title: Greater temporal changes of sediment microbial community than its waterborne counterpart in Tengchong hot springs, Yunnan Province, China.
abstract: Temporal variation in geochemistry can cause changes in microbial community structure and diversity. Here we studied temporal changes of microbial communities in Tengchong hot springs of Yunnan Province, China in response to geochemical variations by using microbial and geochemical data collected in January, June and August of 2011. Greater temporal variations were observed in individual taxa than at the whole community structure level. Water and sediment communities exhibited different temporal variation patterns. Water communities were largely stable across three sampling times and dominated by similar microbial lineages: Hydrogenobaculum in moderate-temperature acidic springs, Sulfolobus in high-temperature acidic springs, and Hydrogenobacter in high-temperature circumneutral to alkaline springs. Sediment communities were more diverse and responsive to changing physicochemical conditions. Most of the sediment communities in January and June were similar to those in waters. However, the August sediment community was more diverse and contained more anaerobic heterotrophs than the January and June: Desulfurella and Acidicaldus in moderate-temperature acidic springs, Ignisphaera and Desulfurococcus in high-temperature acidic springs, the candidate division OP1 and Fervidobacterium in alkaline springs, and Thermus and GAL35 in neutral springs. Temporal variations in physicochemical parameters including temperature, pH, and dissolved organic carbon may have triggered the observed microbial community shifts.
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology &Department of Earth Sciences, China University of Geosciences, Beijing 100083, China.
authors.forename: Shang
authors.initials: S
authors.lastname: Wang
authors.affiliation: 1] State Key Laboratory of Biogeology and Environmental Geology &Department of Earth Sciences, China University of Geosciences, Beijing 100083, China [2] Department of Geology and Environmental Earth Science, Miami University, Oxford, OH, 45056, USA.
authors.forename: Hailiang
authors.initials: H
authors.lastname: Dong
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology &Department of Earth Sciences, China University of Geosciences, Beijing 100083, China.
authors.forename: Weiguo
authors.initials: W
authors.lastname: Hou
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China.
authors.forename: Hongchen
authors.initials: H
authors.lastname: Jiang
authors.affiliation: Department of Geology and Environmental Earth Science, Miami University, Oxford, OH, 45056, USA.
authors.forename: Qiuyuan
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Department of Geology and Environmental Earth Science, Miami University, Oxford, OH, 45056, USA.
authors.forename: Brandon R
authors.initials: BR
authors.lastname: Briggs
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology &Department of Earth Sciences, China University of Geosciences, Beijing 100083, China.
authors.forename: Liuqin
authors.initials: L
authors.lastname: Huang
mesh_terms: D001105:Archaea / Q000145:classification / Q000254:growth & development*; D001419:Bacteria / Q000145:classification / Q000254:growth & development*; D002681:China; D045482:Hot Springs / Q000382:microbiology*; D012621:Seasons; D014871:Water Microbiology