Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , |
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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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 |
_version_ |
1748936460162039808 |