Activity of Two Strong Promoters Cloned into Bacillus subtilis Osburne, Marcia S. and Craig, Robert J.,, 132, 565-568 (1986), doi = https://doi.org/10.1099/00221287-132-2-565, publicationName = Microbiology Society, issn = 1350-0872, abstract= Summary: Two DNA fragments, one encoding the Escherichia coli trc promoter and the other encoding a sequence from the early region of Bacillus subtilis phage SPO1, were cloned into the B. subtilis promoter-probe vector pPL603. Both fragments effected strong in vivo promoter activity in vegetative B. subtilis cells., language=, type=