【摘要】 通过研究近30株嗜盐或耐盐放线菌在不同浓度的Na+,K+,Mg2+,Ca2+条件下的生长范围,发现耐盐放线菌对Na+,K+,Mg2+有广泛的适应性。只有少数耐盐放线菌能在较底浓度的CaCl2条件下生长;多数嗜盐放线菌生长所需的Na+可被K+,Mg2+所替代,而不能被Ca2+所替代,少数嗜盐放线菌的生长离不开Na+,对Na+有高度的专一性。因此,提出自然环境中是否也存在类似的专嗜K+或专嗜Mg2+的嗜盐放线菌的推测。更多还原

【Abstract】 In this paper,the grower ranges of about 30 stems Halophilic（Halotolerant）actinomyce in the mineral salts Na⁺,K⁺,Mg²⁺ of different concentrations were studied.The results show that firstly,Halophilic actinomycete are extensive suited to live the mineral Na⁺,K⁺,and Mg²⁺.Secondly,the minority of them can grow in low concentrations Cacl₂;Thirdly,the essential Na⁺ of growing can been substituted for K⁺,Ma²⁺,but can not been replaced by Ca²⁺ for most of Halophilic actinomycetes.A few among them can not grow without the mineral salts Na⁺ and is adapted highly to it.Finally,We offered that there may exist similar Potassiumphilic acyinomycetes or Magnesiumphilic actinomycetes strins in natural environments.更多还原