Parasitism of Rhizoctonia solani by strains of Trichoderma spp.

Detalhes bibliográficos
Autor(a) principal: Melo,Itamar Soares de
Data de Publicação: 2000
Outros Autores: Faull,Jane L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000100010
Resumo: Rhizoctonia solani causes serious diseases in a wide range of plant species. The fungus Trichoderma has been shown to be particularly effective in the control of the pathogen. Thus, this research was carried out to screen fourteen Trichoderma strains against R. solani in vitro. All strains tested inhibited the growth of R. solani. Three T. koningii strains produced toxic metabolites with strong activity against R. solani, inhibiting the mycelial growth by 79%. T. harzianum, Th-9 reduced the viability of sclerotia of R. solani by 81.8% and T. koningii, TK-5 reduced by 53%. Electron microscopic observations revealed that all T. harzianum strains interacted with R. solani. Th-9 grew toward and coiled around the host cells, penetrating and destroying the hyphae. Penetration of host cells was apparently accomplished by mechanical activity.
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spelling Parasitism of Rhizoctonia solani by strains of Trichoderma spp.RhizoctoniaTrichodermabiological controlRhizoctonia solani causes serious diseases in a wide range of plant species. The fungus Trichoderma has been shown to be particularly effective in the control of the pathogen. Thus, this research was carried out to screen fourteen Trichoderma strains against R. solani in vitro. All strains tested inhibited the growth of R. solani. Three T. koningii strains produced toxic metabolites with strong activity against R. solani, inhibiting the mycelial growth by 79%. T. harzianum, Th-9 reduced the viability of sclerotia of R. solani by 81.8% and T. koningii, TK-5 reduced by 53%. Electron microscopic observations revealed that all T. harzianum strains interacted with R. solani. Th-9 grew toward and coiled around the host cells, penetrating and destroying the hyphae. Penetration of host cells was apparently accomplished by mechanical activity.Escola Superior de Agricultura "Luiz de Queiroz"2000-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000100010Scientia Agricola v.57 n.1 2000reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162000000100010info:eu-repo/semantics/openAccessMelo,Itamar Soares deFaull,Jane L.eng2000-04-27T00:00:00Zoai:scielo:S0103-90162000000100010Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2000-04-27T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
title Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
spellingShingle Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
Melo,Itamar Soares de
Rhizoctonia
Trichoderma
biological control
title_short Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
title_full Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
title_fullStr Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
title_full_unstemmed Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
title_sort Parasitism of Rhizoctonia solani by strains of Trichoderma spp.
author Melo,Itamar Soares de
author_facet Melo,Itamar Soares de
Faull,Jane L.
author_role author
author2 Faull,Jane L.
author2_role author
dc.contributor.author.fl_str_mv Melo,Itamar Soares de
Faull,Jane L.
dc.subject.por.fl_str_mv Rhizoctonia
Trichoderma
biological control
topic Rhizoctonia
Trichoderma
biological control
description Rhizoctonia solani causes serious diseases in a wide range of plant species. The fungus Trichoderma has been shown to be particularly effective in the control of the pathogen. Thus, this research was carried out to screen fourteen Trichoderma strains against R. solani in vitro. All strains tested inhibited the growth of R. solani. Three T. koningii strains produced toxic metabolites with strong activity against R. solani, inhibiting the mycelial growth by 79%. T. harzianum, Th-9 reduced the viability of sclerotia of R. solani by 81.8% and T. koningii, TK-5 reduced by 53%. Electron microscopic observations revealed that all T. harzianum strains interacted with R. solani. Th-9 grew toward and coiled around the host cells, penetrating and destroying the hyphae. Penetration of host cells was apparently accomplished by mechanical activity.
publishDate 2000
dc.date.none.fl_str_mv 2000-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000100010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000100010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162000000100010
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.57 n.1 2000
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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