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Tytuł:
Fusaria and other fungi taxa associated with rhizosphere and rhizoplane of lentil and sesame at different growth stages
Autorzy:
Abdel-Hafez, S.I.I.
Ismail, M.A.
Hussein, N.A.
Abdel-Hameed, N.A.
Powiązania:
https://bibliotekanauki.pl/articles/67219.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Fusarium
fungi
rhizosphere
rhizoplane
lentil
sesame
growth stage
Lens culinaris
Sesamum indicum
Opis:
Density and diversity of Fusarium species and other fungi associated with rhizosphere and rhizoplane of lentil and sesame plants at three different growth stages were investigated. Sixteen species of Fusarium were isolated from rhizosphere (13 species) and rhizoplane (11) of both plants studied. In lentil, 11 species were recorded from its rhizosphere (9 species) and rhizoplane (8). Fusarium species associated with lentil rhizoplane gave highest number of propagules at the first stage of plant growth while the ones of Fusarium associated with the rhizosphere produced the highest number at the second stage of growth. F. solani was the most common in the three growth stages. In addition, of two growth stages, F. culmorum and F. tricinctum were isolated from the rhizosphere while F. nygamai and F. verticillioides from the rhizoplane. The other species were recorded from only one growth stage of lentil plant. In sesame plants, rhizosphere yielded nine Fusarium species while rhizoplane gave only six from the three stages investigated. Stage I of sesame rhizosphere possessed the highest colony forming units of Fusarium. As the case for lentil, F. solani was the most common species in sesame rhizospere and rhizoplane. F. verticillioides and F. nygamai (in three different growth stages) followed by F. oxysporum and F. tricinctum (in two growth stages) were recorded using the dilution-plate and/or soil-plate methods from sesame rhizosphere soils. Rhizoplane Fusarium species of sesame plants were isolated at the three different growth stages with almost equal number of colony forming units. F. poae came after F. solani in its frequency since it was recovered from two growth stages. Several of the isolated species are well-known as pathogens to many cultivated plants. To the best of our knowledge, three species are recorded here for the first time in Egypt from the rhizosphere (F. acutatum), rhizoplane of sesame plants (F. longipes) and from rhizosphere of both lentil and sesame and rhizoplane of lentil (F. nygamai).
Źródło:
Acta Mycologica; 2012, 47, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skuteczność zabezpieczenia drewna przed działaniem grzybów powodujących siniznę wtórną - ocena metod starzeniowych
The efficiency ol wood preservatlon against funguses causlng the repeated blue staln - the estimation ol ageing methods
Autorzy:
Abram, A.
Powiązania:
https://bibliotekanauki.pl/articles/182787.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniki Budowlanej
Tematy:
drewno
ochrona drewna
grzyb
sinizna wtórna
badanie starzeniowe
metoda badań
skuteczność
badanie laboratoryjne
badanie poligonowe
środek dekoracyjno-ochronny
wyniki badań
wood
fungi
preservation effectiveness
blue stain
decorative and preservation agent
natural ageing
accelerated ageing
test method
test results
Opis:
Przedstawiono wyniki badań skuteczności zabezpieczenia drewna przed sinizną wtórną. Badano możliwość zastąpienia starzenia naturalnego przyspieszonym starzeniem laboratoryjnym. Badania prowadzono z wykorzystaniem czterech środków dekoracyjno-ochronnych dostępnych na rynku polskim.
The tests results of wood preservation effectiveness against repeated blue stain are presented. The possibility of replacing the natural ageing by artificial accelerated ageing was tested. Four decorative and preservative agents (available on the Polish market) were used during the tests.
Źródło:
Prace Instytutu Techniki Budowlanej; 2010, R. 39, nr 2, 2; 31-39
0138-0796
Pojawia się w:
Prace Instytutu Techniki Budowlanej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grzyby pasozytnicze roslin z rodzajow Betula L. i Salix L.
