A Non-Gummy Chromogenic Strain of Azotobacter vinelandii
A Non-Gummy Chromogenic Strain of Azotobacter vinelandii
复制标题
一种非粘性显色固氮菌
作者：
Jason A. Bush;P. W. Wilson
由于棕色固氮菌威斯康星州O株在生物化学研究中的广泛应用，最近关于从该菌株转移中获得的菌落类型的观察值得更多的一般知识。正如许多研究人员所指出的（私人通讯），这种菌株的培养有时会变得比平常更“粘”，而且它们很难进一步用于生理或生物化学研究。尽管我们过去曾试图通过选择菌落来分离非粘性菌株，但这种努力只是暂时成功。
BECAUSE of the widespread use of Azotobacter vinelandii, Wisconsin strain O, in biochemical studies, recent observations concerning colonial types obtained from transfers of this strain are worthy of more general knowledge. As many investigators have noted (private communications), cultures of this strain at times become more ‘gummy’ than usual, and their further use for physiological or biochemical studies is difficult. Although we have attempted in the past to isolate a non-gummy strain by selection of colonies, such efforts have been only temporarily successful.