TY - JOUR
T1 - Recent developments in enzymatic antioxidant defence mechanism in plants with special reference to abiotic stress
AU - Rajput, Vishnu D.
AU - Harish,
AU - Singh, Rupesh Kumar
AU - Verma, Krishan K.
AU - Sharma, Lav
AU - Quiroz-Figueroa, Francisco Roberto
AU - Meena, Mukesh
AU - Gour, Vinod Singh
AU - Minkina, Tatiana
AU - Sushkova, Svetlana
AU - Mandzhieva, Saglara
N1 - Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/4
Y1 - 2021/4
N2 - The stationary life of plants has led to the evolution of a complex gridded antioxidant defence system constituting numerous enzymatic components, playing a crucial role in overcoming various stress conditions. Mainly, these plant enzymes are superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), glutathione peroxidase (GPX), glutathione reductase (GR), glutathione S-transferases (GST), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), and dehydroascorbate reductase (DHAR), which work as part of the antioxidant defence system. These enzymes together form a complex set of mechanisms to minimise, buffer, and scavenge the reactive oxygen species (ROS) efficiently. The present review is aimed at articulating the current understanding of each of these enzymatic components, with special attention on the role of each enzyme in response to the various environmental, especially abiotic stresses, their molecular characterisation, and reaction mechanisms. The role of the enzymatic defence system for plant health and development, their significance, and cross-talk mechanisms are discussed in detail. Additionally, the application of antioxidant enzymes in developing stress-tolerant transgenic plants are also discussed.
AB - The stationary life of plants has led to the evolution of a complex gridded antioxidant defence system constituting numerous enzymatic components, playing a crucial role in overcoming various stress conditions. Mainly, these plant enzymes are superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), glutathione peroxidase (GPX), glutathione reductase (GR), glutathione S-transferases (GST), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), and dehydroascorbate reductase (DHAR), which work as part of the antioxidant defence system. These enzymes together form a complex set of mechanisms to minimise, buffer, and scavenge the reactive oxygen species (ROS) efficiently. The present review is aimed at articulating the current understanding of each of these enzymatic components, with special attention on the role of each enzyme in response to the various environmental, especially abiotic stresses, their molecular characterisation, and reaction mechanisms. The role of the enzymatic defence system for plant health and development, their significance, and cross-talk mechanisms are discussed in detail. Additionally, the application of antioxidant enzymes in developing stress-tolerant transgenic plants are also discussed.
KW - Antioxidant enzymes
KW - Reaction mechanism
KW - Reactive oxygen species
KW - Secondary metabolites
KW - Stressors
UR - http://www.scopus.com/inward/record.url?scp=85103812179&partnerID=8YFLogxK
U2 - 10.3390/biology10040267
DO - 10.3390/biology10040267
M3 - Artículo de revisión
C2 - 33810535
AN - SCOPUS:85103812179
SN - 2079-7737
VL - 10
JO - Biology
JF - Biology
IS - 4
M1 - 267
ER -