compounds differ depending on the plant species. The incorporation of allelopathic substances into agricultural management might scale back the development of pesticides and reduce environmental deterioration.
Źródło:: Journal of Plant Protection Research; 2018, 58, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effect of indigenous microbes on growth and blister blight disease of tea plant
Autorzy:: Fauziah, F.
Setiawati, M.R.
Pranoto, E.
Susilowati, D.N.
Rachmiati, Y.
Powiązania:: https://bibliotekanauki.pl/articles/2084818.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: fertilizer
indigenous microbes
plant growth promoting rhizobacteria (PGPR)
tea
Opis:: The role of the tea commodity in the economy of Indonesia is quite strategic. Various types of microorganisms in nature have been known to increase the benefit of the root function, suppress disease, and accelerate plant growth. This study aimed to determine the potential of indigenous bacteria (Azoto II-1, Acinetobacter sp., bacteria Endo-5, bacteria Endo-65 and Endo-76) on the growth of tea plants and their potential in increasing resistance to blister blight disease. The test of microbes’ potential effect on growth and blister blight was conducted in Gambung, West Java in an experimental field using a randomized block design (RBD) with six treatments and each treatment was replicated four times. The composition of the treatments was: A) Endo-5; B) Endo-65; C) Endo-76; D) Azoto II-1; E) Acinetobacter sp.; and F) control (without microbes). Bacterial suspension was applied directly to the soil at a dose of 2 l · ha−1. The bacterial suspension was applied six times at 1 week intervals. The results of field observations indicated that the intensity of blister blight decreased in all treatments but did not significantly differ from the control. Meanwhile, the results of Acinetobacter sp. treatment in tea shoots was 17.26% higher than the control.
Źródło:: Journal of Plant Protection Research; 2019, 59, 4; 529-534
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Screening, isolation and characterization of culturable stress-tolerant bacterial endophytes associated with Salicornia brachiata and their effect on wheat (Triticum aestivum L.) and maize (Zea mays) growth
Autorzy:: Karnwal, A.
Powiązania:: https://bibliotekanauki.pl/articles/2084717.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: endophyte
MEGA X
plant growth promotion
Salicornia brachiata
salt stress
Opis:: Globally more than 5.2 billion hectares of farming fields are damaged through erosion, salinity and soil deterioration. Many salt stress tolerant bacteria have plant growth promoting (PGP) characteristics that can be used to overcome environmental stresses. Isolation and screening of salt-tolerant endophytes from Salicornia brachiata were achieved through surface sterilization of leaves followed by cultivation on 4% NaCl amended media. Performance of isolates towards indole-3-acetic acid (IAA) production, phosphate solubilization, ACC deaminase activity, ammonia production, siderophore production and stress tolerance were determined. On the basis of the highest plant growth promoting activity, SbCT4 and SbCT7 isolates were tested for plant growth promotion with wheat and maize crops. In the present study, a total of 12 morphologically distinct salt-tolerant endophytic bacteria was cultured. Out of 12 isolates, 42% of salt-tolerant endophytes showed phosphate solubilization, 67% IAA production, 33% ACC-deaminase activity, 92% siderophore production, 41.6% ammonia production and 66% HCN production. A dendrogram, generated on the basis of stress tolerance, showed two clusters, each including five isolates. The bacterial isolates SbCT4 and SbCT7 showed the highest stress tolerance, and stood separately as an independent branch. Bacterial isolates increased wheat shoot and root dry weights by 60–82% and 50–100%, respectively. Similarly, improved results were obtained with maize shoot (27–150%) and root (80–126%) dry weights. For the first time from this plant the bacterial isolates were identified as Paenibacillus polymyxa SbCT4 and Bacillus subtilis SbCT7 based on phenotypic features and 16S rRNA gene sequencing. Paenibacillus polymyxa SbCT4 and B. subtilis SbCT7 significantly improved plant growth compared to non-inoculated trials.
