期刊
PLANT PHYSIOLOGY AND BIOCHEMISTRY
卷 168, 期 -, 页码 353-372出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2021.09.037
关键词
Abiotic stress; Antioxidative defence; Methylglyoxal; Glyoxalase system; Cyanobacteria
资金
- National Academy of Sciences India (NASI)
- Indian Council of Agricultural Research-National Bureau of Agriculturally Important Micro-organisms (ICAR-NBAIM), SERB Govt of India
- DST, New Delhi
- UGC
- DST-Inspire
Oxidative stress is a common consequence of abiotic stress in plants and cyanobacteria, caused by reactive oxygen species. Increasing the antioxidative defence system can help combat oxidative stress.
Oxidative stress is common consequence of abiotic stress in plants as well as cyanobacteria caused by generation of reactive oxygen species (ROS), an inevitable product of respiration and photosynthetic electron transport. ROS act as signalling molecule at low concentration however, when its production exceeds the endurance capacity of antioxidative defence system, the organisms suffer oxidative stress. A highly toxic metabolite, methylglyoxal (MG) is also produced in cyanobacteria in response to various abiotic stresses which consequently augment the ensuing oxidative damage. Taking recourse to the common lineage of eukaryotic plants and cyanobacteria, it would be worthwhile to explore the regulatory role of glyoxalase system and antioxidative defense mechanism in combating abiotic stress in cyanobacteria. This review provides comprehensive information on the complete glyoxalase system (GlyI, GlyII and GlyIII) in cyanobacteria. Furthermore, it elucidates the recent understanding regarding the production of ROS and MG, noteworthy link between intracellular MG and ROS and its detoxification via synchronization of antioxidants (enzymatic and non-enzymatic) and glyoxalase systems using glutathione (GSH) as common co-factor.
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