Biotechnology Bulletin ›› 2015, Vol. 31 ›› Issue (2): 173-178.doi: 10.13560/j.cnki.biotech.bull.1985.2015.02.026

• Research Report • Previous Articles     Next Articles

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 Online:2015-02-05 Published:2015-02-06

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