Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/6640
Título: Peroxiredoxins are involved in two independent signalling pathways in the abiotic stress protection in Vitis vinifera
Autor: Vidigal, P.
Carvalho, R.
Amâncio, S.
Carvalho, L.
Palavras-chave: abscisic acid
heat stress
water stress
Data: 2013
Editora: Springer
Citação: "Biologia Plantarum". ISSN 0006-3134. 57(4) (2013) 675-683
Resumo: Peroxiredoxins (Prxs) play major roles in preventing oxidative damage and their function is consistent with the presence of Prx isoforms in most, if not all, cellular compartments and their expression is dependent on environmental conditions. The aim of this study was to identify and characterize genes encoding Prxs in Vitis vinifera. Quantitative real time polymerase chain reaction (qRT PCR) was used to determine their response to irradiance, heat, and water stress. We identified seven vvprx genes, two of which were especially responsive to water stress, followed by heat stress, but no major changes were observed after high irradiance. The vvprxIIF targeted to mitochondria was the most responsive to water stress and it might be involved in drought tolerance through H2O2 signalling. The vvprxII-2, a putative PrxII, is targeted to the chloroplasts and was the most responsive to heat stress. It might be related with abscisic acid-dependent thermotolerance
Peer review: yes
URI: http://hdl.handle.net/10400.5/6640
ISSN: 0006-3134
Aparece nas colecções:CBAA - Artigos de Revista

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