Parasitic fungi of the genera Betula and Salix
Autorzy:
Adamska, I
Powiązania:
https://bibliotekanauki.pl/articles/27875.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
drzewa lisciaste
choroby grzybowe
Betula
kora
Slowinski Park Narodowy
czynniki chorobotworcze
Salix
maczniak prawdziwy
brzoza
liscie
grzyby zasiedlajace liscie
wierzba
plamistosc lisci
rdza brzozy
grzyby chorobotworcze
deciduous tree
fungal disease
bark
Slowinski National Park
pathogenic factor
powdery mildew
birch
leaf
fungi colonizing leaf
willow
leaf spot disease
rust disease
pathogenic fungi
Opis:
In the years 2001-2004, the occurrence of parasitic fungi of plants of the genera Betula and Salix growing in the Słowiński National Park was investigated. The plant species examined included B. pubescens, B. pendula, S. aurita, S. caprea, S. cinerea, S. fragilis, and S. repens. Plants of the genus Betula were affected by 9 species of parasiting fungi. In Poland, three of them (Microsphaera ornata var. europaea, Phyllactinia guttata, Melampsoridium betulinum) occur commonly, five (Asteroma leptothyrioides, Discula betulina, Fusicladium betulae, Phyllosticta betulina, Septoria betulina) are rare, and Septoria betulae-odoratae has not been recorded to date. Three species, Asteroma leptothyrioides, Fusicladium betulae, Phyllosticta betulina), were found on new plant hosts. Plants of the genus Salix were attacked by 8 species of parasiting fungi. Four of them (Melampsora allii-fragilis, M. caprearum, M. epitea, Uncinula adunca var. adunca) are common in Poland, four (Marssonina salicicola, Phyllosticta salicicola, Septoria salicicola, Trimmatostroma betulinum) rarely occur here. Uncinula adunca var. adunca, Marssonina salicicola, Phyllosticta salicicola, Septoria salicicola and Trimmatostroma betulinum were associated with the plant species not reported earlier to be their hosts.
W latach 2001-2004 w Słowińskim Parku Narodowym badano występowanie grzybów pasożytniczych zasiedlających rośliny z rodzajów Betula i Salix. Badanymi gatunkami były: B. pubescens, B. pendula, S. aurita, S. caprea, S. cinerea, S. fragilis, and S. repens. Rośliny z rodzaju Betula były zasiedlane przez 9 gatunków grzybów pasożytniczych. Trzy spośród nich (Microsphaera ornata var. europaea, Phyllactinia gutata i Melampsoridium betulinum) występują pospolicie na terenie Polski, pięć jest rzadkich (Asteroma leptothyrioides, Discula betulina, Fusicladium betulae, Phyllosticta betulina i Septoria betulina), a Septoria betulae-odoratae została znaleziona po raz pierwszy. Dla trzech gatunków stwierdzono nowych żywicieli (Asteroma leptothyrioides, Fusicladium betulae i Phyllosticta betulina). Rośliny z rodzaju Salix zasiedlało 8 gatunków grzybów pasożytniczych. Cztery spośród nich są pospolite dla Polski (Melampsora allii-fragilis, M. caprearum, M. epitea i Uncinula adunca var. adunca), a cztery występują rzadko (Marssonina salicicola, Phyllosticta salicicola, Septoria salicicola i Trimmatostroma betulinum). Uncinula adunca var. adunca, Marssonina salicicola, Phyllosticta salicicola, Septoria salicicola i Trimmatostroma betulinum zostały znalezione na nowych żywicielach.
Źródło:
Acta Agrobotanica; 2005, 58, 2; 417-428
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grzyby pasożytnicze roślinności oczek śródpolnych na terenach użytkowanych rolniczo
Parasitic fungi of intrafield ponds vegetations in terrains used agriculturally
Autorzy:
Adamska, I.
Czerniawska, B.
Dzięgielewska, M.
