Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1058201
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dc.contributor.authorMERTZ-HENNING, L. M.pt_BR
dc.contributor.authorPEGORARO, C.pt_BR
dc.contributor.authorMAIA, L. C.pt_BR
dc.contributor.authorVENSKE, E.pt_BR
dc.contributor.authorROMBALDI, C. V.pt_BR
dc.contributor.authorOLIVEIRA, A. C. dept_BR
dc.date.accessioned2017-07-13T18:49:40Z-
dc.date.available2017-07-13T18:49:40Z-
dc.date.created2016-12-07pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationGenetics and Molecular Research, v. 15, n. 2, gmr.15027954, may 2016.pt_BR
dc.identifier.issn1676-5680pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1058201pt_BR
dc.descriptionABSTRACT: Although flooding is one of the most important environmental stresses worldwide, not all plant species are intolerant to its effects. Species from semi-aquatic environments, such as rice, have the capacity to cope with flooding stress. Heat-shock proteins (Hsps) are thought to contribute to cellular homeostasis under both optimal and adverse growth conditions. Studies of gene expression in plants exposed to low levels of oxygen revealed the up-regulation of Hsp genes. However, it is not clear whether Hsp genes are transcribed as a function of tolerance or whether they represent a response to anoxic stress. Therefore, the accumulation of Hsp gene transcripts was investigated in two different cultivars, 'Nipponbare' (flooding tolerant) and 'IPSL 2070' (flooding sensitive), subjected to anoxic stress. Fifteen-day-old rice root seedlings from both cultivars were used. Four different treatments were performed: no anoxia (control); 24-h anoxia; 48-h; and 72 anoxia; and 72-h anoxia. Anoxic stress was confirmed by the increased gene expression of alcohol dehydrogenase. The data obtained showed that both rice cultivars ('Nipponbare' and 'IPSL 2070') accumulated Hsp gene transcripts under anoxic stress; however, the majority of the Hsp genes evaluated were responsive to anoxic stress in 'IPSL 2070' (flooding sensitive), whereas in 'Nipponbare' (flooding tolerant), only six genes were highly up-regulated. This suggests that although Hsps have an important role in the response to anoxia, they are not the major cause of tolerance.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleExpression profile of rice Hsp genes under anoxic stress.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-07-13T18:49:40Zpt_BR
dc.subject.thesagroArrozpt_BR
dc.subject.thesagroGenept_BR
dc.subject.nalthesaurusRicept_BR
dc.subject.nalthesaurusGene expressionpt_BR
riaa.ainfo.id1058201pt_BR
riaa.ainfo.lastupdate2017-07-13pt_BR
dc.identifier.doihttp://dx.doi.org/10.4238/gmr.15027954pt_BR
dc.contributor.institutionLILIANE MARCIA MERTZ HENNING, CNPSO; UFPel; UFPel; UFPel; UFPel; A. Costa de Oliveira, UFPel.pt_BR
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