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芽孢是炭疽芽孢杆菌为应对不适的外界环境而形成的一种生命形式,休眠期的芽孢可以通过萌发恢复生长成为繁殖体。萌发过程作为关键步骤,可以由营养萌发剂和一些非营养类物质或者在其他情况下触发。在萌发过程中,萌发剂通过与存在于芽孢内膜上的萌发剂受体结合来触发芽孢核内各种阳离子的释放以及芽孢核对水的吸收。在芽孢皮层的肽聚糖被酶水解后,芽孢核逐渐完全水合化,开始进行新陈代谢以及大分子的合成活动,逐渐成长为一个新的营养细胞。该文将从萌发受体、芽孢皮层水解酶功能等方面对炭疽菌芽孢萌发机制进行阐述。
Bacillus sp. Bacillus anthracis to deal with discomfort outside the environment and the formation of a form of life, dormant spores can be restored by germination and growth into a propagule. The germination process, as a key step, can be triggered by nutritional germination agents and some non-nutritive substances or in other situations. During germination, the germination agent triggers the release of various cations within the spores of the spores and the absorption of water by the spores of the spores by binding to germination receptors present on the inner membrane of the spores. When the peptidoglycan of the sporodermis is enzymatically hydrolyzed, the spore nuclei gradually become completely hydrated and the metabolism and the synthesis of macromolecules begin to be gradually started to grow into a new vegetative cell. This article will germinate germination mechanism of anthrax spores from germination receptor, spore cortical hydrolase function and so on.