Powiązania:
https://bibliotekanauki.pl/articles/126001.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
grzyby pasożytnicze
Alternaria
Apiocarpella
Ascochyta
Coniothyrium
Leptosphaeria
Paraphaeosphaeria
Puccinia
Sphaerellopsis
Septoria
Stagonospora
Carex
Juncus
Stellaria
Lysimachia
oczka śródpolne
parasitic fungi
intrafield pond
Opis:
Wody oczek śródpolnych charakteryzują się dużym dopływem biogenów, lecz roślinność skupiająca się na ich brzegach jest uboga gatunkowo. Warunki siedliskowe panujące w takich obszarach (zagłębienie terenu, duże zwarcie roślin, podwyższona wilgotność powietrza oraz wiatry) sprzyjają powstawaniu i roznoszeniu zarodników grzybów. Jednakże na rośliny oczek śródpolnych działają pestycydy (m.in. fungicydy i herbicydy) stosowane w uprawach zbóż. Wywierają one duży wpływ zarówno na skład roślinny, jak i grzybowy tych siedlisk. Celem badań było określenie liczby gatunków grzybów zasiedlających roślinność oczek śródpolnych na obszarach silnie użytkowanych rolniczo i porównanie ich składu gatunkowego ze składem notowanym nad jeziorami oligotroficznymi. Badania prowadzono wokół jezior i oczek śródpolnych położonych w obszarach rolniczych koło miejscowości Bobolice. Materiałem badawczym były rośliny z rodzajów Carex (C. disticha, C. nigra, C. paniculata i C. sp.), Juncus (J. conglomeratus i J. effusus), Lysimachia vulgare, Rumex sanguineus i Stellaria crassifolia. W trakcie analiz stwierdzono obecność 20 taksonów grzybów, wśród których dominowały grzyby anamorficzne (14 gatunków). Mimo korzystnych warunków siedliskowych w badanym obszarze nie stwierdzono obecności organizmów z rzędów Peronosporales i Erysiphales. Grzyby z Uredinales reprezentowane były wprawdzie tylko przez 3 gatunki, ale ich rozprzestrzenienie było bardzo duże. Rodzajem reprezentowanym przez największą liczbę gatunków była Septoria (4 taksony). Większość grzybów występowała w badanym materiale z dużą częstotliwością. Zastanawiający był niewielki udział wielożywicielowych saprotrofów (Alternaria alternata i gatunków z rodzaju Cladosporium). Grzybami rzadziej notowanymi w Polsce, a stwierdzonymi nad badanymi oczkami, były: Coniothyrium psammae, Leptosphaeria juncina, Paraphaeosphaeria michotii, Septoria bresadoleana, S. rumicis i Stagonospora innumerosa.
The waters of intrafield ponds are characterised by a large tributary of nutrients, but vegetation concentrated on their banks is of poor quality. Habitat conditions reigning in such areas (depression of the terrain, large density of plants, raised moisture of the air and winds) favour the formation and spreading of the fungus’ spores. However, pesticides influence on the plants of intrafield ponds (ex. fungicides and herbicides) applied in cultivation of cereals. They exert an essential influence both on the plant composition, as well as fungic of these habitats. The aim of the research was to determine the number of the fungus species colonizing the vegetation ofintrafield ponds in areas used highly agriculturally and the comparison of their rate composition with the composition estimated on oligotrophic lakes. The research was conducted around lakes and intrafield ponds situated in agricultural areas near the village Bobolice. The research material was plants from the species Carex (C. disticha, C. nigra, C. paniculata and C. sp.), Juncus (J. conglomeratus and J. effusus), Lysimachia vulgare, Rumex sanguineus and Stellaria crassifolia. The presence of 20 taxons of fungus was affirmed during of the analyses, among which anamorphic fungus (14 species) dominated. In spite of profitable habitative conditions the presence of organisms from orders Peronosporales and Erysiphales was not affirmed in the studied area. Fungi from Uredinales were represented only by 3 species, but their spread was very high. Septoria (4 taxons) was the genus represented by the largest number of species. The majority of fungus appeared in the studied material with a high frequency. Striking was the small participation of multi-host saprotrophs (Alternaria alternata and species from the genus Cladosporium). Fungus appearing in Poland more seldom, and affirmed over the studied ponds, were: Coniothyrium psammae, Leptosphaeria juncina, Paraphaeosphaeria michotii, Septoria bresadoleana, S. rumicis and Stagonospora innumerosa.
