Mh. Rashid et J. Sekiguchi, FLAD (SINR) MUTATIONS AFFECT SIGD-DEPENDENT FUNCTIONS AT MULTIPLE POINTS IN BACILLUS-SUBTILIS, Journal of bacteriology, 178(22), 1996, pp. 6640-6643
A flaD (sinR) null mutation depressed sigD-lacZ expression only two- t
o fourfold, whereas a flaD1 point mutation depressed it almost complet
ely. Introduction of pHYSigD, a sigma(D)-overproducing plasmid, correc
ted the filamentous phenotype common to both sinR mutants; autolysin s
ynthesis was restored partially and completely in the flaD1 and flaD (
sinR) null strains, respectively. Flagellin synthesis and motility wer
e not restored at all in either strain.