Gene expression of Acetyl Co-A carboxylase A (accA) in Synechocystis salina under nitrogen starvation and low salinity stress | ||||
Mansoura Journal of Biology | ||||
Volume 63, Issue 2, June 2023, Page 53-58 PDF (1.05 MB) | ||||
DOI: 10.21608/mjb.2023.449356 | ||||
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Authors | ||||
Bosy Shehatta* 1; Eladel Eltanahy2; Mohamed Abdelsattar3; Linda Smaan1; Mohamed Abbas1 | ||||
1Botany Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt | ||||
2Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt. | ||||
3Agricultural Genetic Engineering Research Institute (AGERI), Agricultural Research Center (ARC), Giza, Egypt | ||||
Abstract | ||||
Cyanobacteria are potential sources of valuable products such as proteins, lipids, pigments, vitamins and polysaccharides. lipids are considered one of the primary active metabolites in the cyanobacterium cell. Therefore, the usage of the unicellular cyanobacterium Synechocystis salina as a sustainable biological source for the accumulation of lipids is the main goal of the current research. Environmental stress such as low salinity (25 ppt sea salt) increased the lipid content of S.salina to 13.883% DW compared with the control. Nitrogen deficiency also elevated the lipid content of S.salina to 11.87% DW compared with control at adequate N supply. Acetyl Co-A carboxylase A (accA) catalyzes the first step in fatty acid biosynthesis; therefore, the monitoring of its transcription level is crucial to understand the effect of different stressors on lipid biosynthesis. The expression level of accA gene in S.salina was upregulated to 8.38 and 35 folds under nitrate depletion and 25 ppt sea salt respectively. | ||||
Keywords | ||||
Gene expression; Acetyl Co-A carboxylase A (accA); low-salt stress; nitrogen starvation | ||||
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