Źródło:
Proceedings of ECOpole; 2010, 4, 1; 93-98
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microscopic Fungi of the Littoral Zone in Selectcd Water Bodies of the Pojezierze Bobolickie Lakeland and the Równina Gryficka Plain
Grzyby mikroskopijne literału wybranych zbiorników wodnych Pojezierza Bobolickiego i Równiny Gryfickiej
Autorzy:
Adamska, I.
Czerniawska, B.
Dziegielewska, M.
Powiązania:
https://bibliotekanauki.pl/articles/389466.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
grzyby
grzyby pasożytnicze
Ascochyta
Comothyrium
Ktietmeola
Leptosphaeria
Paraphaeosphaeria
Phaeosphaeria
Phyllosticta
Puccinia
Sphaerellopsis
Septoria
Stagonospora
Carez
Junats
Bobolice
Gościno
oczko śródpolne
oligotroficzne
fungi
parasitic fungi
Coniothyrium
Kuehneola
Phasnsphaeria
Carex
Juncus
lake nitrified
nitrified pond
oligotrophic
Opis:
The occurrence of parasitic fungi colonising the vegetation in the littoral zone of selected water bodies (two nitrified ponds, a class I lake and a class III lake) was studied in the period between 2006 and 2008. The study area comprised the Pojezierze Bobolickie lakeland and the Równina Gryficka plain. A total of 64 plant species partly immersed in water or overgrowing the land were examined. The material was colonised by 90 species of fungi and fungi-like organisms. Anamorphic fungi predominated. The greatest number of fungi was represented by fungi of the genera Septoria and Phyllosticta. Only five species (Cladospcirium sp.. Leptosphaeria caricis, Puccinia caricina, P. dioicae and Sphaerellopsis filum) occurred in the littoral zones of all the water bodies. The majority of fungi observed in the study (63 % of species) were common in Europe while 33 species were identified as rare. Fungal species recorded in the study did not pose a pathogenic threat to crop plants. Diversified numbers of species found in individual water bodies resulted from the diversified species composition of the vegetation. Agrotechnical and chemical treatment conducted in adjacent fields and directly in the littoral zone of the water bodies considerably influence the species composition of fungi of nitrified ponds.
W latach zasiedlających roślinność literału wybranych zbiorników wodnych (oczka śródpolnego oraz jezior o wodach I i III klasy czystości). Teren badań obejmował Pojezierze Bobolickie i Równinę Gryficką. Badaniom poddano 64 gatunki roślin częściowo zanurzone w wodzie lub porastające ląd. Analizowany materiał zasiedlało 90 gatunków grzybów i FLO. Wśród nich dominowały grzyby anamorficzne. Największa liczba gatunków reprezentowała grzyby z rodzajów Septoria i Phyllosticta. Tylko pięć gatunków (Cladosporium sp" Leptosphaeria curicis, Pucciniu caricina, P. dioicae Sphaereilopsis filwri) występowało równocześnie w litoralach wszystkich badanych zbiorników. Większość znalezionych grzybów (63 % gatunków) było pospolitych dla Europy, a 33 uznano za rzadkie. Rozpoznane gatunki grzybów nie stanowiły zaerożema chorobowego dla roślin uprawnych. Powodem zróżnicowanej liczby gatunków znajdywanych w poszczególnych zbiornikach był zróżnicowany skład gatunkowy roślinności. Na skład gatunkowy grzybów oczek śródpolnych duży wpływ mają zabiegi agrotechniczne i chemiczne prowadzone na przyległych polach oraz bezpośrednio w obrębie literału zbiornika.
Źródło:
Ecological Chemistry and Engineering. A; 2010, 17, 8; 885-892
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Schizothyrioma ptarmicae [Helotiales, Ascomycota], a rare European fungus newly found in Poland
Autorzy:
Adamska, I
Powiązania:
https://bibliotekanauki.pl/articles/57160.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
parasite
Schizothyrioma ptarmicae
Helotiales
locality
Polska
Ascomycota
fungi
occurrence
leaf
Slowinski National Park
Achillea ptarmica
morphological property
Opis:
The morphological properties of Schizothyrioma ptarmicae (Helotiales, Ascomycota), a fungus known from a single locality in Poland and infrequently reported from Europe, are described and illustrated. Schizothyrioma ptarmicae is a parasite of leaves of Achillea ptarmica. It has been found in the Myrico-Saliceto auritae and Cirsio-Polygonetum plant associations of the Słowiński National Park. Additionally, the properties of the specimens of S. ptarmicae collected were compared with those of S. aterridium, the only other member of the genus Schyzothyrioma.
