Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys

Detalhes bibliográficos
Autor(a) principal: Soares,Ana Cristina Fermino
Data de Publicação: 2006
Outros Autores: Sousa,Carla da Silva, Coimbra,João Luiz, Machado,Gisele da Silva, Garrido,Marlon da Silva, Almeida,Nailson dos Santos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000400011
Resumo: Scutellonema bradys (Steiner & LeHew) Andrassy is the most important yam nematode in the State of Bahia, Brazil, being responsible for the decay of yam tubers, known as dry rot disease. Nematode-trapping fungi are potential biocontrol agents against plant parasitic nematodes. The in vitro predatory ability of Arthrobotrys musiformis Drechsler and Monacrosporium thaumasium Drechsler on S. bradys was evaluated. The fungi were grown in PDA medium, than transferred to the center of Petri dishes with 2% agar plus water. After 14 days of the fungal cultures incubation, 150 nematodes were added to the dishes. For a period of 5 days, at 24-hour intervals, the number of captured nematodes was counted. Both fungi formed trapping structures of single ring and three-dimensional adhesive network types, 24 hours after the addition of the nematodes to the fungal cultures. The percentage of nematodes captured by each fungus increased linearly with time, reaching 94.6% and 97.3% of captured nematodes by A. musiformis and M. thaumasium, respectively, at the fifth day of evaluation. Both fungi presented good predatory ability upon S. bradys. This is the first report of nematophagous fungi capturing S. bradys. Further studies should evaluate the potential of these fungi as biocontrol agents of S. bradys in yam plantations.
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spelling Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradysDioscorea cayennensis Lam.nematophagous fungiyam dry rotbiological controlScutellonema bradys (Steiner & LeHew) Andrassy is the most important yam nematode in the State of Bahia, Brazil, being responsible for the decay of yam tubers, known as dry rot disease. Nematode-trapping fungi are potential biocontrol agents against plant parasitic nematodes. The in vitro predatory ability of Arthrobotrys musiformis Drechsler and Monacrosporium thaumasium Drechsler on S. bradys was evaluated. The fungi were grown in PDA medium, than transferred to the center of Petri dishes with 2% agar plus water. After 14 days of the fungal cultures incubation, 150 nematodes were added to the dishes. For a period of 5 days, at 24-hour intervals, the number of captured nematodes was counted. Both fungi formed trapping structures of single ring and three-dimensional adhesive network types, 24 hours after the addition of the nematodes to the fungal cultures. The percentage of nematodes captured by each fungus increased linearly with time, reaching 94.6% and 97.3% of captured nematodes by A. musiformis and M. thaumasium, respectively, at the fifth day of evaluation. Both fungi presented good predatory ability upon S. bradys. This is the first report of nematophagous fungi capturing S. bradys. Further studies should evaluate the potential of these fungi as biocontrol agents of S. bradys in yam plantations.Escola Superior de Agricultura "Luiz de Queiroz"2006-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000400011Scientia Agricola v.63 n.4 2006reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162006000400011info:eu-repo/semantics/openAccessSoares,Ana Cristina FerminoSousa,Carla da SilvaCoimbra,João LuizMachado,Gisele da SilvaGarrido,Marlon da SilvaAlmeida,Nailson dos Santoseng2007-08-20T00:00:00Zoai:scielo:S0103-90162006000400011Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2007-08-20T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
title Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
spellingShingle Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
Soares,Ana Cristina Fermino
Dioscorea cayennensis Lam.
nematophagous fungi
yam dry rot
biological control
title_short Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
title_full Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
title_fullStr Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
title_full_unstemmed Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
title_sort Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
author Soares,Ana Cristina Fermino
author_facet Soares,Ana Cristina Fermino
Sousa,Carla da Silva
Coimbra,João Luiz
Machado,Gisele da Silva
Garrido,Marlon da Silva
Almeida,Nailson dos Santos
author_role author
author2 Sousa,Carla da Silva
Coimbra,João Luiz
Machado,Gisele da Silva
Garrido,Marlon da Silva
Almeida,Nailson dos Santos
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Soares,Ana Cristina Fermino
Sousa,Carla da Silva
Coimbra,João Luiz
Machado,Gisele da Silva
Garrido,Marlon da Silva
Almeida,Nailson dos Santos
dc.subject.por.fl_str_mv Dioscorea cayennensis Lam.
nematophagous fungi
yam dry rot
biological control
topic Dioscorea cayennensis Lam.
nematophagous fungi
yam dry rot
biological control
description Scutellonema bradys (Steiner & LeHew) Andrassy is the most important yam nematode in the State of Bahia, Brazil, being responsible for the decay of yam tubers, known as dry rot disease. Nematode-trapping fungi are potential biocontrol agents against plant parasitic nematodes. The in vitro predatory ability of Arthrobotrys musiformis Drechsler and Monacrosporium thaumasium Drechsler on S. bradys was evaluated. The fungi were grown in PDA medium, than transferred to the center of Petri dishes with 2% agar plus water. After 14 days of the fungal cultures incubation, 150 nematodes were added to the dishes. For a period of 5 days, at 24-hour intervals, the number of captured nematodes was counted. Both fungi formed trapping structures of single ring and three-dimensional adhesive network types, 24 hours after the addition of the nematodes to the fungal cultures. The percentage of nematodes captured by each fungus increased linearly with time, reaching 94.6% and 97.3% of captured nematodes by A. musiformis and M. thaumasium, respectively, at the fifth day of evaluation. Both fungi presented good predatory ability upon S. bradys. This is the first report of nematophagous fungi capturing S. bradys. Further studies should evaluate the potential of these fungi as biocontrol agents of S. bradys in yam plantations.
publishDate 2006
dc.date.none.fl_str_mv 2006-08-01
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=S0103-90162006000400011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000400011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162006000400011
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.63 n.4 2006
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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