Gould G W, Dring G J
Nature. 1975 Dec 4;258(5534):402-5. doi: 10.1038/258402a0.
The extreme resistance of bacterial endospores to heat may result from dehydration of the central protoplast brought about and maintained by osmotic activity of expanded electronegative peptidoglycan polymer, and positively charged counterions associated with it, in the surrounding cortex. The cortex may thus act as a specialised osmoregulatory organelle. Changes in the environment which would be expected reversibly to affect osmotic properties alter the heat resistance of spores.
细菌芽孢对热的极端抗性可能源于中央原生质体的脱水，这种脱水是由周围皮层中膨胀的带负电的肽聚糖聚合物及其相关的带正电的抗衡离子的渗透活性引起并维持的。因此，皮层可能充当一种特殊的渗透调节细胞器。预期会可逆地影响渗透特性的环境变化会改变芽孢的耐热性。
