Studies on UV mutation and shake-flask fermentational conditions of Streptococcus equi;

Effect of different mutation methods on enzyme system of Aspergillus oryzame;

Mutation of the Strain Producing Higher Xylanase;

Contrast on the Characteristics of Specialα-linolenic Lipid-producing Strain before and after Multi-mutagenesis;

Screening of a Strain with High Yield of Producing Fibrinolytic Enzyme by NTG Combining with UV Mutagenesis;

Preliminary studies on preparation, regeneration and ultraviolet mutagenesis of protoplast of baker's yeast;

1,3-propanediol ferment component measure and its high production bacterium mutant;

Breeding of highly productive PUFA mutant strain of Mortierella ramanniance by Co~(60) radiation;

1,3-propanediol high production bacterium ultraviolet mutant;

Diethyl sulfate induced mutation and screening of Bacillus subtilis B826.;

ZWYB1 also had stability of decoloration after induced mutation.

Induced mutations can play important roles getting over this obstacle.

the experiment in the paper chooses auto-tolerance strain of Rifamycin SV as starting strain,after compound inductions by HNO2+UV and HNO2+UV+Licl respectively,two mutated strains are rendered.

The results showed that PYM could dramatically inhibit callus induction and differentiation of explants.

The investigation field,including the effect factor of screening,structure character,chemical modification,induction,the method of isolation and separation,immobilization and the research status of low-temperature lipase from microorganim were introduced,so as to provide a ref.