Źródło:: Journal of Plant Protection Research; 2019, 59, 3; 293-303
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Azoles in the control of Puccinia horiana on chrysanthemum
Autorzy:: Wojdyla, A.T.
Powiązania:: https://bibliotekanauki.pl/articles/65941.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: fungicide
white rust
control
Puccinia horiana
plant growth
phytotoxicity
azole
chrysanthemum
Źródło:: Journal of Plant Protection Research; 2002, 42, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Pegomya nigritarsis Ztt. [Diptera, Anthomyiidae] as an interesting option for biological control of Rumex confertus Willd
Autorzy:: Piesik, D
Powiązania:: https://bibliotekanauki.pl/articles/65479.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: weed
biological control
plant growth
pest weed
Rumex confertus
Pegomya nigritarsis
biological agent
Opis:: There is currently a very favorable climate for biological control of pest weeds. Moreover, biological control plays a significant role in the Integrated Plant Protection Management. Traditional methods of weed control, such as cultivation and the use of herbicides are not practical or desirable for some stands of weeds, and biological control has become an attractive strategy for control of pest weeds. Control of Rumex confertus Willd. by natural enemies that reduce its density is the good example of utilizing biological control on the European and worldwide scale. The aim of the conducted studies was to evaluate the dynamic of population of Pegomya nigritarsis Ztt. (Diptera, Anthomyiidae) on Rumex confertus Willd. and to determine the impact of pest’s injuries on the growth of a plant.
Intensyfikacja produkcji roślinnej zmusza do poszukiwania coraz to nowszych sposobów walki z agrofagami. Metody biologiczne są znane od wielu lat. Cały czas jednak odkrywa się nowe owady mogące odegrać pewną rolę w redukowaniu zachwaszczenia. Introdukcja nowych organizmów nie ma na celu wyeliminowania z ochrony roślin metod chemicznych. Jednak środki chemiczne są często mało selektywne, skażają środowisko oraz szybko stają się nieskuteczne, ponieważ organizmy nabywają odporności. Pegomya nigriarsis Ztt. to gatunek mogący odegrać pewną rolę w biologicznej walce z tym chwastem. Larwy żerując w liściach silnie redukują powierzchnię asymilacyjną chwastu. Tak uszkodzone rośliny zasychają.
Źródło:: Journal of Plant Protection Research; 2002, 42, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Studies on trinexapac-ethyl dose reduction by combined application with adjuvants in spring barley
Autorzy:: Miziniak, Wojciech
Matysiak, Kinga
Kaczmarek, Sylwia
Powiązania:: https://bibliotekanauki.pl/articles/961641.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ammonium sulphate
organosilicone surfactant
plant growth regulator
spray
liquid ph
yield components
Opis:: Trinexapac-ethyl is a popular plant growth regulator used in various crops, mostly due to its unique anti-lodging properties. Recently it has been found that this substance is also active in stress protection, which may increase its importance in the coming years. This paper presents a new approach to its application. Trinexapac-ethyl belongs to the cyclohexanedione class of herbicide chemistry, thus it is structurally similar to common graminicides frequently used with adjuvants. Th is study examines the effects of the application of trinexapac-ethyl with adjuvants. Field trials were conducted in the Institute of Plant Protection in Poznań (Poland), in 2014 and 2015. Trinexapac-ethyl was applied at recommended (0.4 l · ha–1) and reduced doses (0.2 l · ha–1) with organosilicone surfactant, ammonium sulphate and citric acid on spring barley. Stem shortening, yield components and grain quality were examined. The results of the study confirmed the possibility of dose reduction of trinexapac-ethyl by way of combined application with citric acid that reduced the pH of spray liquid or with ammonium sulphate without aff ecting its effectiveness. The greatest stem height reduction was observed after the application of a full dose of trinaxapac ethyl and its reduced dose in the mixture with citric acid or ammonium sulphate. Depending on the year of study, the eff ectiveness of the substances on stem reduction ranged from 5.6 to 16.5%. The tested mixtures did not have any significant impact on the number of grains per ear or the yield of spring barley. Trinexapac-ethyl and its mixtures with adjuvants did not influence the crude protein and starch in spring barley grains.
