Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges
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=S1982-56762011000400004 |
Resumo: | Three yeast antagonists (two strains of Cryptococcus laurentii and one of Candida sake) from orange trees reduced incidence of green mold by 80 to 95% when tested in wounded orange fruits inoculated with Penicillium digitatum and incubated at 7ºC for 30 days. The yeasts inhibited conidial germination of the pathogen, but did not kill the spores. Effectiveness of the three yeasts as antagonists was associated in part with their ability to rapidly colonize wound sites, despite low nutrient availability. Observations suggested that production of extracellular matrix by the yeasts may have facilitated rapid wound colonization. Germination of P. digitatum conidia was significantly inhibited when the pathogen and antagonists were in direct physical contact in a culture suspension. The results supported the view that competition for nutrients is also a mode of action of yeasts against P. digitatum. |
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Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in orangesCandida sakeCryptococcus laurentiiCitrusYeast antagonistsThree yeast antagonists (two strains of Cryptococcus laurentii and one of Candida sake) from orange trees reduced incidence of green mold by 80 to 95% when tested in wounded orange fruits inoculated with Penicillium digitatum and incubated at 7ºC for 30 days. The yeasts inhibited conidial germination of the pathogen, but did not kill the spores. Effectiveness of the three yeasts as antagonists was associated in part with their ability to rapidly colonize wound sites, despite low nutrient availability. Observations suggested that production of extracellular matrix by the yeasts may have facilitated rapid wound colonization. Germination of P. digitatum conidia was significantly inhibited when the pathogen and antagonists were in direct physical contact in a culture suspension. The results supported the view that competition for nutrients is also a mode of action of yeasts against P. digitatum.Sociedade Brasileira de Fitopatologia2011-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762011000400004Tropical Plant Pathology v.36 n.4 2011reponame:Tropical plant pathology (Online)instname:Sociedade Brasileira de Fitopatologiainstacron:SBF10.1590/S1982-56762011000400004info:eu-repo/semantics/openAccessMekbib,Sissay B.Regnier,Thierry J.C.Korsten,Liseeng2011-11-21T00:00:00Zoai:scielo:S1982-56762011000400004Revistahttps://www.scielo.br/j/tpp/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbf-revista@ufla.br1983-20521982-5676opendoar:2011-11-21T00:00Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologiafalse |
dc.title.none.fl_str_mv |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges |
title |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges |
spellingShingle |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges Mekbib,Sissay B. Candida sake Cryptococcus laurentii Citrus Yeast antagonists |
title_short |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges |
title_full |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges |
title_fullStr |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges |
title_full_unstemmed |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges |
title_sort |
Efficacy and mode of action of yeast antagonists for control of Penicillium digitatum in oranges |
author |
Mekbib,Sissay B. |
author_facet |
Mekbib,Sissay B. Regnier,Thierry J.C. Korsten,Lise |
author_role |
author |
author2 |
Regnier,Thierry J.C. Korsten,Lise |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Mekbib,Sissay B. Regnier,Thierry J.C. Korsten,Lise |
dc.subject.por.fl_str_mv |
Candida sake Cryptococcus laurentii Citrus Yeast antagonists |
topic |
Candida sake Cryptococcus laurentii Citrus Yeast antagonists |
description |
Three yeast antagonists (two strains of Cryptococcus laurentii and one of Candida sake) from orange trees reduced incidence of green mold by 80 to 95% when tested in wounded orange fruits inoculated with Penicillium digitatum and incubated at 7ºC for 30 days. The yeasts inhibited conidial germination of the pathogen, but did not kill the spores. Effectiveness of the three yeasts as antagonists was associated in part with their ability to rapidly colonize wound sites, despite low nutrient availability. Observations suggested that production of extracellular matrix by the yeasts may have facilitated rapid wound colonization. Germination of P. digitatum conidia was significantly inhibited when the pathogen and antagonists were in direct physical contact in a culture suspension. The results supported the view that competition for nutrients is also a mode of action of yeasts against P. digitatum. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-08-01 |
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=S1982-56762011000400004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762011000400004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1982-56762011000400004 |
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.4 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_ |
1754824585528737792 |