Identification of additional genes under the control of the transcription factor sigma(F) of Bacillus subtilis

We describe the identification of five transcriptional units under the control of the sporulation transcription factor sigma(F) in Bacillus subtilis. These are csfA, csfB, csfC, csfD, and csfF, located at approximately 230 degrees, 2 degrees, 316 degrees, 205 degrees, and approximately 290 degrees, respectively, on the genetic map. Null mutations in csfA, csfB, csfC, or csfD, either alone or together, do not cause a noticeable defect in sporulation or germination.