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. 1999 Dec 21;96(26):14765–14770. doi: 10.1073/pnas.96.26.14765

Figure 3.

Figure 3

Analysis of σK-directed β-galactosidase synthesis in SpoIVFB mutant strains. Samples were collected at the indicated times after the initiation of sporulation and assayed for β-galactosidase activity. Each strain contained the gerE-lacZ fusion in the prophage SPβ, a deletion of the spoIVF operon at its normal locus (spoIVFΔ), and a copy of the spoIVF operon at amyE with either wild-type spoIVFB (WT) or a spoIVFB point mutation, as indicated.