Źródło:: Journal of Plant Protection Research; 2017, 57, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Efficacy of fungicides in the control of Sphaerotheca pannosa var. rosae on greenhouse rose cultivars and their influence on the growth of plants
Autorzy:: Wojdyla, A T
Powiązania:: https://bibliotekanauki.pl/articles/66557.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Sphaerotheca pannosa var.rosae
fungicide
rose cultivar
powdery mildew
control
rose
greenhouse
plant growth
phytotoxicity
growth
Opis:: The effectiveness of 25 fungicides in the control of Sphaerotheca pannosa var. rosae were tested on 10 cultivars of roses. Also their influence on plant growth and eventual phytotoxicity were assessed. The treatments were performed 4 times at weekly intervals. Shrubs treated with Folicur BT 225 EC, Sportak Alpha 380 EC, Systhane MZ 61 WP, Systhane 125 EC, Tango 500 SC and Topas MZ 61 WP did not show disease symptoms. Bravo 500 SC, Folpan 80 WG, Funaben 50 WP, Penncozeb 80 WG and Saprol 190 EC were slightly less effective than the other tested fungicides. The influence of chemicals on plant growth was closely correlated with cultivar - showing stimulatory, inhibitory or neutral effects. Out of tested preparations Afugan 30 EC, Opus 125 SC and Tango 500 SC were strongly phytotoxic at used doses toward all rose cultivars. The intensity of damage depended on cultivar.
W warunkach szklarniowych oceniano skuteczność 25 fungicydów w zwalczaniu Sphaerotheca pannosa var. rosae na I10 odmianach (Arianna, Celica, Escimo, Frisco, Gabriela, Lambada, Paulina, Presto, Prophyta oraz Rafaela) róż, jak również ich wpływ na wzrost oraz ewentualną fitotoksyczność. Doświadczenia prowadzono na różach otrzymanych z rozmnażania w warunkach in vitro uprawianych w doniczkach o średnicy 10 cm. W czasie prowadzenia doświadczeń utrzymywano temperaturę 23-26°C, a wilgotność powietrza wahała się pomiędzy 70-90%. Fungicydy stosowano czterokrotnie w formie opryskiwania co 7 dni. Po upływie 4 tygodni stwierdzono bardzo zróżnicowany stopień porażenia krzewów. Do odmian szczególnie podatnych na mączniaka prawdziwego należały Rafaela i Gabriela, natomiast mało podatną odmiana Prophyta. Objawów chorobowych nie stwierdzono na krzewach róż opryskiwanych fungicydami Folicur BT 225 EC, Sportak Alpha 380 EC, Systhane MZ 61 WP, Systhane 125 EC, Tango 500 SC oraz Topas MZ 61 WP. Fungicydy Bravo 500 SC, Folpan 80 WG, Funaben 50 WP, Penncozeb 80 WG i Saprol nieznacznie ustępowały swoją skutecznością pozostałym fungicydom. Wpływ stosowania fungicydów na wzrost róż był ściśle uzależniony od odmiany. W zależności od odmiany fungicydy stymulowały, hamowały lub były obojętne dla wzrostu. Silnie fitotoksycznymi fungicydami dla wszystkich badanych odmian były Afugan 30 EC, Opus 125 SC oraz Tango 500 SC. Nasilenie uszkodzeń przez preparaty było uzależnione od odmiany. Szczególnie silnie uszkadzanymi przez fungicydy były odmiany Arianna, Escimo i Rafaela.
Źródło:: Journal of Plant Protection Research; 2000, 40, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Stress-tolerant antagonistic plant growth-promoting rhizobacteria from Zea mays
Autorzy:: Kaur, A.
Devi, S.R.
Vyas, P.
