1. Reposi�rio Institucional do Incaper
  2. Biblioteca Rui Tendinha
  3. Memória Técnica do Incaper
Use este identificador para citar ou linkar para este item: http://biblioteca.incaper.es.gov.br/digital/handle/item/1068
Registro completo de metadados
Campo DCValorIdioma
dc.contributor.authorBUSS, D. S.pt_BR
dc.contributor.authorDIAS, G. B.pt_BR
dc.contributor.authorSANTOS, M. P.pt_BR
dc.contributor.authorVENTURA, J. A.pt_BR
dc.contributor.authorFERNANDES, P. M. B.pt_BR
dc.contributor.otherDavid Shaun Buss, UFES; Germana Bueno Dias, UFES; Mirella Pupo Santos, UFES; Jose Aires Ventura, Incaper; Patricia Machado Bueno Fernandes, UFES.pt_BR
dc.date.accessioned2015-12-16T10:48:00Z-
dc.date.available2015-12-16T10:48:00Z-
dc.date.created2011pt_BR
dc.date.issued2015-12-16pt_BR
dc.identifier.other9918pt_BR
dc.identifier.urihttp://biblioteca.incaper.es.gov.br/digital/handle/item/1068-
dc.descriptionSeedlings of papaya (Carica papaya), cultivar Golden, were exposed to a nitric oxide donor, sodium nitroprusside (SNP), Papaya meleira virus (PMeV) and yeast (Saccharomyces cerevisiae, as a model fungal elicitor). The aim was to investigate the response of C. papaya to infection and the role of nitric oxide in this process. SNP alone led to a short lived (6 h) burst of peroxidase activity and a relatively low level thereafter, although higher than the control, whilst the virus PMeV caused a sustained increase for at least 30 days. In contrast, both SNP and PMeV treatments increased superoxide dismutase activity for at least 30 days. In general, concomitant addition of PMeV and SNP produced the highest increases in peroxidase and superoxide dismutase activity over the 30 day time course. Levels of phenolics were elevated after addition of SNP and histochemistry confirmed increased peroxidase and superoxide dismutase activity, especially around the phloem cell walls, suggestive of lignification. Carbohydrate content was also elevated after SNP treatment, in particular saccharose. Treatment with yeast produced increased peroxidase activity and phenolic and carbohydrate content in the plant tissues. These results demonstrate some of the defences elicited in Carica papaya in response to infection, and the role of nitric oxide in this process. The apparent systemic acquired resistance displayed suggests that artificial initiation of this process might be a useful future technique against PMeV in the horticultural industry.pt_BR
dc.languageenpt_BR
dc.publisherThe Open Nitric Oxide Journal, v. 3, p. 55-64, 2011.pt_BR
dc.subjectMamãopt_BR
dc.titleOxidative stress defence response of Carica papaya challenged by nitric oxide, Papaya meleira virus and Saccharomyces cerevisiaept_BR
dc.type--pt_BR
dc.ainfo.id9382pt_BR
dc.ainfo.lastupdate2015-12-16pt_BR
dc.ainfo.depositanteMerielem Frassonpt_BR
dc.subject.nalthesaurusAntioxidantpt_BR
dc.subject.nalthesaurusCarbohydratept_BR
dc.subject.nalthesaurusCarica papayapt_BR
dc.subject.nalthesaurusNitric oxidept_BR
dc.subject.nalthesaurusPapaya meleira viruspt_BR
dc.subject.nalthesaurusPeroxidasept_BR
dc.subject.nalthesaurusSuperoxide dismutasept_BR
Aparece nas coleções:Memória Técnica do Incaper

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
BRT-oxidativestressdefenceresponceofcaricapapaya-jventura.pdf3,43 MBAdobe PDFThumbnail
Visualizar/Abrir
Mostrar registro simples do item Visualizar estatísticas


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.