營養(yǎng)缺陷型,營養(yǎng)突變體

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(jī)養(yǎng)料。

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;

Keywords brevibacterium flavum;L-leucine;auxotroph;fermentation; 黃色短桿菌;L-亮氨酸;營養(yǎng)缺陷型;發(fā)酵;

營養(yǎng)缺陷型的,營養(yǎng)缺陷的

營養(yǎng)缺陷型