TABLE 3.

Sporulation frequency of mutants containing different S14 proteins

Strain	CFU ml−1a		Frequency (%)a
	Total	Spores
Wild type	7.4 × 108	6.3 × 108	87 ± 6.7
(ΔS14BsC−)	8.4 × 108	6.6 × 108	79 ± 2.5
S14BsC+	6.3 × 108	5.1 × 108	81 ± 4.4
S14BsC−	6.4 × 108	2.7 × 108	42 ± 6.4
S14Ec	5.0 × 108	1.1 × 106	0.22 ± 0.1
S14Se	5.7 × 108	4.4 × 103	0.00064 ± 0.00011
S14Ec Δspo0E	7.2 × 108	3.3 × 108	46 ± 4.7
S14Se Δspo0E	6.3 × 108	1.7 × 106	0.29 ± 0.076

^aMeans of three independent experiments (±standard deviation for sporulation frequency).