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Species of anamorphic fungi rare and new for Poland
Rzadkie i nowe dla Polski gatunki grzybów anamorficznych
Autorzy:
Adamska, I.
Powiązania:
https://bibliotekanauki.pl/articles/67767.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
rare species
new species
fungi
anamorphic fungi
Morinia
Seimatosporium
Septoria
parasitic fungi
Slowinski National Park
Polska
Opis:
Morinia pestalozzioides, Seimatosporium hypericinum, Septoria artemisiae, S. artemisiaemaritimae, S. achilleicolaand S. symphyti, fungi not recorded in Poland before, are described and illustrated. The species were found during studies on the occurrence of parasitic fungi conducted in selected sites in the Słowiński National Park and in the Western Pomerania between 2001 and 2004.
W latach 2001-2004 w wybranych stanowiskach Słowińskiego Parku Narodowego i Pomorza Zachodniego prowadzono badania nad występowaniem grzybów pasożytniczych. W trakcie badań znaleziono Morinia pestalozzioides, Seimatosporium hypericinum, Septoria artemisiae, S. artemisiae-maritimae, S. achilleicolai S. symphyti, gatunki nowe dla Polski. W artykule opisano i zilustrowano znalezione gatunki grzybów.
Źródło:
Acta Mycologica; 2007, 42, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytochemical and Antifungal Activity of Leaf Extracts of Corchorus olitorius and Gongronema latifolium on Fungi Associated with Post-Harvest Deterioration of Maize (Zea mays) Seeds in Oban Community, Nigeria
Autorzy:
Akwaji, P. I.
Umana, E. J.
Okon, E. I.
Powiązania:
https://bibliotekanauki.pl/articles/1182869.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
phytochemical
antifungal
extracts
maize
fungi
Opis:
This study was carried out to investigate the fungal pathogens associated with post-harvest deterioration of maize seeds in storage in Oban community, Cross River State, Nigeria, determine the effect of the pathogens on the nutritional content of the maize seeds through biochemical analysis as well as evaluate the phytochemical contents and antifungal activity of ethanolic leaf extracts of Corchorus olitorius and Gongronema latifolium in controlling the isolated fungi in vitro. The fungal pathogens isolated as the causative agents of post-harvest deterioration of maize seeds in this study were Penicillium sp., Fusarium sp., Aspergillus sp., and Rhizopus stolonifer. The result of biochemical analysis of fungal infected and non-infected maize seeds carried out showed a significant increase (P ≤ 0.05) in the moisture content of the fungal infected maize seeds as compared to healthy ones (control), while there was a significant decrease (P ≤ 0.05) in the crude fibre, fat, ash, protein and carbohydrate contents of the fungal infected maize seeds as compared to the healthy ones (control). For the in vitro antifungal assay, various concentrations of the extracts ranging from 20g/200ml, 40g/200 ml, 60g/200 ml, 80g/200 ml and 100g/200 ml were separately added to PDA media. Results shows that at 60g/200 ml and 80g/200 ml and 100g/200 ml concentrations, ethanolic leaf extracts of C. olitorius completely inhibited the radial growth of Penicillium sp., Fusarium sp., Aspergillus sp., and R. stolonifer after seven days observation period while those of ethanolic extracts of G. latifolium completely inhibited the redial growth of the fungal pathogens at 40g/200 ml, 60g/200 ml, 80g/200 ml and 100g/200 ml concentrations. Results, however, shows that the extracts had a significant effect (P ≤ 0.05) on the radial growth of the fungal pathogens at all the different concentrations tested as compared with the control. Phytochemical screening of the extracts revealed the presence of cardiac glycosides, reducing sugars, flavonoids, saponnins, tannins, hydocyanin, and anthraquinones with traces of alkaloids.
