Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
25/09/2014 |
Data da última atualização: |
01/09/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ABREU, P. M. V.; GASPAR, C. G.; BUSS, D. S.; VENTURA, J. A.; FERREIRA, P. C. G.; FERNANDES, P. M. B. |
Afiliação: |
Paolla M. V. Abreu, Universidade Federal do Espíríto Santo; Clicia G. Gaspar, Univervidade Federal do Rio de Janeiro; David S. Buss, Universidade Federal do Espírito Santo; Jose Aires Ventura, Incaper; Paulo C. G. Ferreira, Universidade Federal do Rio de Janeiro; Patricia M. B. Fernandes, Universidade Federal do Espírito Santo. |
Título: |
Carica papaya MicroRNAs Are Responsive to Papaya meleira virus Infection. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
PLOS ONE, v. 9, issue 7, p. 1-13, july 2014. |
Páginas: |
13 p. |
Descrição Física: |
il., color. |
ISSN: |
1932-6203 |
DOI: |
10.1371 |
Idioma: |
Português |
Conteúdo: |
MicroRNAs are implicated in the response to biotic stresses. Papaya meleira virus (PMeV) is the causal agent of sticky disease, a commercially important pathology in papaya for which there are currently no resistant varieties. PMeV has a number of unusual features, such as residence in the laticifers of infected plants, and the response of the papaya to PMeV infection is not well understood. The protein levels of 20S proteasome subunits increase during PMeV infection, suggesting that proteolysis could be an important aspect of the plant defense response mechanism. To date, 10,598 plant microRNAs have been identified in the Plant miRNAs Database, but only two, miR162 and miR403, are from papaya. In this study, known plant microRNA sequences were used to search for potential microRNAs in the papaya genome. A total of 462 microRNAs, representing 72 microRNA families, were identified. The expression of 11 microRNAs, whose targets are involved in 20S and 26S proteasomal degradation and in other stress response pathways, was compared by real-time PCR in healthy and infected papaya leaf tissue. We found that the expression of miRNAs involved in proteasomal degradation increased in response to very low levels of PMeV titre and decreased as the viral titre increased. In contrast, miRNAs implicated in the plant response to biotic stress decreased their expression at very low level of PMeV and increased at high PMeV levels. Corroborating with this results, analysed target genes for this miRNAs had their expression modulated in a dependent manner. This study represents a comprehensive identification of conserved miRNAs inpapaya. The data presented here might help to complement the available molecular and genomic tools for the study of papaya. The differential expression of some miRNAs and identifying their target genes will be helpful for understanding the regulation and interaction of PMeV and papaya. MenosMicroRNAs are implicated in the response to biotic stresses. Papaya meleira virus (PMeV) is the causal agent of sticky disease, a commercially important pathology in papaya for which there are currently no resistant varieties. PMeV has a number of unusual features, such as residence in the laticifers of infected plants, and the response of the papaya to PMeV infection is not well understood. The protein levels of 20S proteasome subunits increase during PMeV infection, suggesting that proteolysis could be an important aspect of the plant defense response mechanism. To date, 10,598 plant microRNAs have been identified in the Plant miRNAs Database, but only two, miR162 and miR403, are from papaya. In this study, known plant microRNA sequences were used to search for potential microRNAs in the papaya genome. A total of 462 microRNAs, representing 72 microRNA families, were identified. The expression of 11 microRNAs, whose targets are involved in 20S and 26S proteasomal degradation and in other stress response pathways, was compared by real-time PCR in healthy and infected papaya leaf tissue. We found that the expression of miRNAs involved in proteasomal degradation increased in response to very low levels of PMeV titre and decreased as the viral titre increased. In contrast, miRNAs implicated in the plant response to biotic stress decreased their expression at very low level of PMeV and increased at high PMeV levels. Corroborating with this results, analysed target genes for thi... Mostrar Tudo |
Palavras-Chave: |
Carica papaya; Doenças; Mamão; Meleira; MiRNAs; PMeV; Vírus. |
Thesaurus NAL: |
Carica papaya; Disease; Meleira; MiRNAs; PMeV; Virus. |
Categoria do assunto: |
-- |
URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/397/1/Carica-papaya-microRNAS-Are-responsive-to-papaya.pdf
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Marc: |
LEADER 02852naa a2200373 a 4500 001 1004325 005 2015-09-01 008 2014 bl uuuu u00u1 u #d 022 $a1932-6203 024 7 $a10.1371$2DOI 100 1 $aABREU, P. M. V. 245 $aCarica papaya MicroRNAs Are Responsive to Papaya meleira virus Infection.$h[electronic resource] 260 $c2014 300 $a13 p.$cil., color. 520 $aMicroRNAs are implicated in the response to biotic stresses. Papaya meleira virus (PMeV) is the causal agent of sticky disease, a commercially important pathology in papaya for which there are currently no resistant varieties. PMeV has a number of unusual features, such as residence in the laticifers of infected plants, and the response of the papaya to PMeV infection is not well understood. The protein levels of 20S proteasome subunits increase during PMeV infection, suggesting that proteolysis could be an important aspect of the plant defense response mechanism. To date, 10,598 plant microRNAs have been identified in the Plant miRNAs Database, but only two, miR162 and miR403, are from papaya. In this study, known plant microRNA sequences were used to search for potential microRNAs in the papaya genome. A total of 462 microRNAs, representing 72 microRNA families, were identified. The expression of 11 microRNAs, whose targets are involved in 20S and 26S proteasomal degradation and in other stress response pathways, was compared by real-time PCR in healthy and infected papaya leaf tissue. We found that the expression of miRNAs involved in proteasomal degradation increased in response to very low levels of PMeV titre and decreased as the viral titre increased. In contrast, miRNAs implicated in the plant response to biotic stress decreased their expression at very low level of PMeV and increased at high PMeV levels. Corroborating with this results, analysed target genes for this miRNAs had their expression modulated in a dependent manner. This study represents a comprehensive identification of conserved miRNAs inpapaya. The data presented here might help to complement the available molecular and genomic tools for the study of papaya. The differential expression of some miRNAs and identifying their target genes will be helpful for understanding the regulation and interaction of PMeV and papaya. 650 $aCarica papaya 650 $aDisease 650 $aMeleira 650 $aMiRNAs 650 $aPMeV 650 $aVirus 653 $aCarica papaya 653 $aDoenças 653 $aMamão 653 $aMeleira 653 $aMiRNAs 653 $aPMeV 653 $aVírus 700 1 $aGASPAR, C. G. 700 1 $aBUSS, D. S. 700 1 $aVENTURA, J. A. 700 1 $aFERREIRA, P. C. G. 700 1 $aFERNANDES, P. M. B. 773 $tPLOS ONE$gv. 9, issue 7, p. 1-13, july 2014.
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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