Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditions

A total of 297 endophytic fungi were isolated from 1728 leaf and stem fragments collected about twenty and forty days after germination from soybean (Glycine max (L.) Merril) plants grown in the field and a greenhouse. The fungi belonged to eight groups, six dematiaceous genera (Alternaria, Cladospo...

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Main Authors: Ida Chapaval Pimentel, Chirlei Glienke-Blanco, Juarez Gabardo, Rodrigo Makowiecky Stuart, João Lúcio Azevedo
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2006-09-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600003
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spelling doaj-e867dfe42db54e559be4681bd27cf9112020-11-25T01:14:03ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242006-09-0149570571110.1590/S1516-89132006000600003Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditionsIda Chapaval PimentelChirlei Glienke-BlancoJuarez GabardoRodrigo Makowiecky StuartJoão Lúcio AzevedoA total of 297 endophytic fungi were isolated from 1728 leaf and stem fragments collected about twenty and forty days after germination from soybean (Glycine max (L.) Merril) plants grown in the field and a greenhouse. The fungi belonged to eight groups, six dematiaceous genera (Alternaria, Cladosporium, Chaetomium, Curvularia, Drechslera and Scopulariopsis) and the non-dematiaceous genera Acremonium, Aspergillus, Colletotrichum, Fusarium, Paecilomyces and Penicillium along with some Mycelia sterilia.. There were qualitative and quantitative differences in the type and number of isolates obtained from greenhouse and field-grown plants, with more isolates being obtained from the latter. No difference was found in the number of fungi isolated from leaves and stems irrespective of where the plants was grown. For was field-grown plants, the number of isolates decreased as the plants aged and more fungi were found in tissues near the soil, while for greenhouse-grown plants the number of isolates increased as the plants aged but in this case no more fungi were isolated from those tissues nearer the soil. These results could have biotechnological relevance for the biological control of pests or plant growth promotion.<br>A partir de 1728 fragmentos de hastes e folhas de soja (Glycine max (L.) Merril). provenientes de plantas do campo e de casa de vegetação, coletadas cerca de 20 e 40 dias após a germinação das sementes, 297 fungos endofíticos foram isolados. Os gêneros encontrados foram: Alternaria, Cladosporium, Curvularia, Chaetomium, Scopulariopsis, Drechslera (todos dematiáceos) além de Colletotrichum, Fusarium, Acremonium, Aspergillus, Penicillium, Paecilomyces e Mycelia sterilia. Foram detectadas diferenças qualitativas e quantitativas entre os isolados, em relação a micobiota de hospedeiros provenientes do campo e de casa de vegetação com maior frequência de fungos isolados de plantas no campo em comparação com as de casa de vegetação. Houve diminuição da frequência de fungos com a idade das plantas crescidas no campo, ocorrendo o inverso com as da casa de vegetação, mas em ambos os casos, não houve diferença no número de fungos isolados de hastes e de folhas. Houve em plantas crescidas no campo uma maior incidência nas regiões próximas ao solo o que não ocorreu nas plantas provenientes da casa de vegetação. Os resultados podem ser de utilidade do ponto de vista biotecnológico pelo uso de endófitos introduzidos deliberadamente em plantas visando o controle biológico de pestes ou promoção de crescimento vegetal.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600003Endophytic fungiSoybeanBiological control
collection DOAJ
language English
format Article
sources DOAJ
author Ida Chapaval Pimentel
Chirlei Glienke-Blanco
Juarez Gabardo
Rodrigo Makowiecky Stuart
João Lúcio Azevedo
spellingShingle Ida Chapaval Pimentel
Chirlei Glienke-Blanco
Juarez Gabardo
Rodrigo Makowiecky Stuart
João Lúcio Azevedo
Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditions
Brazilian Archives of Biology and Technology
Endophytic fungi
Soybean
Biological control
author_facet Ida Chapaval Pimentel
Chirlei Glienke-Blanco
Juarez Gabardo
Rodrigo Makowiecky Stuart
João Lúcio Azevedo
author_sort Ida Chapaval Pimentel
title Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditions
title_short Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditions
title_full Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditions
title_fullStr Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditions
title_full_unstemmed Identification and colonization of endophytic fungi from soybean (Glycine max (L.) Merril) under different environmental conditions
title_sort identification and colonization of endophytic fungi from soybean (glycine max (l.) merril) under different environmental conditions
publisher Instituto de Tecnologia do Paraná (Tecpar)
series Brazilian Archives of Biology and Technology
issn 1516-8913
1678-4324
publishDate 2006-09-01
description A total of 297 endophytic fungi were isolated from 1728 leaf and stem fragments collected about twenty and forty days after germination from soybean (Glycine max (L.) Merril) plants grown in the field and a greenhouse. The fungi belonged to eight groups, six dematiaceous genera (Alternaria, Cladosporium, Chaetomium, Curvularia, Drechslera and Scopulariopsis) and the non-dematiaceous genera Acremonium, Aspergillus, Colletotrichum, Fusarium, Paecilomyces and Penicillium along with some Mycelia sterilia.. There were qualitative and quantitative differences in the type and number of isolates obtained from greenhouse and field-grown plants, with more isolates being obtained from the latter. No difference was found in the number of fungi isolated from leaves and stems irrespective of where the plants was grown. For was field-grown plants, the number of isolates decreased as the plants aged and more fungi were found in tissues near the soil, while for greenhouse-grown plants the number of isolates increased as the plants aged but in this case no more fungi were isolated from those tissues nearer the soil. These results could have biotechnological relevance for the biological control of pests or plant growth promotion.<br>A partir de 1728 fragmentos de hastes e folhas de soja (Glycine max (L.) Merril). provenientes de plantas do campo e de casa de vegetação, coletadas cerca de 20 e 40 dias após a germinação das sementes, 297 fungos endofíticos foram isolados. Os gêneros encontrados foram: Alternaria, Cladosporium, Curvularia, Chaetomium, Scopulariopsis, Drechslera (todos dematiáceos) além de Colletotrichum, Fusarium, Acremonium, Aspergillus, Penicillium, Paecilomyces e Mycelia sterilia. Foram detectadas diferenças qualitativas e quantitativas entre os isolados, em relação a micobiota de hospedeiros provenientes do campo e de casa de vegetação com maior frequência de fungos isolados de plantas no campo em comparação com as de casa de vegetação. Houve diminuição da frequência de fungos com a idade das plantas crescidas no campo, ocorrendo o inverso com as da casa de vegetação, mas em ambos os casos, não houve diferença no número de fungos isolados de hastes e de folhas. Houve em plantas crescidas no campo uma maior incidência nas regiões próximas ao solo o que não ocorreu nas plantas provenientes da casa de vegetação. Os resultados podem ser de utilidade do ponto de vista biotecnológico pelo uso de endófitos introduzidos deliberadamente em plantas visando o controle biológico de pestes ou promoção de crescimento vegetal.
topic Endophytic fungi
Soybean
Biological control
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600003
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