Cold Tolerance of Photosynthetic Electron Transport System Is Enhanced in Wheat Plants Grown Under Elevated CO2

Frontiers in Plant Science
Xiancan ZhuXiangnan Li

Abstract

The effects of CO2 elevation on sensitivity of photosynthetic electron transport system of wheat in relation to low temperature stress are unclear. The performance of photosynthetic electron transport system and antioxidant system in chloroplasts was investigated in a temperature sensitive wheat cultivar Lianmai6 grown under the combination of low temperature (2 days at 2/-1°C in the day/night) and CO2 elevation (800 μmol l-1). It was found that CO2 elevation increased the efficiency of photosynthetic electron transport in wheat exposed to low temperature stress, which was related to the enhanced maximum quantum yield for electron transport beyond QA and the increased quantum yield for reduction of end electron acceptors at the PSI acceptor side in plants under elevated CO2. Also, under low temperature, the activities of ATPases, ascorbate peroxidase, and catalase in chloroplasts were enhanced in wheat under elevated CO2. It suggested that the cold tolerance of photosynthetic electron transport system is enhanced by CO2 elevation.

References

Nov 26, 2009·Plant Physiology and Biochemistry : PPB·Pooja MehtaSudhakar Bharti
Jun 16, 2012·Plant Physiology and Biochemistry : PPB·Marian BresticSuleyman I Allakhverdiev
Jul 19, 2013·Photosynthesis Research·Marek ZivcakSuleyman I Allakhverdiev
Apr 1, 2009·Plant Science : an International Journal of Experimental Plant Biology·Chunfang ZhengWeixing Cao
Oct 24, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Zhiyu ZuoXiangnan Li
Mar 1, 2013·Functional Plant Biology : FPB·Eduardo Dias de OliveiraJairo A Palta

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Citations

Oct 6, 2020·Frontiers in Plant Science·Elena Ermilova
Oct 17, 2018·Frontiers in Plant Science·Shokoofeh HajihashemiKadambot H M Siddique
Aug 8, 2020·International Journal of Molecular Sciences·Rong ZhouCarl-Otto Ottosen

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Datasets Mentioned

BETA
GMT220

Methods Mentioned

BETA
Assay
Fluorescence

Software Mentioned

PEA Plus
SPSS
Biolyzer

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