Loss of heat resistance of ΔgerP mutants in Ca-DPA.

aSpores were incubated in 60 mM Ca-DPA for 30 minutes at 37°C. Results are the average of four experiments with two independent spore preparations. Standard error of the mean was ≤12% of the mean in all instances.将孢子（spores）置于60 mM钙二吡啶甲酸（Ca-DPA）溶液中，于37℃条件下孵育30分钟。实验结果为四次独立实验的平均值，每次实验均采用两份独立制备的孢子样品；所有实验场景下，均值标准误（standard error of the mean）均不超过平均值的12%。