饥饿条件下温度对假结核耶尔森菌和单核细胞增生李斯特菌中多聚磷酸盐合成的影响
Effect of temperature on synthesis of polyphosphates in Yersinia pseudotuberculosis and Listeria monocytogenes under starvation conditions.
作者信息
Buzoleva L S, Krivosheeva A M, Isachenko A S, Somova L M, Somov G P
机构信息
Institute of Epidemiology and Microbiology, Siberian Branch of the Russian Academy of Sciences, 690087 Vladivostok, Russia.
出版信息
Biochemistry (Mosc). 2006 Apr;71(4):437-40. doi: 10.1134/s0006297906040122.
It was found that at low temperature (6-8 degrees C) in the absence of nitrogen supply and at the presence of phosphate ions in the medium, Yersinia pseudotuberculosis and Listeria monocytogenes are able to actively synthesize reserve substances as polyphosphates. Most of the bacterial polyphosphates are alkali-soluble, especially at the preliminary stage of cell growth (lag-phase). This is proved by electron microscopic studies of ultrastructure of model microorganisms. During a long starvation period under conditions of carbon and energy source deficit, L. monocytogenes and Y. pseudotuberculosis consume this biopolymer for biosynthetic and bioenergetic processes.
研究发现，在低温（6 - 8摄氏度）、无氮供应且培养基中存在磷酸根离子的情况下，假结核耶尔森菌和单核细胞增生李斯特菌能够积极合成作为多聚磷酸盐的储备物质。大多数细菌多聚磷酸盐可溶于碱，尤其是在细胞生长的初始阶段（迟缓期）。对模型微生物超微结构的电子显微镜研究证实了这一点。在碳源和能源缺乏的条件下长期饥饿期间，单核细胞增生李斯特菌和假结核耶尔森菌会将这种生物聚合物用于生物合成和生物能量过程。
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