auxotrophic mutant

The optimal conditions for protoplast isolation and regeneration of4 auxotrophic mutant strains of Trichoderma were studied.

研究了4种营养缺陷型产纤维素酶菌的原生质体形成和再生条件。

Some associations of species are almost a form of commensalism.

有些种类的组合几乎是共栖的形式.

the symbiosis behavior mode of enterprise and farmer household include commensalism, dissymmetry mutualism and symmetry mutualism.

企业与农户共生行为模式包括偏利共生、非对称性互惠共生和对称性互惠共生三种。

This nest is called the mixed nests is indeed heterogeneous commensalism.

这种蚁巢叫做混合性蚁巢,实为异种共栖.

By using microcalorimetry method, we have studied ura auxotrophic mutant of saccharomyces cerevisiae AY, and 3 strains transformed from saccharomyces cerevisiae AY by plasmids.

用微量热法研究了尿嘧啶缺陷型酿酒酵母AY，和该菌株分别经穿梭质粒pYLZ-2、重组质粒pYLZ-2/f27、pYLZ-2/622转化的3种菌株的生长代谢热动力学。

Commensalism phenomenon of composite controlled flying saucer

碟式飞行器复合控制的共栖现象

Mutagenic Effects of Laser on Auricularia auricula and Selection of Auxotrophic Mutant

黑木耳激光诱变及营养缺陷型突变体筛选

Auxotrophic Mutant Selection and Protoplast Fusion in Saccharomyces cerevisiae

啤酒酵母（saccharomyces cerevisiae）营养缺陷型的筛选及原生质体融合

Nine auxotrophic mutant strains were obtained by using~ ( 60) Co-γ ray irradiating Auricularia basidiospores.

利用~（60）Co&γ射线辐照木耳担孢子，获得了9株营养缺陷型突变体。