生物技术通报2017，Vol.33Issue(10)：156-162,7.DOI:10.13560/.cnki.biotech.bull.1985.2017-0587
一株抗锌菌的分离鉴定及其对印度芥菜修复锌污染土壤的影响
Isolation and Identification of a Zinc-resistant Strain and Effect of Its Characteristics on the Remediation Efficiency of Brassica juncea in Zinc-polluted Soil
摘要
Abstract
A zinc-resistant strain was isolated from heavy metal-polluted soil,and identified as Bacillus. Its performance of removing Zn2+ under different experimental conditions was studied. The results showed that :the removal efficiency of Zn2+ was the best,and the removal rate of Zn2+ was 94% in 12 h when the initial concentration of Zn2+ was 300 mg/L,the temperature was 37℃,inoculation amount was 5%. Subsequently,a pot experiment was conducted for investigating the influence of adding the different concentration of the strain on plant growth and Zn uptake by Brassica juncea. The results showed that the Zn content in ground and underground part of B. juncea increased by 56.1% and 24.3% respectively while adding 40 mL bacterial liquid(1×109 CFU/mL),compared with the control group. This is mainly due to the strain improves the zinc content under weak acid extraction condition.关键词
抗锌菌株/菌株筛选/Zn2+去除率/印度芥菜Key words
zinc-resistant strain/screening/Zn2+removal efficiency/Brassica juncea引用本文复制引用
陈徉,宋天顺,周国玲,谢婧婧..一株抗锌菌的分离鉴定及其对印度芥菜修复锌污染土壤的影响[J].生物技术通报,2017,33(10):156-162,7.基金项目
江苏省高校自然科学研究重大项目(15KJA530002) （15KJA530002）
