摘要
Abstract
In order to investigate the effects of seed soaking with exogenous NO on seed germination, activities of antioxidant enzymes of Allium mongolicum Regel. under NaCl stress. The experiment used the seed of A. mongolicum as experiment material to explore the effect of different concentrations of NO soaking different times on A. mongolicum seed germination ,hypocotyl ,radicle length and dry weight, as well as the effect of SOD ,CAT,POD ,APX and content of MDA. In our study, the soaked seeds with 0.40 mmoL/L NO for 3 hours could significantly(P ＜ 0.05 )enhance the germination percentage, germination rate, germination index, vigor index ,length and dry weight of cotyledon and radicie, meanwhile this treatment could increase the activitvies of antioxidant enzymes:SOD, CAT,POD ,APX,additionally under NaCl stress,lipid proxidation of the seed of A. mongolicum was promoted,therefore the content of MDA was increased, but oxidative damage of seed is relieved under the treatment of 0.40 mmoL/L exogenous NO and lipid proxidation was reduced.关键词
沙葱/种子萌发/NaCl胁迫/抗氧化物酶/外源N0Key words
Allium mongolicum Regel /Seed germination /NaCl stress /Antioxidant enzymes/ Exogenous NO分类
农业科技
