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枯草芽孢杆菌无芽孢形成突变的定位:芽孢形成操纵子数量的最小估计值

Mapping of asporogenous mutations of Bacillus subtilis: a minimum estimate of the number of sporeulation operons.

作者信息

Piggot P J

出版信息

J Bacteriol. 1973 Jun;114(3):1241-53. doi: 10.1128/jb.114.3.1241-1253.1973.

Abstract

Sporulation-specific mutations in Bacillus subtilis have been mapped by transduction and transformation. The mutations caused blocks at stages 0, II, III, and IV of sporulation; more than one phenotype was found for each of these stages. On the basis of the criteria used to define a sporulation operon, a minimum estimate could be made of the number of operons activated during sporulation. Nine operons were identified for stage 0, eight for stage II, five for stage III, and six for stage IV. It is probable that several of these 28 operons are activated in groups so that the number of steps in the dependent sequence of sporulation events should turn out to be less than the number of operons.

摘要

枯草芽孢杆菌中孢子形成特异性突变已通过转导和转化进行了定位。这些突变导致孢子形成在0、II、III和IV阶段受阻;每个阶段都发现了不止一种表型。根据用于定义孢子形成操纵子的标准,可以对孢子形成过程中被激活的操纵子数量做出最低估计。确定了9个操纵子在0阶段被激活,8个在II阶段,5个在III阶段,6个在IV阶段。这28个操纵子中可能有几个是成组激活的,因此孢子形成事件依赖序列中的步骤数应该会少于操纵子的数量。

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Transducing phages for Bacillus subtilis.用于枯草芽孢杆菌的转导噬菌体。
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