Źródło:
World Scientific News; 2016, 53, 3; 157-177
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro antifungal activity of three Saudi plant extracts against some phytopathogenic fungi
Autorzy:
Al-Askar, A.A.A.
Powiązania:
https://bibliotekanauki.pl/articles/66424.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
in vitro
antifungal activity
plant extract
phytopathogenic fungi
fungi
Alternaria alternata
Fusarium oxysporum
Phoma destructiva
Rhizoctonia solani
Sclerotium rolfsii
camel thorn
Alhagi maurorum
caper
Flinders rose zob.caper
Capparis spinosa
pomegranate
Punica granatum
Opis:
The antifungal activities of ethanolic extracts of three Saudi plants; camel thorn (Alhagi maurorum Medic.), caper (Capparisspinosa L.), and pomegranate (Punica granatum L.) were investigated in vitro against Alternaria alternata, Fusarium oxysporum, Phomadestructiva, Rhizoctonia solani, and Sclerotium rolfsii at concentrations of 0, 3, 6, and 9% (v/v). All tested plant extracts; seeds, roots, and rinds had different degrees of antifungal activity against the tested fungi. When compared with the control, the highest antifungal activity was recorded for camel thorn seeds extract at a concentration of 9%, while, pomegranate rinds extract at 9% came in second. Camel thorn rinds extract came in last even when used at a high concentration. The ethanolic extract of camel thorn seeds may be recommended as a potent bio-fungicide. Extensive studies should be undertaken for the ethanolic extract of camel thorn seeds as a strong antifungal agent against fungal plant diseases.
Źródło:
Journal of Plant Protection Research; 2012, 52, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhancement of fungal DNA templates and PCR amplification yield by three types of nanoparticles
Autorzy:
Al-Dhabaan, F.A.
Yousef, H.
Shoala, T.
Shaheen, J.
El Sawi, Y.
Farag, T.
Powiązania:
https://bibliotekanauki.pl/articles/65369.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
plant pathology
detection
identification
plant pathogen
toxigenic fungi
improvement
specificity
efficiency
polymerase chain reaction
Alternaria alternata
DNA extraction
nanoparticle
Rhizoctonia solani
nanobiotechnology
Opis:
Nanodiagonastic methods in plant pathology are used for enhancing detection and identification of different plant pathogens and toxigenic fungi. Improvement of the specificity and efficiency of the polymerase chain reaction (PCR) by using some nanoparticles is emerging as a new area of research. In the current research, silver, zinc, and gold nanoparticles were used to increase the yield of DNA for two plant pathogenic fungi including soil-borne fungus Rhizoctonia solani and toxigenic fungus Alternaria alternata. Gold nanoparticles combined with zinc and silver nanoparticles enhanced both DNA yield and PCR products compared to DNA extraction methods with ALB buffer, sodium dodecyl sulfate, ALBfree from protinase K, ZnNPs and AgNPs. Also, by using ZnNPs and AgNPs the DNA yield was enhanced and the sensitivity of random amplified polymorphic DNA (RAPD) PCR products was increased. Application of nanomaterials in the PCR reaction could increase or decrease the PCR product according to the type of applied nanometal and the type of DNA template. Additions of AuNPs to PCR mix increased both sensitivity and specificity for PCR products of the tested fungi. Thus, the use of these highly stable, commercially available and inexpensive inorganic nano reagents open new opportunities for improving the specificity and sensitivity of PCR amplicon, which is the most important standard method in molecular plant pathology and mycotoxicology.
Źródło:
Journal of Plant Protection Research; 2018, 58, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cichorin A: a benzo-isochromene from Nypa fruticans endophytic fungus Pestalotiopsis sp.
Cychoryna A: benzo-izochromen z Pestalotiopsis sp. - endofitycznego grzyba Nypa fruticans
Autorzy:
Alade, G.O.
Moody, J.O.
Awotona, O.R.
Lai, D.
Adesanya, S.A.
Proksch, P.
