Motility of wild-type and mutant F. johnsoniae and C. algicola cells on agar. Red, nonmotile; lightest green (C. algicola
gldB, for example), very slight motility; light green (F. johnsoniae sprB, for example), slight motility; medium green (C. algicola gldD, for example), moderate motility; dark green, wild-type (WT) motility; black, genes absent in the wild type. The F. johnsoniae ΔgldNO mutant was used for gldN, and the C. algicola sprBI mutant was used for sprB. C. algicola mutants are those described in the legends to Fig. 3 and 5. The F. johnsoniae mutants used were as follows: gldA, CJ101-288 (2); gldB, CJ569 (6); gldD, CJ282 (7); gldF, CJ787 (5); gldG, CJ776 (5); gldH, CJ1043 (9); gldI, UW102-41 (8); gldJ, UW102-80 (4); gldK, CJ2122 (18); gldL, CJ2157 (18); gldM, CJ2262 (18); ΔgldNO, CJ2090 (17); sprA, CJ2302 (18); ΔsprB, CJ1922 (26); sprC, UW102-91 (13); sprD, CJ1695 (13); sprE, Fj149 (14); sprF, CJ1814 (13); and sprT, KDF001 (15).