Department of Botany, University of Rajasthan, Jaipur, 302004 Rajasthan India.
J Food Sci Technol. 2012 Oct;49(5):649-52. doi: 10.1007/s13197-011-0464-3. Epub 2011 Jul 20.
The present study was undertaken to study the effect of abscisic acid and hydrogen peroxide on the activities of antioxidant enzymes namely superoxide dismutase (SOD; E.C. 1.15.1.1), catalase (CAT; E.C. 1.11.1.6) and ascorbate peroxidase (APX; E.C. 1.11.1.11) in Syzygium cumini plant. The varying concentrations of ABA (2-8 mM/l) and H2O2 (2-8 mM/l) modulated enzyme activities differently. In general, some concentrations of the ABA and H2O2 stimulated the activities of all the three enzymes except that there was a dose dependent reduction in catalase activity in the plants treated with ABA.
本研究旨在研究脱落酸和过氧化氢对抗氧化酶活性的影响，这些酶包括超氧化物歧化酶（SOD；EC 1.15.1.1）、过氧化氢酶（CAT；EC 1.11.1.6）和抗坏血酸过氧化物酶（APX；EC 1.11.1.11）。不同浓度的 ABA（2-8 mM/l）和 H2O2（2-8 mM/l）对酶活性的调节方式不同。一般来说，ABA 和 H2O2 的一些浓度刺激了所有三种酶的活性，但在 ABA 处理的植物中，过氧化氢酶活性呈剂量依赖性降低。
