NaCl-induced phosphorylation of light harvesting chlorophyll a/b proteins in thylakoid membranes from the halotolerant green alga, Dunaliella salina

FEBS Letters
Xian-De Liu, Yun-Gang Shen

Abstract

Light could induce phosphorylation of light harvesting chlorophyll a/b binding proteins (LHCII) in Dunaliella salina and spinach thylakoid membranes. We found that neither phosphorylation was affected by glycerol, whereas treatment with NaCl significantly enhanced light-induced LHCII phosphorylation in D. salina thylakoid membranes and inhibited that in spinach. Furthermore, even in the absence of light, NaCl and several other salts induced LHCII phosphorylation in D. salina thylakoid membranes, but not in spinach thylakoid membranes. In addition, hypertonic shock induced LHCII phosphorylation in intact D. salina under dark conditions and cells adapted to different NaCl concentrations exhibited similar LHCII phosphorylation levels. Taken together, these results show for the first time that while LHCII phosphorylation of D. salina thylakoid membranes resembles that of spinach thylakoid membranes in terms of light-mediated control, the two differ with respect to NaCl sensitivity under light and dark conditions.

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Citations

May 8, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R Nagaraja ReddyJ V Patil
Dec 11, 2013·PloS One·Weimin LiYuyang Wang
Sep 8, 2015·International Journal of Molecular Sciences·Mohammad-Zaman NouriSetsuko Komatsu
Apr 16, 2013·International Journal of Molecular Sciences·Iva HlaváčkováMilan Kodíček
Apr 24, 2020·DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes·Pingping LiuXusheng Wang
Jul 14, 2020·International Journal of Genomics·Aref AlshameriSaleh Alansi

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