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Registro Completo
Biblioteca(s):  Biblioteca Rui Tendinha.
Data corrente:  17/04/2018
Data da última atualização:  17/04/2018
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  MADRONERO, J.; RODRIGUES, S. P.; ANTUNES, T. F. S.; ABREU, P. M. V.; VENTURA, J. A.; FERNANDES, A. A. R.; FERNANDES, P. M. B.
Afiliação:  Johana 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.
Título:  Transcriptome analysis provides insights into the delayed sticky disease symptoms in Carica papaya
Ano de publicação:  2018
Fonte/Imprenta:  Plant Cell Reports, p. 1-14, 2018.
Idioma:  Português
Conteúdo:  Carica 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-flow... Mostrar Tudo
Thesaurus NAL:  Carica papaya; Defense responses; Papaya meleira virus; Transcriptome Plant'virus interaction.
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Biblioteca Rui Tendinha (BRT)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
BRT21087 - 1UMTAP - DD

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Registro Completo
Biblioteca(s):  Biblioteca Rui Tendinha.
Data corrente:  29/04/2015
Data da última atualização:  01/09/2015
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  B - 2
Autoria:  ABREU, P. M. V.; ANTUNES, T. F. S.; MAGAÑA-ÁLVAREZ, A.; PÉREZ-BRITO, D.; TAPIA-TUSSEL, R.; VENTURA, J. A.; FERNANDES, A. A. R.; FERNANDES, P. M. B.
Afiliação:  Paolla M. V. Abreu; Tathiana F. S. Antunes; Anuar Magaña-Álvarez; Daisy Pérez-Brito; Raúl Tapia-Tussell; Jose Aires Ventura, Incaper; Antonio A. R. Fernandes; Patricia M. B. Fernandes.
Título:  A Current Overview of the Papaya meleira virus, an Unusual Plant Virus.
Ano de publicação:  2015
Fonte/Imprenta:  Viruses, v. 7, p. 1853-1870, 2015.
DOI:  10.3390/v7041853
Idioma:  Inglês
Conteúdo:  Papaya meleira virus (PMeV) is the causal agent of papaya sticky disease, which is characterized by a spontaneous exudation of fluid and aqueous latex from the papaya fruit and leaves. The latex oxidizes after atmospheric exposure, resulting in a sticky feature on the fruit from which the name of the disease originates. PMeV is an isometric virus particle with a double-stranded RNA (dsRNA) genome of approximately 12 Kb. Unusual for a plant virus, PMeV particles are localized on and linked to the polymers present in the latex. The ability of the PMeV to inhabit such a hostile environment demonstrates an intriguing interaction of the virus with the papaya. A hypersensitivity response is triggered against PMeV infection, and there is a reduction in the proteolytic activity of papaya latex during sticky disease. In papaya leaf tissues, stress responsive proteins, mostly calreticulin and proteasome-related proteins, are up regulated and proteins related to metabolism are down-regulated. Additionally, PMeV modifies the transcription of several miRNAs involved in the modulation of genes related to the ubiquitin-proteasome system. Until now, no PMeV resistant papaya genotype has been identified and roguing is the only viral control strategy available. However, a single inoculation of papaya plants with PMeV dsRNA delayed the progress of viral infection.
Thesaurus NAL:  DsRNA genome virus; Laticifers colonization; Papaya sticky disease; Phytopathogenic virus.
Categoria do assunto:  G Melhoramento Genético
URL:  http://biblioteca.incaper.es.gov.br/digital/bitstream/item/748/1/CurrentOverviewofthePapayameleiravirusVentura.pdf
Marc:  Mostrar Marc Completo
Registro original:  Biblioteca Rui Tendinha (BRT)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
BRT6485 - 1UMTAP - DD
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