摘要
从处理含盐 (NaCl浓度为 0 77mol L)苯乙酸生产污水的耐盐活性污泥中分离到一株节杆菌 (Arthrobactersp A1) .该菌株能在NaCl浓度为 0 1mol L— 2 0mol L ,以苯乙酸为唯一碳源的基础培养基中生长 ,或在NaCl浓度为 0mol L— 2 4mol L的完全培养基中生长 ,并能适应急剧的盐浓度变化 .对其它常见的低价态无机盐份如KCl、MgCl2 、(NH4) 2 SO4、Na2 SO4、CaCl2 也具有较强的耐受性 ,而对高价态无机盐份和重金属盐则耐受性不强 .在不同的NaCl浓度下 ,菌株A1细胞内的QAC(季胺化合物 )、游离氨基酸和K+
A strain of bacterium identified as \%Arthrobacter\% sp. A1 was isolated from activated sludge produced in the treatment of hapersaline waste water. This strain was able to grow in NaCl concentration of 0 1?mol/L-2 0?mol/L and phenyl acetic acid as the sole source of carbon and energy. The characteristics of this strain were studied, it survived the sudden salt concentration change and othes low valunce salts as KCl,MgCl 2,(NH 4) 2SO 4,Na 2SO 4 and CaCl 2, but no resistance to heavy metal salt. it was found that the intracellular accumulation of K +, free amino acid and QAC increased with the increasing of salinity.
出处
《环境科学学报》
CAS
CSCD
北大核心
2002年第3期374-378,共5页
Acta Scientiae Circumstantiae
基金
江苏省环保厅资助
