TABLE 1.

Mineral content of B. subtilis N spores sporulated at 30, 37, and 44°C; H spores; and remineralized spores

Spore type	Sporulation temp (°C)	Spore mineral content (μmol/mg [dry wt] of spores)a
		Ca2+	Mg2+	Mn2+	K+
N	30	0.108*	0.011*	0.001*‡	0.041*
	37	1.101†	0.128†	0.005*†	0.253†
	44	0.544‡	0.070‡	0.005†	0.149‡
H	30	0.056*	0.003*	0.000‡	0.005§
	37	0.055*	0.004*	0.000‡	0.018*§
	44	0.050*	0.002*	0.001†‡	0.017§
Remineralized
Cab		1.319§	0.004*	0.000‡	0.013*§
Mg		0.100*	0.301§	0.000‡	0.003§
Mn		0.059*	0.005*	0.076§	0.023*§
K		0.050*	0.003*	0.000‡	0.282†

^aMean values in the same column that are not followed by the same symbol are significantly different (P < 0.05).

^bThe spores sporulated at 37°C were used for preparation of remineralized spores.