auxotroph

基本解釋

An auxotroph requires, in addition to the principal carbon source, one or more organic nutrients.
缺陷營養(yǎng)生物除需要主要碳源外，還需要一種或幾種有機養(yǎng)料。
The reverse frequency of donor and receptor for auxotroph and resistance is less than 10~(-9), protoplast transformation is carried out in SMM containing 30% oolyethene glycol (MW 6000) and 20mg/ml DNA at controtledtime and temperature.
轉(zhuǎn)化子有的是原養(yǎng)型,有的在含利福平(10單位/亳升)和鏈霉素(200單位/亳升)的培養(yǎng)基上能生長,也有的兼而有之。
Original strain, Corynebacterium glutamicum AS1542, was mutanted by DES and UV. protoplast irradiation. Finally, a higher L-tryptophan producing strain,T11-6 was obtained. It was a double auxotroph of phenylalanine and tyrosine.
以谷氨酸棒桿菌AS1542為出發(fā)菌株，經(jīng)過硫酸二乙酯誘變和紫外原生質(zhì)體誘變，定向選育出一株穩(wěn)定的色氨酸生產(chǎn)菌T11－6，該菌株具有苯丙氨酸、酪氨酸雙重營養(yǎng)缺陷及對氟苯丙氨酸、5-甲基色氨酸、6-氟色氨酸三種結(jié)構(gòu)類似物抗性遺傳標(biāo)記。
Study on the Auxotroph of Wood Ear Fungi-Auricularia
黑木耳與毛木耳營養(yǎng)缺陷型誘變研究
Keywords mutagenesis;Ura auxotroph;growth property;fermentation;
誘變;尿嘧啶缺陷型突變株;生長特性;發(fā)酵;