Powiązania:: https://bibliotekanauki.pl/articles/66648.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: plant disease
biological control
plant health
antagonism
plant growth
Bacillus
maize
Zea mays
stress tolerance
phosphate solubilization
Opis:: Biological control of plant diseases is strongly emerging as an effective alternative to the use of chemical pesticides and fungicides. Stress tolerance is an important attribute in the selection of bacteria for the development of microbial inoculants. Fourteen salt-tolerant bacteria showing different morphological features isolated from the rhizosphere of maize were evaluated for different plant growth-promoting activities. All isolates showed auxin production ranging from 5 to 24 μg ⋅ ml–1 after 48 h incubation in tryptophan supplemented media. Phosphate solubilization ranged from 15 to 419 μg ⋅ ml–1. 1-aminocycloproprane- 1-carboxylate (ACC) deaminase activity was shown by 6 isolates, ammonia production by 9 isolates, siderophore production by 8 isolates while HCN production by 4 isolates. Four bacterial isolates with all plant growth-promoting properties also showed strong antagonistic activities against Fusarium oxysporum, F. verticillioides, Curvularia lunata and Alternaria alternata and abiotic stress tolerance against salinity, temperature, pH and calcium salts. Two selected bacterial isolates significantly enhanced the growth of pea and maize test plants under greenhouse conditions. The bacterial isolate M1B2, which showed the highest growth promotion of test plants, was identified as Bacillus sp. based on phenotypic and 16S rDNA gene sequencing. The results indicated that Bacillus sp. M1B2 is a potential candidate for the development of microbial inoculants in stressful environments.
Źródło:: Journal of Plant Protection Research; 2018, 58, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Effect of plant growth-promoting rhizobacteria [PGPR] on development of spider mite populations on glasshouse cucumber and tomato
Autorzy:: Tomczyk, A
Kielkiewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/65412.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Tetranychus cinnabarinus
spider mite
rhizobacteria
plant growth-promoting rhizobacteria
glasshouse condition
glasshouse
mite population
cucumber
tomato
Opis:: The influence of PGPR on the susceptibility of glasshouse cucumber and tomato to spider mites was studied. lt was found that plants treated with PGPR suppressed the development of mile populations on both studied crops. The effect was more evident for cucumber, as compared to tomato plants. Mite population was smaller by more than 40% on the leaves of the susceptible cucumber cultivar, Corona growing in the presence of rhizobacteria, as compared to that without bacteria. The development of spider mile population on the bacterized susceptible tomato cultivar, Romatos was more inhibited on young leaves (43%) than on older ones (34%). As the injury of plants progressed the level of inhibition was decreased.
Nasiona dwóch odmian ogórka szklarniowego - Corona, Aramis oraz pomidora odmiany Romatos moczono przez 20 minut w zawiesinie bakteryjnej wybranego szczepu Pseudomonas sp. i wysiewano do podłoża. Uzyskane rośliny porażano samicami T. cinnabarinus i obserwowano rozwój populacji szkodnika przez okres 7-8 tygodni. W ciągu pierwszych 4 tygodni liczebność stadiów ruchomych T. cinnabarinus na roślinach uprawianych w obecności bakterii była podobna do liczebności populacji na roślinach kontrolnych. Po 5 tygodniach żerowania przędziorków zaobserwowano wyraźne ograniczenie rozwoju populacji T. cinnabarinus na roślinach rosnących w obecności bakterii, w porównaniu z kontrolą. Liczebność populacji szkodnika zmniejszyła się na odmianie Corona o ponad 40%, a na mniej podatnej odmianie Aramis o kilka procent. W przypadku badanej odmiany pomidora stwierdzono ponad 20% obniżenie liczebności populacji T. cinnabarinus na roślinach rosnących w obecności bakterii z grupy PGPR, w porównaniu z roślinami wolnymi od bakterii.
