Evaluation of the biological control by the yeast Torulaspora globosa against Colletotrichum sublineolum in sorghum

Página do item simplificado
dc.contributor.authorRosa, Marcia Maria [UNESP]
dc.contributor.authorTauk-Tornisielo, Samia Maria [UNESP]
dc.contributor.authorRampazzo, Pedro Eduardo
dc.contributor.authorCeccato-Antonini, Sandra Regina
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2013-09-30T18:48:31Z
dc.date.accessioned2014-05-20T13:57:43Z
dc.date.available2013-09-30T18:48:31Z
dc.date.available2014-05-20T13:57:43Z
dc.date.issued2010-08-01
dc.description.abstractThe yeasts are microorganisms with great potential for biotechnological applications in diverse areas. The biological control of phytopathogens by yeasts has showed satisfactory results under laboratory conditions, and it has already produced commercial formulations. With this as focus, this work aims to perform in vitro and in vivo evaluations of the action of a Torulaspora globosa yeast strain (1S112), isolated from sugarcane rhizosphere, against the phytopathogenic mold Colletotrichum sublineolum, the causative agent of anthracnose in sorghum. In vitro experiments included the antagonism test in Petri dishes with morphological hyphal evaluation; yeast killer activity; siderophore, volatile compound and hydrolytic enzyme production. In vivo experiments were conducted in greenhouse conditions with a sorghum variety susceptible to C. sublineolum by evaluating the anthracnose disease for 6 weeks. The results indicated that the yeast strain significantly controlled the fungal growth, either in vitro or in vivo. The strain of T. globosa exhibited killer activity against two sensitive strains, which is a novel capacity for this species. The yeast did not produce siderophores, volatile compounds or hydrolytic enzymes, although it has reduced the mycelial growth, resulting in hyphal deformities but not cell death. The yeast controlled the anthracnose disease in sorghum, either inoculated before or after the fungal spores, suggesting that the competition for space and nutrients to dominate the mold and killer toxin production, altering the hyphal morphology, are mechanisms utilized by the yeast in the biocontrol.en
dc.description.affiliationUniv Estadual Paulista, Ctr Estudos Ambientais, BR-13506900 São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Ctr Ciencias Agr, Dept Tecnol Agroind & Socioecon Rural, BR-13600970 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Ctr Estudos Ambientais, BR-13506900 São Paulo, Brazil
dc.format.extent1491-1502
dc.identifierhttp://dx.doi.org/10.1007/s11274-010-0324-8
dc.identifier.citationWorld Journal of Microbiology & Biotechnology. New York: Springer, v. 26, n. 8, p. 1491-1502, 2010.
dc.identifier.doi10.1007/s11274-010-0324-8
dc.identifier.issn0959-3993
dc.identifier.urihttp://hdl.handle.net/11449/20569
dc.identifier.wosWOS:000279691100018
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofWorld Journal of Microbiology & Biotechnology
dc.relation.ispartofjcr2.100
dc.relation.ispartofsjr0,604
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBiological controlen
dc.subjectYeastsen
dc.subjectTorulaspora globosaen
dc.subjectColletotrichum sublineolumen
dc.subjectKiller yeasten
dc.titleEvaluation of the biological control by the yeast Torulaspora globosa against Colletotrichum sublineolum in sorghumen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Rio Claro - CEA - Centro de Estudos Ambientais