Powiązania:
https://bibliotekanauki.pl/articles/71140.pdf
Data publikacji:
2017
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
fungi
cichorin A
benzo-isochromene
Nypa fruticans
endophytic fungi
Pestalotiopsis
bioactive compound
Opis:
Introduction: Similar bioactive metabolites are obtainable from host plants as well as the endophytic fungi residing in them. Objective: The aim of the study is to isolate the major compound(s) from the endophytic fungus residing in Nypa fruticans Wurmb, Arecaceae family. Methods: Purification of the ethyl acetate extract of the isolated endophytic fungus was performed by employing different chromatographic techniques and structural elucidation of the isolated compound was carried out using UV and NMR spectroscopic methods. Results: Cichorin A was isolated from the ethyl acetate extract of the solid rice cultures of Pestalotiopsis sp., isolated from N. fruticans, collected in Nigeria. Conclusions: This compound is being isolated for the first time from a fungus; it is commonly isolated from the plant Cichorium intybus L. (Compositae).
Wstęp: Z roślin – gospodarzy oraz z ich endofitycznych grzybów można otrzymać podobne aktywne metabolity. Cel: Celem prowadzonych badań było wyizolowanie głównego związku/związków z endofitów grzybowych zasiedlających nipę krzewinkową (palmę krzaczastą) Nypa fruticans Wurmb (Arecaceae). Metody: Oczyszczenie ekstraktu z izolowanych endofitów grzybowych, otrzymanego za pomocą octanu etylu, przeprowadzono za pomocą różnych technik chromatograficznych . Wyjaśnienie struktury wyizolowanego związku przeprowadzono metodą spektoskopii NMR. Wyniki: Z ekstraktu (otrzymanego za pomocą octanu etylu) z kultur Pestalotiopsis sp. (izolowanych z N. fruticans z Nigerii), hodowanych na pożywkach stałych ryżowych, otrzymano cychorynę A. Wnioski: Związek ten, powszechnie izolowany z rośliny Cichorium intybus L. (Compositae), po raz pierwszy został wyizolowany z grzybów.
Źródło:
Herba Polonica; 2017, 63, 4
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection of airborne microbes in a composting facility by cultivation based and cultivation-independent methods
Autorzy:
Albrecht, A
Witzenberger, R.
Bernzen, U.
Jackel, U.
Powiązania:
https://bibliotekanauki.pl/articles/50677.pdf
Data publikacji:
2007
Wydawca:
Instytut Medycyny Wsi
Tematy:
composting process
airborne microbe
humification
cultivation-independent method
degradation
organic material
bacteria
fungi
counting efficiency
waste management
detection
compost
Opis:
Standard methods for quantifi cation of airborne bacteria are based on cultivation and counting of grown colonies. From complex natural environments it is known that only a small fraction of the total number of cells can be cultivated on routinely used agar-media. Direct microscopic cell counting after DNA-staining usually generates higher concentrations of one to two magnitudes. The objective of the presented study was to compare the concentrations of airborne bacteria sampled in a composting facility by using for any sample the cultivation on trytic soy agar (TSA) – agar, as well as direct counting after DAPI-staining. The concentrations after counting grown colonies were within a range of 105-107 cfu m-3. Concentrations of direct counted cells ranged between 106-109 microbes m-3. In these comparative measurements only 1.5-15.3% of the airborne bacterial cells enumerated by direct counting formed countable colonies after incubation on TSA-agar. Obviously, cultivation based methods underestimate the real amount of airborne microbes. In addition, from literature it is known that inactive or even dead cells can also have the potential to cause health effects. Consequently, a risk assessment based only on measuring colony forming units may, in some cases, not be sufficient.
Źródło:
Annals of Agricultural and Environmental Medicine; 2007, 14, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mikoryza siewek i sadzonek drzew leśnych w odnowieniach na powierzchniach zrębowych
Mycorrhiza of forest tree seedlings in clear-cut regenerations
Autorzy:
Aleksandrowicz-Trzcińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/1016143.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
grzyby mikoryzowe
zreby
sadzonki
mikoryza
lesnictwo
siewki
drzewa lesne
ectomycorrhizal fungi
regeneration
clear−cut
Opis:
Biotic and abiotic factors affecting the development of ectomycorrhizal fungal communities in forest regenerations on clear−cuts were discussed basing on the relevant literature.
