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A SALT‐INDUCED CHLOROPLAST PROTEIN IN DUNALIELLA SALINA (CHLOROPHYTA) 1
Author(s) -
Shan Lu,
XiaoNing Zhang,
PengYun Li,
ZhiLi Liu,
ZhongHao Xia
Publication year - 1996
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.0022-3646.1996.00983.x
Subject(s) - dunaliella salina , biology , halophile , chloroplast , chlorophyta , dunaliella , glycerol , osmotic shock , photosynthesis , biochemistry , protein biosynthesis , cell wall , botany , hill reaction , algae , bacteria , gene , genetics
The unicellular green alga Dunaliella salina Teod, is halophilic and wall‐less. The cell acclimates to osmotic stresses by accumulation or degradation of glycerol. To investigate other mechanisms involved in its physiological recovery following hyperosmotic shocks, protein profiles from cells grown in various salinities were compared. A 13‐kDa protein (P13) accumulated when cells were subjected to drastic hyperosmotic shock. Front our results with antibiotic‐treated cells and purified chloroplasts, we believe that this component results from de novo translation in chloroplasts. The solubility of P13 was strongly promoted by Triton X‐100. Its accumulation was correlated with the recovery of photosynthesis.