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H2O2-induced acclimation of photosystem II to excess light is mediated by alternative respiratory pathway and salicylic acid

H2O2-induced acclimation of photosystem II to excess light is mediated by alternative respiratory pathway and salicylic acid

Authors :
J. Y. Liang
J. Wen
Hanqing Feng
Yu Wang
N. Ehmet
J. Y. Bai
Lingyun Jia
Q. Z. Hou
Source :
Photosynthetica. 56:1154-1160
Publication Year :
2018
Publisher :
Institute of Experimental Botany, 2018.

Abstract

Acclimation to excess light is required for optimizing plant performance under natural environment. The present work showed that the treatment of Arabidopsis leaves with exogenous H2O2 can increase the acclimation of PSII to excess light. Treatments with H2O2 also enhanced the capacity of the mitochondrial alternative respiratory pathway and salicylic acid (SA) content. Our work also showed that the lack in alternative oxidase (AOX1a) in AtAOX1a antisense line and the SA deficiency in NahG (salicylate hydroxylase gene) transgenic mutant attenuated the H2O2-induced acclimation of PSII to excess light. It indicates that the H2O2-induced acclimation of PSII to excess light could be mediated by the alternative respiratory pathway and SA.

Details

ISSN :
15739058 and 03003604
Volume :
56
Database :
OpenAIRE
Journal :
Photosynthetica
Accession number :
edsair.doi...........41b1d12ae690d76a314e0e4aff2ed9ef
Full Text :
https://doi.org/10.1007/s11099-018-0806-8