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Vc二步发酵中Na+、Ca++及pH对巨大芽孢杆菌生长作用的影响

EFFECT OF Na+、Ca++ AND PH ON GROWTH OF BACILLUS MEGATERIUM IN Vc TWO-STEP FERMENTATION

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【作者】 张舟; 朱可丽; 张海宏; 冯树; 张忠泽;

【Author】 Zhang Zhou et al.(Institute of Applied Ecology, Academia Sinica, Shenyangg 110015)

【机构】 中科院沈阳应用生态研究所!110015; 东北制药总厂;

【摘要】 200mmol/LNa+可导致对数生长期末期巨大芽孢杆菌的自溶,而这种自溶作用能被Ca++抑制;在对数生长期后期,200mmol/LNa++可使菌体提前到达稳定期;在衰亡期,200mmol/LNa+能抑制菌体的衰亡。pH6.0可导致对数生长期末期菌体的自溶,pH6.0或pH6.4能明显的抑制衰亡期菌体的衰亡。

【Abstract】 200 mmol/L Na+ could cause cellular autolysis of Bacillus megaterium in the end of log phase, which can be inhibited by Ca++. 200 mmol/L Na+ made cells in later of 1og Phase go to stationary phase earlier, however it can inhibit declination of Bacillus megaterium in decline phase. pH6. 0 could cause cel1ular autolysis in the end of log phase. pH6. 0 and pH6. 4could obviously inhibit the declination of Bacillus megaterium in decline phase.

【关键词】 巨大芽孢杆菌; 自溶; 对数生长期; 抑制;
【Key words】 Bacillus megateriun; log phase; autolysis; inhibition;
【基金】 省、市科委重点支持项目
  • 【文献出处】 微生物学杂志 ,JOURNAL OF MICROBIOLOGY , 编辑部邮箱 ,1998年03期
  • 【分类号】TQ920.5
  • 【被引频次】21
  • 【下载频次】221
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