Źródło:
Sylwan; 2007, 151, 11; 3-9
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antifungal activity of sodium chloride on Saprolegnia diclina and Aphanomyces sp.
Autorzy:
Ali, E H
Powiązania:
https://bibliotekanauki.pl/articles/67745.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
antifungal activity
sodium chloride
Saprolegnia diclina
Aphanomyces
zoosporic fungi
fungi
salinity
morphogenesis
biochemical activity
sporulation
Opis:
Sixteen identified and three unidentified species belonging to six genera of zoosporic fungi were isolated from forty water samples which were collected from different fish and fish hatcheries farms at Abbassa city, Sharkiya governorate, Egypt, using sesame seeds baiting technique at 20±2°C. Saprolegnia and Achlya contributed the broadest spectra of species diversity amongst the other genera of zoosporic fungi. Saprolegnia diclina and Aphanomyces sp. were the most prevalent species of zoosporic fungi. The abundance of zoosporic fungal species in these aquacultures was correlated with some physicochemical characteristics of the water samples. The two dominant species of zoosporic fungi were tested for their tolerance of NaCl solution and its impact on some morphological and metabolic activities of these fungi. Saprolegnia diclina tolerated concentrations of NaCl solution till 12000 μg/ml whereas the maximum resistance of Aphanomyces sp. was 8000 μg/ml. The examined morphological aspects of the two studied fungal species, which included the colony diameters, the vegetative hyphae, zoosporogenesis, zoospores discharge, sexual reproductive structures and gemmae formation, were generally affected depending upon the tested fungal species and the applied dose of NaCl solution. The low treatments of NaCl solution were significantly stimulative compared with the control for protease production by S. diclina but higher doses were significantly suppressive. A significant decline in protease activity at all applications was found when Aphanomyces sp. was treated with NaCl solution. The total free amino acids and total protein content of S. diclina and Aphanomyces sp. mycelia were almost significantly increased relative to untreated controls at the low dose of NaCl solution and they were significantly dropped at the higher concentrations by the two zoosporic fungi.
Źródło:
Acta Mycologica; 2009, 44, 1; 125-138
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodiversity of zoosporic fungi in polluted water drainages across Niles Delta region, Lower Egypt
Autorzy:
Ali, E.H.
Powiązania:
https://bibliotekanauki.pl/articles/67773.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
biodiversity
zoosporic fungi
fungi
polluted water
water pollution
drainage
Nile River
Lower Egypt
Egypt
Nile Delta
Opis:
Thirty-four identified in addition to five unidentified species appertaining to ten genera of zoosporic fungi were identified and isolated from eighty four polluted water samples, which were randomly collected from different polluted sites of the water drainages along the Niles Delta in Lower Egypt. Baiting sesame seeds culture technique was employed at 20±2°C for the recovery of zoosporic fungi. The genera; Pythium and Saprolegnia (8 and 7 zoosporic fungal species, respectively) showed the broadest spectra of species diversity whereas Aqualinderella was only represented by one species (A. fermentans). Saprolegnia delica and Dictyuchus carpophorus(the greatest fungal populations) were the most dominant isolated zoosporic fungal species where they were highly occurred especially at the hyperpolluted waters with the heavy metals. These two species could be considered as indicators for the response of the structure and function of microbial communities for water pollution. Several zoosporic fungal species were rarely encountered. Both Aqualinderella fermentansand Pythium rostratumwere recovered in moderate frequency of occurrence. Water samples which had high concentrations in heavy metals were the poorest in the species diversity of zoosporic fungi. Despite that, fungal species belonging to the family Saprolegniaceaeflourished in hyper polluted water samples whilst those belonging to the family Pythiaceae predominated in more diluted water samples. Also, the prevalent species; S. delica andD. carpophoruswere not affected by heavy metals concentrations being as indicators for water pollution with the heavy metals. pH values of the polluted water samples had no influence on the occurrence of zoosporic fungi. Water samples characterized by high organic matter content and low total soluble salts were the richest in zoosporic fungal species.
Źródło:
Acta Mycologica; 2007, 42, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł

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