select ad.sno,ad.journal,ad.title,ad.author_names,ad.abstract,ad.abstractlink,j.j_name,vi.* from articles_data ad left join journals j on j.journal=ad.journal left join vol_issues vi on vi.issue_id_en=ad.issue_id where ad.sno_en='44242' and ad.lang_id='5' and j.lang_id='5' and vi.lang_id='5' Enzymatic Analysis of Superoxide Dismutase (SOD) from Hordeu | 44242
Journal de biochimie et de physiologie végétales

Journal de biochimie et de physiologie végétales
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ISSN: 2329-9029

Abstrait

Enzymatic Analysis of Superoxide Dismutase (SOD) from Hordeum vulgare: Its Role in Drought Stress Tolerance

Narayani Shukla*, Yashodhara Varma

Superoxide dismutases (SODs) are ubiquitous metalloenzymes that constitute the first line of defense against reactive oxygen species. The role of SOD in neutralizing free radical production has already been documented. In the present investigation we have attempt to study kinetic properties of SODs in three drought sensitive and drought resistant varieties of H. vulgare. The results demonstrated that SOD displayed decreased affinities of substrate binding to their corresponding enzymes under drought conditions. The SOD isozymes profile was also analyzed and it was found that under drought conditions the only two SOD isozymes expressed as against three isozymes expressed under control. These data suggest that the decreased substrate binding affinity to SODs as well as decrease in one isozyme band of SOD under drought condition may be responsible for resistance. These findings may be used to develop drought resistance varieties of other crops. 

Clause de non-responsabilité: Ce résumé a été traduit à l'aide d'outils d'intelligence artificielle et n'a pas encore été révisé ou vérifié.
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