欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (21): 368-371.

所属专题： 土壤重金属污染； 农业生态

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

铜尾矿废弃地耐铜菌株的筛选及其对重金属抗性研究

李军红 田胜尼 魏兆军 张强 刘鑫   

  • 收稿日期:2010-04-06 修回日期:2010-05-05 出版日期:2010-11-05 发布日期:2010-11-05

Screening of copper-tolerance strains in Copper tailings wasteland and their resistance on heavy metals

  • Received:2010-04-06 Revised:2010-05-05 Online:2010-11-05 Published:2010-11-05

PDF (PC)

1034

摘要：

摘要：通过在固体培养基中加入一定浓度的Cu2+，从铜尾矿废弃地的土样中筛选分离得到一株耐铜菌株。研究结果发现，该菌株最高耐受Cu2+浓度为390 mg?L-1。菌株特性结果表明，该菌株最适生长温度在30℃左右，最适生长pH值为中性，但对渗透压耐受力不是很强。除对Cu2+具有耐性外，该菌对重金属Zn2+、Pb2+也具有较强抗性。

关键词: 翻白叶树, 翻白叶树, 扦插繁殖, IBA, NAA

Abstract:

Abstract: Isolation of copper-resistant bacteria from copper tailings wastealand was investigated, which was screened from solid mediums containing a certain concentration Cu2+. The results showed that the highest tolerance concentration of heavy metal Cu2+ for this strain was 390 mg?L-1. Strain characteristics of the results showed that the optimum growing temperature was around 30℃, and the optimum growing pH value was neutral, but osmotic tolerance of this srtain was not very strong. In addition to Cu2+, this strains also showed a strong resistance on the heavy metal Zn2+ and Pb2+.