TABLE 2.

Growth of dnaK mutants at various temperatures

Strain	Relevant genotype	Doubling time at 30°C on GM17 (min)	Incubation time (days) needed to obtain colonies of 1 mm on GM17 agar plates at the following temp (in °C):
			30	33	35	37	10
MG1363	Wild type	57	1	1	1	2	6
BK8	dnaK+-erm	62	1	1	1	2	6
BK11	dnaKΔ2-erm	69	1	1	1	NG	6
BK6	dnaKΔ1-erm	120	2	NGa	NG	NG	10–11

^aNG, no growth, revertants of various sizes appearing after 2 to 6 days (<5% survival).