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Superoxide Dismutase: A Stable Biochemical Marker for Abiotic Stress Tolerance in Higher Plants

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Title Superoxide Dismutase: A Stable Biochemical Marker for Abiotic Stress Tolerance in Higher Plants
Not Available
 
Creator Mukesh Berwal and Chet Ram
 
Subject superoxide dismutase, isoforms, ROS, stress tolerance
 
Description Not Available
Superoxide dismutases (SODs) are ubiquitous metalloenzymes that constitute
the first line of defense against reactive oxygen species (ROS). It constitutes one of
the major enzymatic components of detoxification of superoxide radicals generated
in biological system by catalyzing its dismutation to H2O2 and finally to H2O
and O2 by catalase and peroxidase. Most plant species contain numerous SOD
isoforms differing in their active site metal ions, namely Cu/Zn-SOD, Mn-SOD,
and Fe-SOD. Many studies also reported that the tolerance level of plants is positively
correlated with SOD activity as well as with the number of SOD isoforms,
and established the fact that “More the SOD Activity, More the Stress Tolerance.”
Therefore, the SOD isozyme profile of any plant can be used as stable marker
for stress tolerance in plant. In this chapter, we have discussed the role of SOD in
abiotic stress tolerance, type of SODs, and correlation of its activity and its isoforms
with stress tolerance level.
Not Available
 
Date 2019-04-10T04:59:54Z
2019-04-10T04:59:54Z
2018-11-01
 
Type Book chapter
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/18369
 
Language English
 
Relation Not Available;
 
Publisher IntechOpen