Fig. 5.

Spo0A∼P controls two parallel pathways of repression and antirepression during the transition to stationary phase. The SinR repressor is largely dedicated to genes involved in biofilm formation whereas AbrB controls a wide variety of genes, including genes for biofilm formation, competence and cannibalism. The AbrB and SinR repressors are each subject to antirepression by AbbA and SinI, respectively, whose synthesis is induced by Spo0A∼P. Also shown is that abrB is subject to repression by Spo0A∼P and autorepression.