生物技术通报 ›› 2013, Vol. 0 ›› Issue (5): 171-176.

• 研究报告 • 上一篇    下一篇

反硝化聚磷菌的分离鉴定及其特性研究

张武刚1, 洪武林2, 郑春丽3   

  1. (1.上海清华紫光环境工程有限公司,上海 201204;2.上海立源水处理技术有限责任公司,上海 201108;3.内蒙古科技大学数理与生物工程学院,包头 014010)
  • 收稿日期:2012-11-10 修回日期:2013-05-24 出版日期:2013-05-24 发布日期:2013-05-24
  • 作者简介:张武刚,男,工程师,研究方向:水污染控制工程、应用微生物学;E-mail:wugang_zhang@gmail.com
  • 基金资助:
    国家自然科学基金项目(51264029)

Isolation,Identification and Characteristics of Denitrifying Polyphosphate-Accumulating Organisms

Zhang Wugang1, Hong Wulin2, Zheng Chunli3   

  1. (1. Shanghai Tsinghua Unisplendour Environmental Engineering Co.,Ltd,Shanghai 201204;2. Shanghai Liyuan Water Treatment Technology Co.,Ltd,Shanghai 201108;3. School of Mathematics,Physics and Biological Engineering,Inner Mongolia University of Science & Technology,Baotou 014010)
  • Received:2012-11-10 Revised:2013-05-24 Published:2013-05-24 Online:2013-05-24

摘要: 通过除磷试验、反硝化产气试验以及异染颗粒和聚-β-羟基丁酸(PHB)颗粒染色试验,从内蒙古乌梁素海湖水中筛选出一株高效反硝化聚磷菌株P1-1。经过形态、生理生化试验、BIOLOG碳源利用分析以及16S rRNA基因序列分析,鉴定该菌株为荧光假单胞菌(Pseudomonas fluorescens)。测定了菌株P1-1的生长曲线,主要研究了温度、pH对菌株P1-1的生长和除磷率的影响,结果表明培养12 h以后菌株P1-1就开始进入稳定期;菌株P1-1的最佳生长和除磷条件为温度30℃,pH8.0。

关键词: 反硝化聚磷菌, 筛选, 鉴定, 温度, pH

Abstract: Being screened by a phosphate uptake experiment, where nitrates were denitrified to gas and through inspection of metachromatic and Polyphydroxybutyrate (PHB) granules, denitrifying phosphate-accumulating organisms (DNPAOs) P1-1 was isolated from a water sample in Lake Wuliangsuhai of Inner Mongolia. According to its morphological, physiological characteristics, BIOLOG identification and the analysis of its 16S rRNA sequence, it was identified as a strain of Pseudomonas fluorescens. The growth curve shows that strain P1-1 enters stationary phase in 12 hours’ training. Meanwhile, some important factors, temperature and pH value were studied to evaluate their effect on the growth and phosphorus removal ratios of strain P1-1. The results showed that the optimal conditions for the strain’s growth and phosphorus removal are 30℃ and pH8.0.

Key words: Denitrifying phosphate-accumulating organisms (DNPAOs) , Screening Identification, Temperature pH