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    Wyświetlanie 1-4 z 4
    Tytuł:
    Epicoccum nigrum link as a potential biocontrol agent against selected dermatophytes
    Autorzy:
    Piecuch, Agata
    Ogórek, Rafał
    Dyląg, Mariusz
    Cal, Magdalena
    Przywara, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/11543325.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Epicoccum nigrum
    marine environment
    Epicoccum purpurascens
    endophytic fungi
    secondary metabolite
    fungi
    toxicity
    Opis:
    Epicoccum nigrum Link is well known for producing biologically-active substances with activities against prokaryotic and eukaryotic cells. The major goal of this study was to assess E. nigrum as a potential in vitro agent against selected species of dermatophytes. The effects of the types of media used in this study on the interactions between the microscopic fungi were also examined. Epicoccum nigrum’s bioactive metabolites exhibited a strong growth inhibitory effect against the dermatophytes, suggesting its potential as a biocontrol agent. Notably, the strength of these interactions was dependent on the type of the medium. These secondary metabolites are not toxic against the higher eukaryotic organisms, which was further demonstrated by using the Galleria mellonella model.
    Źródło:
    Acta Mycologica; 2020, 55, 1; 5516
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary study of endophytic fungi in timothy (Phleum pratense) in Estonia
    Autorzy:
    Varvas, T.
    Kasekamp, K.
    Kullman, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/67480.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    endophytic fungi
    fungi
    timothy
    Phleum pratense
    agricultural grass
    grass
    isolate identification
    Estonia
    Opis:
    Timothy (Phleum pratense L.) is an important agricultural grass in Europe and North America, but there is little research into the occurrence and abundance of fungal endophyte species associated with this grass. The aim of this study was to identify fungal endophytes living within P. pratense and to determine if additional moisture applied during the growing season increases the diversity of endophytic fungi. We studied 58 isolates obtained from surface-sterilised blades of 60 P. pratense plants collected from Rõka Free Air Humidity Manipulation experimental plots (FAHM), Estonia. Morphological and molecular methods were used for isolate identification. As a result, 45 strains from 10 different taxa were identified, all belonging to Ascomycota. Five species were found to be new to P. pratense.
    Źródło:
    Acta Mycologica; 2013, 48, 1
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    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:
    Endophytic colonisation of tomato by the entomopathogenic fungus Beauveria bassiana: the use of different inoculation techniques and their effects on the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae)
    Autorzy:
    Allegrucci, N.
    Velazquez, M.S.
    Russo, M.L.
    Perez, E.
    Scorsetti, A.C.
    Powiązania:
    https://bibliotekanauki.pl/articles/65417.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    endophytic fungi
    tomato
    entomopathogen
    fungi
    Beauveria bassiana
    inoculation method
    tomato leafminer
    Tuta absoluta
    Lepidoptera
    Gelechiidae
    biological control
    Solanum lycopersicum
    Opis:
    Fungal entomopathogens can naturally regulate populations of various insects. The entomopathogen Beauveria bassiana (Bals.- Criv.) Vuill. is also able to endophytically colonize different plants. Endophytic colonization by entomopathogens may provide a source of indirect interactions between fungi and insects and has been associated with the ability of the fungus to control insect pests. The tomato leaf miner, Tuta absoluta (Meyrick) is considered one of the most devastating pests of tomato (Solanum lycopersicum L.) and its difficult control is due to its miner habit, short life cycle, and high reproductive capacity. The aims of this study were: (i) to use three different techniques, i.e. leaf spraying, seed immersion and root dipping, for the endophytic inoculation of B. bassiana in tomato plants; and (ii) to assess the effect of B. bassiana on tomato leaf consumption and mortality of T. absoluta after inoculation. The percentage of colonization by B. bassiana was assessed 7, 14 and 28 days after inoculation. All inoculation techniques employed allowed the recovery of B. bassiana, although our results showed significant differences between techniques. Leaf spraying was the most effective, with the highest percentage of colonization recorded 7 days after inoculation. We also evaluated (i) the effect on the mortality of T. absoluta by direct contact with conidia of B. bassiana, and (ii) the effect on tomato leaf consumption and mortality by indirect contact through ingestion of inoculated plant tissues with B. bassiana. Mortality bioassays showed that B. bassiana infected T. absoluta, either by direct contact or indirectly, via ingestion of inoculated tomato leaves. Direct contact showed a higher percentage of mortality and a lower median survival time (MST) than indirect contact. Significant differences in the mortality percentages of T. absoluta after exposure with B. bassiana were found among the treatments and the control. Our results suggest that the endophytic inoculation of B. bassiana in tomato crops provides the basis for further investigation, which should focus on the virulence of the endophytic B. bassiana against T. absoluta.
    Źródło:
    Journal of Plant Protection Research; 2017, 57, 4
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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