Structure changes of bacteria community in 24 solar terms at No.10 spring Urumqi

Abstract

Urumqi No.10 spring is located in the fracture zone of Willow ditch鄄Hongyanchi in southern Urumqi, and is one of the most important national key hydrological observation points. The spring water contains various geochemical elements, such as sulfide, methane, hydrogen, radon, sulfide, methane, carbon dioxide, helium, fluorine and mercury. Microbes living in the spring are intensely affected by hydro鄄geochemical changes caused by movements of the Earth忆s crust. The 24 solar terms, part of the Chinese traditional calendar, can accurately reflect changes in the Earth忆s climate, and the habitats of microorganisms also change with changes in the solar terms. In order to understand the changes in the structure of the bacterial community and diversity in Urumqi No.10 spring with the 24 solar terms, spring water samples collected during each period of the 24 solar terms were analyzed by T鄄RFLP, and CCA analysis combined with hydro鄄chemical analysis of indicators in the spring was conducted. Diversity analysis shows that the Shannon index (H) of the spring bacterial Proteobacteria Acidithiobacillus 165 Acidiphilium 441 Geobacter 130 Thiothrix 130 Fusobacteria Leptotrichia 165 Others Olavius 165 特殊类群 Particular Community Actinobacteria Microbacterium 165 Mycobacterium 165 Bacteroidetes Capnocytophaga 84 Cytophaga 84 Microscilla 93 Proteobacteria Achromatium 455 Azoarcus 84 Azospirillum 130 / 165 Caulobacter 130 Desulfatiferula 165 Desulfobacter 165 Desulfofrigus 165 Stenotrophomonas 455