四川大学学报（自然科学版）2011，Vol.48Issue(6)：1391-1396,6.DOI:10.3969/j.issn.0490-6756.2011.06.030
Pb(Ⅱ)和Cd(Ⅱ)在长根菇菌丝体中的富集及其对SOD、CAT酶活的影响
Enrichment of Pb( Ⅱ ) and Cd( Ⅱ ) in Oudenmansiella radicata mycelium and its effect on SOD and CAT enzyme activity
摘要
Abstract
Oudenmansiella radicata mycelium was chosen as the research material,and its enrichment ca pability of Pb( II ) and Cd( II ) ? As well as the effect of its SOD and CAT enzyme activity under different concentrations of Pb( II ) and Cd( II ) ? Were studied. The results showed that, low concentration of Pb (II) (l00mg/L) significantly stimulated the growth of the mycelium, while high concentrations of Pb (II) and Cd( II ) inhibited its growth. With the increasing of Pb( Ⅱ ) and Cd( Ⅱ ) concentration, the en richment capability of the mycelium increased. The highest enrichment amount can reach 1. 2132 × 104 mg/kg for Pb( Ⅱ )and 1. 99872×103 mg/kg for Cd( Ⅱ ). Besides, this study also found that, Pb( Ⅱ ) and Cd( II )can increase the activity of antioxidant enzymes of Oudenmansiella radicata mycelium. Its CAT activity can reach up to 1.131 U/g (Pb( II ), 100 mg/L) and 2. 263 U/g (Cd( II ) , 1 mg/L), respective ly, and SOD activity can reach up to 13. 976 U/g (Pb( Ⅱ ), 200 mg/L) and 14. 668 U/g (Cd( Ⅱ ), 2 mg/ L), respectively.关键词
长根菇/铅/镉/生物富集/SOD/CATKey words
Oudenmansiella radicata/lead/cadmium/enrichment/SOD/CAT分类
资源环境引用本文复制引用
陈兰,陈玉霞,冯军,徐恒..Pb(Ⅱ)和Cd(Ⅱ)在长根菇菌丝体中的富集及其对SOD、CAT酶活的影响[J].四川大学学报（自然科学版）,2011,48(6):1391-1396,6.基金项目
国家自然科学基金(41171253) （41171253）
国家高技术研究发展计划(863计划)(2006AA06Z361) （863计划）
成都龙泉驿区科技发展项目 （）
