Induction of water-stress proteins in cyanobacteria exposed to matric- or osmotic-water stress |
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| Authors: | Nitzan Hershkovitz Aharon Oren Anton Post Yehuda Cohen |
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| Institution: | Division of Microbial and Molecular Ecology, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Israel |
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| Abstract: | Abstract: Specific stress polypeptides were detected in three drought-resistant cyanobacteria ( Phormidium autumnale , LPP4 and Chroococcidiopsis sp.) subjected to matric- and osmotic-water stress. Drought stress caused the induction of at least 2–3 new polypeptides of apparent molecular masses of 30 kDa and 40–45 kDa. The polypeptide of 30 kDa was located in the thylakoid membranes, and the 45-kDa polypeptide in the cytoplasm. When these cyanobacteria were exposed to salt stress polypeptides of similar size appeared. |
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| Keywords: | Matric-water stress Salt stress Stress proteins Cyanobacteria Phormidium Chroococcidiopsis |
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