Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , , |
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=S1982-56762011000300001 |
Resumo: | Fusarium tucumaniae and F. virguliforme are the primary etiological agents of sudden-death syndrome (SDS) of soybean in Argentina and the United States, respectively. Five isolates of F. tucumaniae and four isolates of F. virguliforme were tested for relative aggressiveness to soybean, using a toothpick inoculation method and two versions of a soil infestation inoculation method. Partially resistant soybean cultivar RA629 and susceptible cultivar A6445RG were inoculated separately with each of the nine isolates. Two experiments for each inoculation method were performed. Analysis of variance identified a significant three-way interaction of soybean cultivar*experiment*SDS pathogen (P = 0.01) using the different methods. When the two soil infestation methods were used, F. virguliforme was more aggressive than F. tucumaniae; however, when using the toothpick method, isolates of F. virguliforme and F. tucumaniae were equally aggressive. Although all three methods discriminated levels of partial resistance of the genotypes to SDS, results of the present study indicated that soil inoculations with sorghum infested grain represent the best method for evaluating soybean cultivar resistance to SDS. The existence of interactions among the host, pathogen and environmental conditions highlights the need for additional studies to improve the reproducibility of tests for screening soybean germplasm for resistance to SDS. |
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Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniaeGlycine maxArgentinapathogenicitySDSUnited StatesFusarium tucumaniae and F. virguliforme are the primary etiological agents of sudden-death syndrome (SDS) of soybean in Argentina and the United States, respectively. Five isolates of F. tucumaniae and four isolates of F. virguliforme were tested for relative aggressiveness to soybean, using a toothpick inoculation method and two versions of a soil infestation inoculation method. Partially resistant soybean cultivar RA629 and susceptible cultivar A6445RG were inoculated separately with each of the nine isolates. Two experiments for each inoculation method were performed. Analysis of variance identified a significant three-way interaction of soybean cultivar*experiment*SDS pathogen (P = 0.01) using the different methods. When the two soil infestation methods were used, F. virguliforme was more aggressive than F. tucumaniae; however, when using the toothpick method, isolates of F. virguliforme and F. tucumaniae were equally aggressive. Although all three methods discriminated levels of partial resistance of the genotypes to SDS, results of the present study indicated that soil inoculations with sorghum infested grain represent the best method for evaluating soybean cultivar resistance to SDS. The existence of interactions among the host, pathogen and environmental conditions highlights the need for additional studies to improve the reproducibility of tests for screening soybean germplasm for resistance to SDS.Sociedade Brasileira de Fitopatologia2011-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762011000300001Tropical Plant Pathology v.36 n.3 2011reponame:Tropical plant pathology (Online)instname:Sociedade Brasileira de Fitopatologiainstacron:SBF10.1590/S1982-56762011000300001info:eu-repo/semantics/openAccessScandiani,María MercedesRuberti,Delma S.Giorda,Laura M.Pioli,Rosanna N.Luque,Alicia G.Bottai,HebeIvancovich,Juan J.Aoki,TakayukiO'Donnell,Kerryeng2011-08-24T00:00:00Zoai:scielo:S1982-56762011000300001Revistahttps://www.scielo.br/j/tpp/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbf-revista@ufla.br1983-20521982-5676opendoar:2011-08-24T00:00Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologiafalse |
dc.title.none.fl_str_mv |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae |
title |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae |
spellingShingle |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae Scandiani,María Mercedes Glycine max Argentina pathogenicity SDS United States |
title_short |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae |
title_full |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae |
title_fullStr |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae |
title_full_unstemmed |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae |
title_sort |
Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae |
author |
Scandiani,María Mercedes |
author_facet |
Scandiani,María Mercedes Ruberti,Delma S. Giorda,Laura M. Pioli,Rosanna N. Luque,Alicia G. Bottai,Hebe Ivancovich,Juan J. Aoki,Takayuki O'Donnell,Kerry |
author_role |
author |
author2 |
Ruberti,Delma S. Giorda,Laura M. Pioli,Rosanna N. Luque,Alicia G. Bottai,Hebe Ivancovich,Juan J. Aoki,Takayuki O'Donnell,Kerry |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Scandiani,María Mercedes Ruberti,Delma S. Giorda,Laura M. Pioli,Rosanna N. Luque,Alicia G. Bottai,Hebe Ivancovich,Juan J. Aoki,Takayuki O'Donnell,Kerry |
dc.subject.por.fl_str_mv |
Glycine max Argentina pathogenicity SDS United States |
topic |
Glycine max Argentina pathogenicity SDS United States |
description |
Fusarium tucumaniae and F. virguliforme are the primary etiological agents of sudden-death syndrome (SDS) of soybean in Argentina and the United States, respectively. Five isolates of F. tucumaniae and four isolates of F. virguliforme were tested for relative aggressiveness to soybean, using a toothpick inoculation method and two versions of a soil infestation inoculation method. Partially resistant soybean cultivar RA629 and susceptible cultivar A6445RG were inoculated separately with each of the nine isolates. Two experiments for each inoculation method were performed. Analysis of variance identified a significant three-way interaction of soybean cultivar*experiment*SDS pathogen (P = 0.01) using the different methods. When the two soil infestation methods were used, F. virguliforme was more aggressive than F. tucumaniae; however, when using the toothpick method, isolates of F. virguliforme and F. tucumaniae were equally aggressive. Although all three methods discriminated levels of partial resistance of the genotypes to SDS, results of the present study indicated that soil inoculations with sorghum infested grain represent the best method for evaluating soybean cultivar resistance to SDS. The existence of interactions among the host, pathogen and environmental conditions highlights the need for additional studies to improve the reproducibility of tests for screening soybean germplasm for resistance to SDS. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-01 |
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=S1982-56762011000300001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762011000300001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1982-56762011000300001 |
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.36 n.3 2011 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 |
_version_ |
1754824585427025920 |