山东农业科学2016，Vol.48Issue(6)：23-27,5.DOI:10.14083/j.issn.1001-4942.2016.06.006
烯效唑对不同耐旱性甘薯品种苗期根系抗氧化酶同工酶的影响
Effects of Uniconazole on Antioxidant Enzyme Isoenzymes in Seedling Roots of Sweet Potato Varieties with Different Drought Tolerance
摘要
Abstract
The effects of uniconazole on soluble protein content and antioxidant enzyme isoenzymes in seedling roots of JS21 with stronger drought resistance and JZS1 with weaker drought resistance were re-searched by simulating the field drought stress with PEG -6000 in hydroponics.The results showed that under the normal treatment,uniconazole had no significant effects on protein contents of the 2 varieties.Under the drought stress,the soluble protein content of JZS1 increased and the stripe2 ~stripe4 were obviously thick-ened,while that of JS21 decreased and the stripe3 and stripe4 was thinner and lighter.Under the normal treat-ment,uniconazole could increase the isoenzyme expression quantities of SOD2,SOD3 of JS21 and CAT2, CAT3 of JZS1 and had no obvious effects on that of SOD of JZS1,POD of the 2 varieties and CAT of JS21. Compared with the normal treatment,the isoenzyme expression quantities of SOD1,SOD2,POD2 of JZS1 and POD2,POD3 of JS21 increased,that of SOD2 of JS21 decreased under drought stress.Under the drought stress,uniconazole could increase the isoenzyme expression quantities of SOD1,SOD2,POD1,POD3,CAT2 and CAT3.In conclusion,uniconazole could more obviously enhance the isoenzyme expression quantities of antioxidant enzymes in sweetpotato with weaker drought resistance than that with stronger drought resistance under drought stress.关键词
干旱/甘薯/苗期/根系/烯效唑/抗氧化酶同工酶/可溶性蛋白Key words
Drought/Sweet potato/Seedling stage/Roots/Uniconazole/Antioxidant enzyme isoenzyme/Soluble protein分类
农业科技引用本文复制引用
姜瑶,汪宝卿,解备涛,张海燕,段文学,王庆美,张立明..烯效唑对不同耐旱性甘薯品种苗期根系抗氧化酶同工酶的影响[J].山东农业科学,2016,48(6):23-27,5.基金项目
国家现代农业产业技术体系建设专项 （）
