Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, China
Arsenic (As) is an ubiquitous constituent in geothermal water. Arsenite (AsIII) is oxidized via microbial processes as the waters equilibrate with oxygen in the geothermal effluent. The distribution of arsenite oxdizing bacteria and its correlation with environment factors were studied in Tengchong...
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2019-01-01
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doaj-968a3c2ac26e4c5e9872c2bbb9b4fbf92021-02-02T08:15:30ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01980200210.1051/e3sconf/20199802002e3sconf_wri-162018_02002Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, ChinaLi Ping0Jiang Dawei1Jiang ZhouState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesArsenic (As) is an ubiquitous constituent in geothermal water. Arsenite (AsIII) is oxidized via microbial processes as the waters equilibrate with oxygen in the geothermal effluent. The distribution of arsenite oxdizing bacteria and its correlation with environment factors were studied in Tengchong geothermal areas of Yunnan, China. A total of 230 aioA clone sequences were obtained and these sequences were affiliated with four phyla: Betaproteobacteria, Alphaproteobacteria, Deinococcus-Thermus and Aquificae. Temperature was negatively correlated with aioA diversity and was the only environment factor that had correlation with diversity index. Betaproteobacteria was mainly distributed in low temperature (T = 28 to 43 °C) and circumneutral or light alkaline (pH = 7 to 9) springs; Alphaproteobacteria was mainly predominant in low pH (pH = 3.3 to 3.6) springs; Deinococcus-Thermus and Aquificae mainly inhabited in high temperature (T=55 to 78 °C) springs with a wide range of pH. Usually, Deinococcus-Thermus was dominant when springs had a pH within 4.0 to 8.0. Aquificae was dominated in springs with pH > 8.0 or pH < 4.0.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_02002.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Li Ping Jiang Dawei Jiang Zhou |
spellingShingle |
Li Ping Jiang Dawei Jiang Zhou Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, China E3S Web of Conferences |
author_facet |
Li Ping Jiang Dawei Jiang Zhou |
author_sort |
Li Ping |
title |
Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, China |
title_short |
Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, China |
title_full |
Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, China |
title_fullStr |
Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, China |
title_full_unstemmed |
Distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of Tengchong, Yunnan, China |
title_sort |
distribution of arsenite-oxidizing bacteria and its correlation with environmental factors in geothermal areas of tengchong, yunnan, china |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2019-01-01 |
description |
Arsenic (As) is an ubiquitous constituent in geothermal water. Arsenite (AsIII) is oxidized via microbial processes as the waters equilibrate with oxygen in the geothermal effluent. The distribution of arsenite oxdizing bacteria and its correlation with environment factors were studied in Tengchong geothermal areas of Yunnan, China. A total of 230 aioA clone sequences were obtained and these sequences were affiliated with four phyla: Betaproteobacteria, Alphaproteobacteria, Deinococcus-Thermus and Aquificae. Temperature was negatively correlated with aioA diversity and was the only environment factor that had correlation with diversity index. Betaproteobacteria was mainly distributed in low temperature (T = 28 to 43 °C) and circumneutral or light alkaline (pH = 7 to 9) springs; Alphaproteobacteria was mainly predominant in low pH (pH = 3.3 to 3.6) springs; Deinococcus-Thermus and Aquificae mainly inhabited in high temperature (T=55 to 78 °C) springs with a wide range of pH. Usually, Deinococcus-Thermus was dominant when springs had a pH within 4.0 to 8.0. Aquificae was dominated in springs with pH > 8.0 or pH < 4.0. |
url |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_02002.pdf |
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