Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues

Detalhes bibliográficos
Autor(a) principal: Grijalba,Pablo
Data de Publicação: 2012
Outros Autores: Ridao,Azucena del C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Tropical plant pathology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762012000400006
Resumo: Stem canker caused by Diaporthe phaseolorum var. caulivora is an important disease of soybean in Argentina. The objective of this study was to determine its survival ability in artificially infested straw under laboratory and field conditions. In laboratory, stem pieces of soybean, maize, sorghum, sunflower, potato and wheat were autoclaved, placed in petri dishes on Potato Dextrose Agar and Water Agar, and inoculated with a 7-day-old pathogen culture. All crop residues were colonized and produced perithecia. Debris artificially infested with D. phaseolorum var. caulivora were placed in plastic net bags and transferred to an un-cropped area in a field plot at the University of Buenos Aires. Straws were left on the ground from winter to spring season in both 2007 and 2008 years. After 6 months abundant perithecia were developed in all straws. However, a higher number of perithecia on soybean and sunflower compared to maize, sorghum and potato was determined. These findings suggest that other crops, besides soybean, could maintain alive the inoculum of Diaporthe phaseolorum var. caulivora from soybean for at least 6-7 months.
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spelling Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residuesDiaporthe phaseolorum var. caulivoracrop residuessoybeanstem cankersurvival abilityStem canker caused by Diaporthe phaseolorum var. caulivora is an important disease of soybean in Argentina. The objective of this study was to determine its survival ability in artificially infested straw under laboratory and field conditions. In laboratory, stem pieces of soybean, maize, sorghum, sunflower, potato and wheat were autoclaved, placed in petri dishes on Potato Dextrose Agar and Water Agar, and inoculated with a 7-day-old pathogen culture. All crop residues were colonized and produced perithecia. Debris artificially infested with D. phaseolorum var. caulivora were placed in plastic net bags and transferred to an un-cropped area in a field plot at the University of Buenos Aires. Straws were left on the ground from winter to spring season in both 2007 and 2008 years. After 6 months abundant perithecia were developed in all straws. However, a higher number of perithecia on soybean and sunflower compared to maize, sorghum and potato was determined. These findings suggest that other crops, besides soybean, could maintain alive the inoculum of Diaporthe phaseolorum var. caulivora from soybean for at least 6-7 months.Sociedade Brasileira de Fitopatologia2012-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762012000400006Tropical Plant Pathology v.37 n.4 2012reponame:Tropical plant pathology (Online)instname:Sociedade Brasileira de Fitopatologiainstacron:SBF10.1590/S1982-56762012000400006info:eu-repo/semantics/openAccessGrijalba,PabloRidao,Azucena del C.eng2012-08-10T00:00:00Zoai:scielo:S1982-56762012000400006Revistahttps://www.scielo.br/j/tpp/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbf-revista@ufla.br1983-20521982-5676opendoar:2012-08-10T00:00Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologiafalse
dc.title.none.fl_str_mv Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
title Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
spellingShingle Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
Grijalba,Pablo
Diaporthe phaseolorum var. caulivora
crop residues
soybean
stem canker
survival ability
title_short Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
title_full Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
title_fullStr Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
title_full_unstemmed Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
title_sort Survival of Diaporthe phaseolorum var. caulivora (causal agent of soybean stem canker) artificially inoculated in different crop residues
author Grijalba,Pablo
author_facet Grijalba,Pablo
Ridao,Azucena del C.
author_role author
author2 Ridao,Azucena del C.
author2_role author
dc.contributor.author.fl_str_mv Grijalba,Pablo
Ridao,Azucena del C.
dc.subject.por.fl_str_mv Diaporthe phaseolorum var. caulivora
crop residues
soybean
stem canker
survival ability
topic Diaporthe phaseolorum var. caulivora
crop residues
soybean
stem canker
survival ability
description Stem canker caused by Diaporthe phaseolorum var. caulivora is an important disease of soybean in Argentina. The objective of this study was to determine its survival ability in artificially infested straw under laboratory and field conditions. In laboratory, stem pieces of soybean, maize, sorghum, sunflower, potato and wheat were autoclaved, placed in petri dishes on Potato Dextrose Agar and Water Agar, and inoculated with a 7-day-old pathogen culture. All crop residues were colonized and produced perithecia. Debris artificially infested with D. phaseolorum var. caulivora were placed in plastic net bags and transferred to an un-cropped area in a field plot at the University of Buenos Aires. Straws were left on the ground from winter to spring season in both 2007 and 2008 years. After 6 months abundant perithecia were developed in all straws. However, a higher number of perithecia on soybean and sunflower compared to maize, sorghum and potato was determined. These findings suggest that other crops, besides soybean, could maintain alive the inoculum of Diaporthe phaseolorum var. caulivora from soybean for at least 6-7 months.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-01
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=S1982-56762012000400006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762012000400006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1982-56762012000400006
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 Sociedade Brasileira de Fitopatologia
publisher.none.fl_str_mv Sociedade Brasileira de Fitopatologia
dc.source.none.fl_str_mv Tropical Plant Pathology v.37 n.4 2012
reponame:Tropical plant pathology (Online)
instname:Sociedade Brasileira de Fitopatologia
instacron:SBF
instname_str Sociedade Brasileira de Fitopatologia
instacron_str SBF
institution SBF
reponame_str Tropical plant pathology (Online)
collection Tropical plant pathology (Online)
repository.name.fl_str_mv Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologia
repository.mail.fl_str_mv sbf-revista@ufla.br
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