National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Differential response of CAT1, CAT2 and CAT3 indicated the positive correlation of catalase and H2O2 accumulation in C306 under control, H2O2, NaCl and NaCl+H2O2 treatments accompanied with enhancement of SOD activity in flag leaves of the drought tolerant wheat cultivar. SOD activities provide extra protection in combination with catalase in wheats under oxidative stresses. The POX and SOD activity enhancement in flag leaves was positively associated with plant height and leaf size reduction under salt stress in wheats. The differential accumulation of H2O2 is cultivar specific and associated with SOD isoforms (CuZnSOD) that is involved in lignin biosynthesis. CuZnSOD or CAT were not inhibited under salt stress suggest that it is superoxide rather than other forms of ROS mediating proline oxidase induced apoptosis. Proline accumulation/ oxidation alter the intracellular redox status by proline oxidase inhibition by MnSOD and superoxide dismutation to H2O2 which is utilised by POX for lignin biosynthesis.
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