期刊论文

Wu, X.-F.

中文

生态学杂志

1000-4890

2015

34

9

2665-2672

10.13292/j.1000-4890.2015.0244

(201509037):环保公益性行业科研专项 (2013ZX07504001):国家水体污染控制与治理科技重大专项 (2012BAC09B03):国家“十二五”科技支撑计划项目 :湖南省环境科学与工程重点学科建设项目资助

本校为第一且通讯机构

以铅锌矿渣盆栽试验中长势较好的耐性植物夹竹桃(Nerium indicum)的根际土壤为材料,进行耐铅锌优势菌株的分离鉴定,探讨影响铅锌吸附的因素及其吸附机理。结果表明:(1)从土样中分离筛选出3株耐铅锌菌株(B1、B4、B14),3株菌均能在Pb~(2+)、Zn~(2+)浓度为600 mg ? L~(-1)的牛肉膏蛋白胨培养基上生长,经形态和分子生物学鉴定分别为蜡样芽孢杆菌(Bacillus cereus)或炭疽杆菌(Bacillus anthracis)、解硫胺素硫胺素芽孢杆菌(Aneurinibacillus aneurinilyticus)和藤黄微球菌(Micrococcus luteus)。(2)对影响菌株吸附铅、锌的pH、吸附时间、初始菌量3个因素进行分析,发现菌株B1在pH为5.0、吸附时间为50 ...

Rhizosphere soil samples were collected from plants Nerium indicum, which grew well in a pot experiment with lead and zinc slag as substrates. The bacterial strains resistant to lead and zinc were isolated and identified, and the factors influencing lead and zinc adsorption and the adsorption mechanism were discussed. The results showed that: (1) Three bacterial strains (B1, B4, B14) could grow on the beef extract peptone medium that concentrated Pb2+ and Zn2+(600 mg · L-1). Based on morphology and molecular biology, B1, B4, and B14 were ident...