TY - JOUR TI - Measurement of Ascorbic Acid and Glutathione Content in Cyanobacterium Synechocystis sp. PCC 6803 AU - Aguillera , Anabella AU - Steelheart, Charlotte AU - Alegre, Matías AU - Berdun, Federico AU - Salerno, Graciela AU - Bartoli, Carlos AU - Pagnussat, Gabriela Carolina AU - Martin, María Victoria VL - 10 IS - 20 PY - 2020 DA - 2020/10/20 SP - e3800 C1 - Bio-protocol 2020;10:e3800 DO - 10.21769/BioProtoc.3800 UR - https://doi.org/10.21769/BioProtoc.3800 AB - Ascorbic acid (AsA) and gluthathione (GSH) are two key components of the antioxidant machinery of eukaryotic and prokaryotic cells. The cyanobacterium Synechocystis sp. PCC 6803 presents both compounds in different concentrations (AsA, 20-100 μM and GSH, 2-5 mM). Therefore, it is important to have precise and sensitive methods to determine the redox status in the cell and to detect variations in this antioxidants. In this protocol, we describe an improved method to estimate the content of both antioxidants (in their reduced and oxidized forms) from the same sample obtained from liquid cultures of Synechocystis sp. PCC 6803. KW - Cyanobacteria KW - Antioxidants KW - Glutathione KW - Ascorbic acid KW - Oxidative stress JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False