安徽农业科学2011，Vol.39Issue(35)：21986-21989,4.
土壤浸提液中重金属对发光杆菌T3的毒性效应
Toxicity Effects of Extraction Solutions of Soil Doped with Heavy Metals to Photobacterium phosphoreum T3
摘要
Abstract
Toxicity effects of composite pollution of heavy metals to Photobacterium phosphoreum were studied through determining the inhibition rate of Photobacterium phosphoreum in the extraction solutions of soil doped with Pb 2+, Zn2+ , Cd2+ , Cu2+ and Cr3+. The response relation [Y=( -39.596 ±15. 811) - (6.633 ±0. 802)×( -lgXCu)( -lgXZn + (59.466 ±8. 731) ×( -lgXCd)( -lgXCr)] was developed between concentration of Pb2+ , Zn2+ , Cd2+ , Cu2+ and Cr3+ in extraction solutions of soil and the inhibition rate of Photobacterium phosphoreum based on the uniform experimental design, with the principle of equivalent-effect concentration ratio method and the multiple stepwise regression. The model had significant goodness-of-fit with advantages in F-test and t-test (P < 0.05) and a high adjusted correlation coefficient (Radj2 = 0.933). The results in the internal sample validation indicated that the maximum of relative deviation between experimental and calculated values of the inhibition rate was 8. 6%. The mechanism analysis showed that the interaction between Cu2+ and Zn2+ was antagonistic effect; while the interaction between Cd2+ and Cr3+ was synergistic effect. The findings of this study underlined the necessity of further research on the antagonistic effect between Cu2+ and Zn2+ to reduce composite toxicity in heavy metal pollution control.关键词
重金属/复合污染/明亮发光杆菌T3/生物毒性/土壤浸提液Key words
Heavy metals/ Composite pollution/ Photobacterium phosphoreum T3/ Biotoxicity/ Extraction solutions of soil分类
资源环境引用本文复制引用
李兴春,信晶,杜显元,李鱼..土壤浸提液中重金属对发光杆菌T3的毒性效应[J].安徽农业科学,2011,39(35):21986-21989,4.基金项目
国家"十一五"科技支撑项目(2008BAC43B01). （2008BAC43B01）
