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Comparative transcriptomic profiling of Vitis vinifera under high light using a...

Carvalho, Luísa C.; Vilela, Belmiro J.; Mullineaux, Phil M.; Amâncio, Sara

Research Article ; Understanding abiotic stress responses is one of the most important issues in plant research nowadays. Abiotic stress, including excess light, can promote the onset of oxidative stress through the accumulation of reactive oxygen species. Oxidative stress also arises when in vitro propagated plants are exposed to high light upon transfer to ex vitro. To determine whether the underlying pathwa...

Data: 2011   |   Origem: Repositório da UTL

Comparative transcriptomic profiling of Vitis vinifera under high light using a...

Carvalho, Luísa C.; Vilela, Belmiro J.; Mullineaux, Phil M.; Amâncio, Sara

ABSTRACT Understanding abiotic stress responses is one of the most important issues in plant research nowadays. Abiotic stress, including excess light, can promote the onset of oxidative stress through the accumulation of reactive oxygen species. Oxidative stress also arises when in vitro propagated plants are exposed to high light upon transfer to ex vitro. To determine whether the underlying pathways activate...

Data: 2011   |   Origem: Repositório da UTL

Solanum lycopersicon Mill. and Nicotiana benthamiana L. under high light show d...

Carvalho, Luísa C.; Santos, Sónia; Vilela, B.J.; Amâncio, Sara

Two experimentally important species, Solanum lycopersicon Mill. and Nicotiana benthamiana L., were propagated in vitro under low light (50 mmolm 2 s 1) and transferred to HL (200 mmolm 2 s 1) under a protocol previously developed for grapevine and chestnut. Compared with photooxidative stress parameters already tested in those species, imaging of hydrogen peroxide and superoxide revealed an accumulation on d2–...

Data: 2008   |   Origem: Repositório da UTL

Derepressed sulfate transporters are strongly and rapidly repressed after sulfa...

Amâncio, Sara; Tavares, Silvia; Sousa, Cátia; Carvalho, Luísa C.

A cell system of two Vitis species,Vitis vinifera cv. Touriga Nacional and Vitis rupestris, was chosen to study the response to sulfate deficiency and sulfate resupply through the analysis of sulfate influx and the expression of sulfate transporter transcripts. Cell suspensions were grown under two sulfate conditions: S sufficient (þS; 1.5 mM of MgSO4) and S deficient ( S). Both species were equally affected by...

Data: 2008   |   Origem: Repositório da UTL

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