河南农业科学2012，Vol.41Issue(7)：37-41,5.
Hg2+、Pb2+对野生型绿豆种子萌发、幼苗生长及抗氧化酶活性的影响
Effects of Hg2+ and Pb2+ on Seed Germination,Growth and Antioxidant Enzymes Activities of Wild Type Mung Bean
摘要
Abstract
In order to investigate the different effects of heavy metal pollution on wild and cultivated-type mung bean,effects of pollution of single and combined heavy metal ions of Hg2+,Pb2+,Hg2+ and Pb2+ on the seed germination,growth and antioxidant enzymes activities of mung bean seedling were studied by hydroponics culture in pots, with the deionized water culture as control (CK). The results showed that the seed germination and seedling growth were inhibited under the pollution of single and combined ions of Hg2+ and Pb2+, followed by (Hg2++Pb2+) > Hg2+>Pb2+. The germination percentage, seedting length and root length of type P mung bean reduced by 25. 8% ,48. 1% and 79. 7% compared with the control under (2.0 + 100) mg/L of (Hg2++Pb2+) stress,and these indicators of wild type mung bean reduced by 22. 4% ,44. 7% and 70. 0% respectively. In addition,the antioxidant enzymes activities of leaf were increased observably after the heavy metal treatment. The activities of SOD, POD and CAT of type P mung bean increased by 113. 7%,304% and 254% under (2. 0+100) mg/L of (Hg2++Pb2+ ) stress, and the activities of SOD,POD and CAT of wild type mung bean increased by 131% ,333% and 278% compared respectively with the control. It was concluded that the seed germination, growth and antioxidant enzymes activities of wild type mung bean were more significant than those of the type P mung bean under Hgl+,Pb2+and (Hg2+Pb2+) stress.关键词
栽培型绿豆/野生型绿豆/重金属/汞离子/铅离子/种子萌发/幼苗生长/抗氧化酶Key words
cultivated type mung bean/wild type mung bean/heavy metal/Hg2+/Pb2+/seed germination/seedling growth/antioxidant enzyme分类
农业科技引用本文复制引用
常云霞,陈璨,阮先乐,吴苗苗,陈龙..Hg2+、Pb2+对野生型绿豆种子萌发、幼苗生长及抗氧化酶活性的影响[J].河南农业科学,2012,41(7):37-41,5.基金项目
河南省教育厅自然科学研究计划资助项目(2009B180029) （2009B180029）
周口师范学院生物化学与分子生物学重点学科建设项目 （）
