摘要
对从新疆、青海采集的盐碱土样中分离获得的 2 9株嗜碱放线菌 (alkaliphilicactino mycetes)及 1株模式菌株Nocardiopsisprasina的pH实验 ,不同碱性物质KOH、K2 CO3、NaOH、Na2 CO3对生长的影响 ,及对NaCl、KCl耐受性进行了研究。结果发现 ,少数嗜碱放线菌对Na+ 有一定的依赖性 ,对K+ 碱性物质敏感 ;一些嗜碱放线菌对CO32 敏感 ,NaCl、KCl对一些嗜碱放线菌的生长有抑制作用 ;4种碱性物质对Nocardiopsis菌株生长无影响 ,且它们可耐受高浓度NaCl、KCl。因此提出高碱性环境中是否存在K+ 、CO32 专一性依赖的嗜碱放线菌的推测。
pH, affects of different alkaline materials KOH, K 2CO 3, NaOH, Na 2CO 3 on the growth, and NaCl, KCl tolerance of 29 isolates from the saline and alkaline soils in Xinjiang and Qinghai Provinces of China and 1 type strain were studied. Results showed that only a few alkaliphilic actinomycetes were Na +-obligately dependent, and K +-sensitive. Some alkaliphilic actinomycetes were CO 3 2- -sensitive, and NaCl, KCl could inhibit their growth. 4 kinds of alkaline materials had no affect on growth of alkaliphilic Nocardiopsis, and these strains showed high tolerance to NaCl, KCl. So it was presumed that only K + and CO 3 2- obligately dependent alkaliphilic Actinomycetes maybe exist in alkaline environments.
出处
《微生物学通报》
CAS
CSCD
北大核心
2004年第1期30-35,共6页
Microbiology China
基金
国家科技部基础研究重大项目 (No 2 0 0 1CCC0 0 60 0 )
云南省自然科学基金项目 (No 2 0 0 1C0 0 0 1Q
No 2 0 0 0C0 0 1 4M)
云南省教教育厅基金项目 (No 0 1 1 1 1 1 3 4
No 0 2QJ0 77)
教育部微生物资源开放研究重点实验室开放基金资助
关键词
嗜碱放线菌
碱性物质
Na^+依赖性
Alkaliphilic Actinomycetes, Alkaline materials, Na +-obligately dependent
