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微生物突变株具有多种用途。在突变株中凡丧失利用无机氮源合成自身氨基酸能力的又称“氨基酸缺陷型”突变株(以下简称MS_(AA)),“营养缺陷型”则是多种突变株的总称。 凡属“回复突变”敏感的突变菌株,通常兼具有“DNA修复系统缺陷”,也即在
Microbial mutants have multiple uses. Amino acid-deficient mutants (MS_ (AA)), also known as “auxotrophs”, are the general term for a variety of mutants in mutants that lose the ability to synthesize their own amino acids using inorganic nitrogen sources. Mutant strains that are “back-mutated” are usually both deficient in “DNA repair system”