Moderately elevated temperature eliminates resistance of rice plants with enhanced expression of glutathione reductase to intensive photooxidative stress

Title:

Moderately elevated temperature eliminates resistance of rice plants with enhanced expression of glutathione reductase to intensive photooxidative stress

Creator:

Kouřil, R., Lazár, D., Lee, H., Jo, J., and Nauš, J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:1afdb373-d449-4db9-8749-3f5abd950da0
uuid:1afdb373-d449-4db9-8749-3f5abd950da0
issn:0300-3604
doi:10.1023/B:PHOT.0000027522.35486.f6

Subject:

active oxygen species, chlorophyll fluorescence, Oryza sativa, photochemical and non-photochemical fluorescence quenching, and transgenic plants

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

We developed transgenic rice plants (Oryza sativa L. cv. Daeribbyeo) overproducing cytosolic glutathione reductase (GR) using a GR gene from Brassica campestris and studied their response to photo-oxidative stress in the presence of methyl viologen (MV, 10 and 50 μM concentrations) under room (25 °C) and moderately elevated (35 °C) temperature by analysis of chlorophyll (Chl) a fluorescence parameters (FV/FM, qN, and qP) and of Chl content. Elevated temperature enhanced and accelerated the photo-oxidative damage to photosynthetic apparatus expressed mainly by a fast decrease of qN. Higher temperature supported the protective reaction in transformed rice plants for lower MV concentration (10 μM) and eliminated the enhanced tolerance of photosystem 2 photochemistry to photooxidative stress for higher (50 μM) MV concentration. Different mechanisms and temperature dependence of oxidative and protective reactions explain the results. and R. Kouřil ... [et al.].

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

571-578

Source:

Photosynthetica | 2003 Volume:41 | Number:4

Harvested from:

CDK

Metadata only:

false