Abstract
Previous work has indicated that loss of ability of DNA dependent RNA polymerase, from stationary phase cultures of B. subtilis , to transcribe phage øe DNA was a sine qua non for sporulation. To ascertain if this change in template specificity was sporulation-specific, we repeated these experiments using a defined sporulation medium. The changes observed previously did not occur in the defined medium although sporulation was normal. The ability of the enzyme to transcribe other DNA templates was also examined. Similar studies were carried out using a polymerase from a rifamycin-resistant, sporulation conditional mutant. The significance of these findings with regard to the regulation of sporulation in B. subtilis is discussed.
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More From: Biochemical and Biophysical Research Communications
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