TABLE 3.

Results of motility assays^a

B. thuringiensis strain	Colony size (cm)
	After 8 h	After 16 h	After 24 h
407 Cry−	1.3	3.5	6
407 Cry− ΔyqgB	1.4	3.2	6.4
407 Cry− ΔyqfZ	1.5	3.2	5
407 Cry− ΔyqgB ΔyqfZ	0.5	1.5	2.5
MP02b	0.5	0.9	1.1

^aAssays were conducted on soft 3% LB agar plates incubated at 37°C as described in Materials and Methods.

^bMP02 is a nonmotile B. thuringiensis variant lacking the flhA gene (9).