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dc.contributor.authorMADRONERO, J.
dc.contributor.authorRODRIGUES, S. P.
dc.contributor.authorANTUNES, T. F. S.
dc.contributor.authorABREU, P. M. V.
dc.contributor.authorVENTURA, J. A.
dc.contributor.authorFERNANDES, A. A. R.
dc.contributor.authorFERNANDES, P. M. B.
dc.contributor.otherJohana Madroñero, UFES; Silas P. Rodrigues, UFES; Tathiana F. S. Antunes, UFES; Paolla M. V. Abreu, UFES; Jose Aires Ventura, Incaper; A. Alberto R. Fernandes, UFES; Patricia Machado Bueno Fernandes, UFES.
dc.date.accessioned2018-04-17T16:29:26Z-
dc.date.available2018-04-17T16:29:26Z-
dc.date.created2018
dc.date.issued2018-04-17
dc.identifier.other21087
dc.identifier.urihttp://biblioteca.incaper.es.gov.br/digital/handle/123456789/3087-
dc.descriptionCarica papaya plants develop the papaya sticky disease (PSD) as a result of the combined infection of papaya meleira virus (PMeV) and papaya meleira virus 2 (PMeV2), or PMeV complex. PSD symptoms appear only after C. papaya flowers. To understand the mechanisms involved in this phenomenon, the global gene expression patterns of PMeV complex-infected C. papaya at pre-and post-flowering stages were assessed by RNA-Seq. The result was 633 and 88 differentially expressed genes at pre- and post-flowering stages, respectively. At pre-flowering stage, genes related to stress and transport were up-regulated while metabolism-related genes were down-regulated. It was observed that induction of several salicylic acid (SA)-activated genes, including PR1, PR2, PR5, WRKY transcription factors, ROS and callose genes, suggesting SA signaling involvement in the delayed symptoms. In fact, pre-flowering C. papaya treated with exogenous SA showed a tendency to decrease the PMeV and PMeV2 loads when compared to control plants. However, pre-flowering C. papaya also accumulated transcripts encoding a NPR1-inhibitor (NPR1-I/NIM1-I) candidate, genes coding for UDP-glucosyltransferases (UGTs) and several genes involved with ethylene pathway, known to be negative regulators of SA signaling. At post-flowering, when PSD symptoms appeared, the down-regulation of PR-1 encoding gene and the induction of BSMT1 and JA metabolism-related genes were observed. Hence, SA signaling likely operates at the pre-flowering stage of PMeV complex-infected C. papaya inhibiting the development of PSD symptoms, but the induction of its negative regulators prevents the full-scale and long-lasting tolerance.
dc.languagept_BR
dc.publisherPlant Cell Reports, p. 1-14, 2018.
dc.titleTranscriptome analysis provides insights into the delayed sticky disease symptoms in Carica papaya
dc.type--
dc.ainfo.id20018
dc.ainfo.lastupdate2018-04-17
dc.ainfo.depositanteMerielem Frasson
dc.subject.nalthesaurusCarica papaya
dc.subject.nalthesaurusPapaya meleira virus
dc.subject.nalthesaurusTranscriptome Plant'virus interaction
dc.subject.nalthesaurusDefense responses
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