Źródło:: Journal of Plant Protection Research; 2000, 40, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Isolation and identification of plant growth promoting rhizobacteria from maize (Zea mays L.) rhizosphere and their plant growth promoting effect on rice (Oryza sativa L.)
Autorzy:: Karnwal, A.
Powiązania:: https://bibliotekanauki.pl/articles/65251.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: isolation
identification
plant growth
genotyping
phytohormone
indoleacetic acid
promoting rhizobacteria
rhizobacteria
maize
Zea mays
rhizosphere
rice
Oryza sativa
Opis:: The use of plant growth promoting rhizobacteria is increasing in agriculture and gives an appealing manner to replace chemical fertilizers, pesticides, and dietary supplements. Th e objective of our research was to access the plant growth promotion traits of Pseudomonas aeruginosa, P. fl uorescens and Bacillus subtilis isolated from the maize (Zea mays L.) rhizosphere. In vitro studies showed that isolates have the potential to produce indole acetic acid (IAA), hydrogen cyanide, phosphate solubilisation, and siderophore. RNA analysis revealed that two isolates were 97% identical to P. aeruginosa strain DSM 50071 and P. aeruginosa strain NBRC 12689 (AK20 and AK31), while two others were 98% identical to P. fl uorescens strain ATCC 13525, P. fl uorescens strain IAM 12022 (AK18 and AK45) and one other was 99% identical to B. subtilis strain NCDO 1769 (AK38). Our gnotobiotic study showed signifi cant diff erences in plant growth variables under control and inoculated conditions. In the present research, it was observed that the isolated strains had good plant growth promoting eff ects on rice.
Źródło:: Journal of Plant Protection Research; 2017, 57, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Changes in content of proteins and free amino acids in the foliage of mite-infested glasshouse cucumber and tomato treated with plant growth-promoting rhizobacteria [PGPR]
Autorzy:: Tomczyk, M
Kielkiewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/66880.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Tetranychus cinnabarinus
spider mite
soluble protein
plant growth-promoting rhizobacteria
protein
leaf
Tetranychus urticae
cucumber
amino acid
tomato
Opis:: Experimental cucumber and tomato plants were cultivated under glasshouse conditions with or without PGPR. Young plants were infested with spider mites (T. urticae - cucumber and T. cinnabarinus - tomato). Leaves were analysed for protein and amino acid concentration. In infested leaves of the cucumber cultivar, susceptible to spider mites (Corona), an important decrease in protein content occurred in both bacterized and nonbacterized plants. Amino acid content was higher in mile infested leaves and the presence of PGPR did not influence this phenomenon. The content of proteins was also studied in the leaves of the less susceptible cucumber cultivar (Aramis). Spider mile feeding caused a small decrease in their concentration. The presence of bacteria in the root system caused an increase of soluble proteins in the leaves. In infested leaves of the highly susceptible tomato cultivar (Romatos), cultivated without bacteria, an evident increase of amino acid content was found opposite to plants with PGPR. The protein concentration was also increased in injured leaves of this cultivar but the presence of bacteria in the root system of mite infested plants caused a decrease of these compounds in their leaves. lnjured foliage of the less susceptible tomato cultivar (Sionka) had a lower protein concentration in bacterised plants as compared to those nonbacterised and both controls.
