WANG Fang,LI Zhang lei,CHEN Ting ting,et al.Study on Screening Cd2+ and Cu2+ Tolerant Microbe and its Adsorption Characteristics[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(03):48-52.
土壤中耐Cd2+和Cu2+微生物的分离及吸附特性的研究
- Title:
- Study on Screening Cd2+ and Cu2+ Tolerant Microbe and its Adsorption Characteristics
- 文章编号:
- 1002-2767（2014）03-0048-05
- Keywords:
- microbe; Cd2+; Cu2+; screening; adsorption; heavy metal pollution
- 分类号:
- S154
- 文献标志码:
- A
- 摘要:
- 为了研究重金属污染的生物治理措施，采用马铃薯培养基从土壤中分离筛选获得了具有耐Cd2+和Cu2+菌株，对该目标菌株进行了形态学观察和生长特性的测定，采用原子吸收法测定了该菌株对Cd2+和Cu2+的吸附能力。结果表明：初步确定所获得的目标菌株属于酵母菌类，最适生长pH为8.5，最适生长温度为28℃。该目标菌株对Cd2+的最高耐受浓度为16 mmol?L-1，对Cu2+的最高耐受浓度为4 mmol?L-1。该目标菌株对Cd2+和Cu2+的最大吸附率和最佳吸附时间不同。
- Abstract:
- In order to study the biological treatment measures of heavy metal pollution,the resistance strain for Cd2+ and Cu2+ was separated from soil by using potato medium,and its characteristics，including the colony morphology,growth,adsorption to Cd2+,Cu2+，were measured.The results showed that the target strain was identified as the yeast,the optimum growth pH was 8.5,the optimum growth temperature was 28℃.For the aim strain,the highest concentration of tolerance to Cd2+ and Cu2+was at about 16 mmol?L-1,4 mmol?L-1 respectively.The target strain was different between the maximum adsorption rate and adsorption time for Cd2+ and Cu2+.
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备注/Memo
收稿日期：2013-10-09基金项目：北京市基础性学科专业人才培养模式改革资助项目(2011);中央民族大学精品课程建设资助项目(2011);生物技术专业综合建设资助项目(2011);中央民族大学本科生研究训练计划资助项目(URTP2012110032)第一作者简介：王芳(1991-),女，云南省红河哈尼族彝族自治州人，在读学士，从事环境微生物资源开发研究。E-mail:wf396756596@163.com。通讯作者：周宜君(1964-),女,博士,教授,从事生物资源开发教学与科研工作。E-mail:zhouyijun@muc.edu.cn。