生物技术通报 ›› 2015, Vol. 31 ›› Issue (2): 173-178.doi: 10.13560/j.cnki.biotech.bull.1985.2015.02.026

• 研究报告 • 上一篇    下一篇

一株解磷细菌的筛选、鉴定及其溶磷培养条件的优化

黄达明, 李倩, 管国强, 张志才, 钱静亚, 宋庆春   

  1. 江苏大学食品与生物工程学院,镇江 212013
  • 收稿日期:2014-06-10 出版日期:2015-02-05 发布日期:2015-02-06
  • 作者简介:黄达明,男,教授,研究方向:农产品生物转化及综合利用;E-mail:damingh@163.com

Selection,Identification and Medium Optimization of a Phosphate-solubilizing Bacterium

Huang Daming, Li Qian, Guan Guoqiang, Zhang Zhicai, Qian Jingya, Song Qingchun   

  1. College of Food and Biology Engineering, Jiangsu University, Zhenjiang 212013
  • Received:2014-06-10 Published:2015-02-05 Online:2015-02-06

摘要: 从土壤作物根际筛选分离出的一株解磷能力较强的溶磷菌P0417,对其进行16S rDNA基因水平上的初步鉴定,测定其溶解磷的能力,并对该菌的溶磷培养基条件进行优化。结果表明,经序列分析,确定该菌株P0417为洋葱伯克霍尔德氏菌。且其溶磷能力与培养液pH呈显著相关性,当培养基条件为葡萄糖10 g/L、草酸铵0.5 g/L、NaCl 1.0 g/L时,菌株P0417对Ca3(PO42 盐培养基具有较好的解磷能力,其解磷能力可达791.84 μg/mL。

关键词: 溶磷细菌, 筛选, 鉴定, 条件优化, 解磷能力

Abstract: A phosphorus-dissolving bacterial strain P0417 was isolated from crop rhizosphere soil and identified by the genetic identification of 16S rDNA, measuring capability of phosphate-solubilization and optimization of medium components here. The result demonstrated that the bacterium was identified as Burkholderia cepacia. And the capacity of dissolving the phosphate was closely correlated with the pH of its culture medium, the strain showed high phosphate-dissolving ability of 791.84 μg/mL in Ca3(PO42 culture medium at glucose, 10 g/L;Ammonium oxalate, 0.5 g/L;NaCl, 1.0 g/L.

Key words: phosphorus-dissolving bacterial strains, selection, identification, medium optimization, phosphate-dissolving ability