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细菌饥饿存活与耐受性 被引量:3

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摘要 细菌的饥饿存活是自然界中常见的现象。在饥饿条件下 ,细菌的形态和生理发生了显著的变化 ,同时表现出耐受性的提高 ,包括抗生素耐药性及其它多重耐受性。在饥饿初期合成的饥饿蛋白对耐受性的建立至关重要。许多耐受性似乎都与σ因子有关 ,此外 ,碳源饥饿诱导了环腺苷酸 (c AMP)的产生 ,磷源和氮源饥饿诱导了二磷酸鸟苷二磷酸 (pp Gpp)的积累 ,二者都作为信号分子调控细胞内一系列反应 。
出处 《国外医药(抗生素分册)》 CAS 2002年第2期49-52,共4页 World Notes on Antibiotics
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