Rośliny ogórka i pomidora uprawiano w warunkach szklarniowych, w obecności bakterii sfery korzeniowej (PGPR) i bez bakterii. Młode rośliny porażano przędziorkami (Tetranychus urticae Koch - ogórek i Tetranychus cinnabarinus Boisduval - pomidor). Liście porażonych roślin poddano analizie na zawartość białek rozpuszczalnych i aminokwasów. W porażonych liściach wrażliwej na przędziorki odmiany ogórka (Corona) zaobserwowano znaczny spadek zawartości białek zarówno w przypadku roślin uprawianych bez bakterii jak i w obecności PGPR. W porażonych liściach tej odmiany wzrastała natomiast zawartość wolnych aminokwasów. Badano również zawartość białek rozpuszczalnych w liściach mniej podatnej na przędziorki odmiany ogórka (Aramis). Żerowanie przędziorków powodowało kilkuprocentowe obniżenie zawartości białek, a obecność PGPR w sferze korzeniowej porażonych roślin prawie nie miała wpływu na ich poziom w liściach. W porażonych liściach wrażliwej na przędziorki odmiany pomidora (Romatos) stwierdzono, podobnie jak w przypadku ogórka, istotny wzrost zawartości wolnych aminokwasów. U porażonych roślin tej odmiany, uprawianych w obecności PGPR, obserwowano natomiast spadek zawartości aminokwasów w porównaniu z roślinami kontrolnymi nie traktowanymi bakteriami. W porażonych liściach tej odmiany zaobserwowano wzrost zawartości białek rozpuszczalnych zarówno u roślin z PGPR jak i bez bakterii. Nie obserwowano tego zjawiska u mniej podatnej na przędziorki odmiany pomidora Slonka.
Źródło:: Journal of Plant Protection Research; 2001, 41, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Antifungal activity of Bunium persicum essential oil and its constituents on growth and pathogenesis of Colletotrichum lindemuthianum
Autorzy:: Khaledi, N.
Hassani, F.
Powiązania:: https://bibliotekanauki.pl/articles/66144.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: plant disease
anthracnose
common bean
Phaseolus vulgaris
seed-borne disease
antifungal activity
Bunium persicum
essential oil
plant growth
pathogenesis
Colletotrichum lindemuthianum
fungi
fungal disease
pathogen
Opis:: Anthracnose disease caused by Colletotrichum lindemuthianum (Sacc. and Magnus) Lams- -Scrib is one of the most devastating seed-borne diseases of common bean (Phaseolus vulgaris L.). In the present study, we evaluated the antifungal activity of Bunium persicum essential oil (EO) and its main constituents on mycelial growth, sporulation and spore germination inhibition of C. lindemuthianum. The main objective of this study was to investigate the effect of EO and its main constituents on decreasing the activity of cell wall degrading enzymes (CWDEs) produced by C. lindemuthianum, which are associated with disease progress. Also, the effects of seed treatment and foliar application of EO and its main constituent, cuminaldehyde, on anthracnose disease severity was investigated. The essential oil of B. persicum, was obtained by using a clevenger apparatus and its major constituents were identified by gas chromatography-mass spectrometry (GC-MS). The EO was characterized by the presence of major compounds such as cuminaldehyde (37.7%), γ-terpinene (17.1%) and β-pinene (15.4%), which indicated antifungal effects against C. lindemuthianum. This pathogen did not grow in the presence of EO, cuminaldehyde and γ-terpinene, β-pinene at 1,500; 1,010 and 1,835 ppm concentrations, respectively. Also, sporulation and spore germination of C. lindemuthianum was completely inhibited by EO and cuminaldehyde. Synergistic effects of the main constituents showed that combing γ-terpinene with cuminaldehyde induced a synergistic activity against C. lindemuthianum and in combination with β-pinene caused an additive effect. Activities of pectinase, cellulase and xylanase, as main CWDEs, were decreased by EO and its main constituents at low concentration without affecting mycelial growth. Seed treatment and foliar application of peppermint EO and/or cuminaldehyde significantly reduced the development of bean anthracnose. We introduced B. persicum EO and constituents, cuminaldehyde and γ-terpinene, as possible control agents for bean anthracnose.
Źródło:: Journal of Plant Protection Research; 2018, 58, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Effect of cadmium mycelial growth and morphology of chosen phylloplane fungi
Autorzy:: Remlein-Starosta, D.
Powiązania:: https://bibliotekanauki.pl/articles/66223.pdf
Data publikacji:: 2003
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: phylloplane fungi
toxicity
plant protection
mycelium growth
cadmium
fungi
morphology
Źródło:: Journal of Plant Protection Research; 2003, 43, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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