Glycinebetaine counteracts the inhibitory effects of salt stress on the degradation and synthesis of D1 protein during photoinhibition in Synechococcus sp. PCC 7942.

Plant Physiology
Norikazu Ohnishi, Norio Murata

Abstract

Glycinebetaine (hereafter referred to as betaine) is a compatible solute that accumulates in certain plants and microorganisms in response to various types of stress. We demonstrated previously that when the cyanobacterium Synechococcus sp. PCC 7942 (hereafter Synechococcus) is transformed with the codA gene for choline oxidase, it can synthesize betaine from exogenously supplied choline, exhibiting enhanced tolerance to salt and cold stress. In this study, we examined the effects of salt stress and betaine synthesis on the photoinhibition of photosystem II (PSII). Salt stress due to 220 mm NaCl enhanced photoinhibition of PSII and betaine protected PSII against photoinhibition under these conditions. However, neither salt stress nor betaine synthesis affected photodamage to PSII. By contrast, salt stress inhibited repair of photodamaged PSII and betaine reversed this inhibitory effect of salt stress. Pulse-chase-labeling experiments revealed that salt stress inhibited degradation of D1 protein in photodamaged PSII and de novo synthesis of D1. By contrast, betaine protected the machinery required for degradation and synthesis of D1 under salt stress. Neither salt stress nor betaine affected levels of psbA transcripts. These obs...Continue Reading

References

Sep 7, 1977·Journal of Theoretical Biology·B Schobert
Sep 1, 1970·Biochimica Et Biophysica Acta·D R WilkenA Rodriquez
Jul 1, 1983·Archives of Biochemistry and Biophysics·T Arakawa, S N Timasheff
Sep 24, 1982·Science·P H YanceyG N Somero
Jul 5, 1993·Biochimica Et Biophysica Acta·E M AroB Andersson
Feb 13, 2001·Current Opinion in Genetics & Development·S Pyronnet, N Sonenberg
Nov 22, 2001·The Journal of Biological Chemistry·Shaun BaileyNicholas H Mann
Jan 18, 2002·The Journal of Biological Chemistry·Yukifumi Uesono, Akio Toh-E
Apr 19, 2002·Current Opinion in Plant Biology·Tony H H Chen, Norio Murata
Nov 20, 2002·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Paulo SilvaPeter J Nixon
Oct 11, 2003·The Plant Journal : for Cell and Molecular Biology·Ronan SulpiceNorio Murata
Oct 27, 2004·The Plant Journal : for Cell and Molecular Biology·Eung-Jun ParkTony H H Chen
Jun 1, 1985·Proceedings of the National Academy of Sciences of the United States of America·A D HansonD Rhodes

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Citations

Jul 24, 2008·Photosynthesis Research·Suleyman I AllakhverdievPrasanna Mohanty
Aug 2, 2008·Photosynthesis Research·Suleyman I Allakhverdiev, Norio Murata
Aug 21, 2014·Extremophiles : Life Under Extreme Conditions·Stefan HäuslerDanny Ionescu
May 23, 2015·Molecular Plant·Mayank Anand GururaniLam Son Phan Tran
Nov 15, 2014·Plant Physiology and Biochemistry : PPB·Hongbing LiSang-Soo Kwak
Jan 9, 2007·Biochimica Et Biophysica Acta·Norio MurataSuleyman I Allakhverdiev
Nov 16, 2014·Environmental Science and Pollution Research International·Parul PariharSheo Mohan Prasad
Jun 1, 2016·Frontiers in Plant Science·Daniel A WeiszHimadri B Pakrasi
Nov 12, 2010·Accountability in Research·Arjanna van der PlasCaroline Wehrmann
Jul 26, 2018·Physical Chemistry Chemical Physics : PCCP·Anjeeta Rani, Pannuru Venkatesu
Oct 16, 2010·Plant, Cell & Environment·Tony H H Chen, Norio Murata
Jun 26, 2020·Frontiers in Plant Science·Wenjing YangNa Sui
Feb 2, 2021·Plant Physiology and Biochemistry : PPB·Sadam HussainNaeem Ahmad

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