Biodiv Sci ›› 2009, Vol. 17 ›› Issue (3): 288-295.  DOI: 10.3724/SP.J.1003.2009.08251

• Editorial • Previous Articles     Next Articles

Diversity of culturable halophilic bacteria isolated from Lop Nur region in Xinjiang

Ming Luo1,*(), Jian Han1, Pingan Jiang2, Hongqi Wu2   

  1. 1 Agronomy Faculty, Xinjiang Agricultural University, Urumqi 830052
    2 College of Grassland and Environmental Science, Xinjiang Agricultural University, Urumqi 830052
  • Received:2008-09-27 Accepted:2009-05-15 Online:2009-05-20 Published:2009-05-20
  • Contact: Ming Luo

Abstract:

We investigated the community structure and diversity of the culturable halophilic bacteria in Lop Nur, Xinjiang using amplified ribosomal DNA restriction analysis (ARDRA). Restriction enzyme HinfI was applied in ARDRA of 108 halophilic bacterial strains, and 12 operational taxonomic units (OTUs) were assigned on the basis of the ARDRA patterns. Each OTU was randomly chosen for 16S rRNA gene sequencing. The phylogenetic analysis on the basis of 16S rRNA gene homology showed that all isolates affiliated to nine genera, consisting of Halobacillus, Bacillus, Brevibacterium, Halomonas, Chromohalobacter, Salinicoccus, Kocuria, Staphylococcus, Micrococcus, and a possible novel taxon. Halomonas strains dominanted among the isolates, and followed by Chromohalobacter and Halobacillus members. The strains of Halomonas were performed ERIC-PCR (enterobacterial repetitive intergenic consensus-PCR) analysis, and 21 ERIC-PCR fingerprinting types were determined. The results suggest that the halophilic bacteria are abundant, and some unknown taxa can exist in Lop Nur.

Key words: ARDRA, ERIC-PCR, diversity, extemophiles, culture collection