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Title: Integrated metagenomics and network analysis of soil microbial community of the forest timberline

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep07994· OSTI ID:1624757
 [1];  [2];  [3];  [4];  [2];  [5];  [6];  [6];  [6];  [2];  [7];  [5]
  1. Chinese Academy of Forestry, Beijing (China). Key Lab. of Forest Ecology and Environment of State Forestry Administration, Inst. of Forestry Ecology, Environment and Protection; Tsinghua Univ., Beijing (China). School of Environment, State key Joint Laboratory of Environmental Simulation and Pollution Control
  2. Chinese Academy of Forestry, Beijing (China). Key Lab. of Forest Ecology and Environment of State Forestry Administration, Inst. of Forestry Ecology, Environment and Protection
  3. Chinese Academy of Sciences (CAS), Beijing (China). Research Center for Eco-Environmental Sciences, CAS Key Laboratory of Environmental Biotechnology; Univ. of Oklahoma, Norman, OK (United States). Inst. for Environmental Genomics and Dept. of Botany and Microbiology
  4. Chinese Academy of Forestry, Beijing (China). Key Lab. of Forest Ecology and Environment of State Forestry Administration, Inst. of Forestry Ecology, Environment and Protection; Central South Univ., Changsha (China). School of Mineral Processing and Bioengineering
  5. Tsinghua Univ., Beijing (China). School of Environment, State key Joint Laboratory of Environmental Simulation and Pollution Control
  6. Univ. of Oklahoma, Norman, OK (United States). Inst. for Environmental Genomics and Dept. of Botany and Microbiology
  7. Tsinghua Univ., Beijing (China). School of Environment. State key Joint Laboratory of Environmental Simulation and Pollution Control; Univ. of Oklahoma, Norman, OK (United States). Inst. for Environmental Genomics and Dept. of Botany and Microbiology; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

The forest timberline responds quickly and markedly to climate changes, rendering it a ready indicator. Climate warming has caused an upshift of the timberline worldwide. However, the impact on belowground ecosystem and biogeochemical cycles remain elusive. To understand soil microbial ecology of the timberline, we analyzed microbial communities via 16s rRNA Illumina sequencing, a microarray-based tool named GeoChip 4.0 and a random matrix theory-based association network approach. We selected 24 sampling sites at two vegetation belts forming the timberline of Shennongjia Mountain in Hubei Province of China, a region with extraordinarily rich biodiversity. We found that temperature, among all of measured environmental parameters, showed the most significant and extensive linkages with microbial biomass, microbial diversity and composition at both taxonomic and functional gene levels and microbial association network. Therefore, temperature was the best predictor for microbial community variations in the timberline. Furthermore, abundances of nitrogen cycle and phosphorus cycle genes were concomitant with NH4+-N, NO3-N and total phosphorus, offering tangible clues to the underlying mechanisms of soil biogeochemical cycles. As the first glimpse at both taxonomic and functional compositions of soil microbial community of the timberline, our findings have major implications for predicting consequences of future timberline upshift.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Chinese Academy of Sciences (CAS); National Key Basic Research Program of China; National Natural Science Foundation of China (NSFC); National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231; LFSE2014-02; XDB15010302
OSTI ID:
1624757
Journal Information:
Scientific Reports, Vol. 5, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 76 works
Citation information provided by
Web of Science

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Dramatic Increases of Soil Microbial Functional Gene Diversity at the Treeline Ecotone of Changbai Mountain journal July 2016
Soil organic matter quantity and quality shape microbial community compositions of subtropical broadleaved forests journal October 2015
Abundance determines the functional role of bacterial phylotypes in complex communities journal June 2018
Microbial community analysis and biodeterioration of waterlogged archaeological wood from the Nanhai No. 1 shipwreck during storage journal May 2018
Contrasting elevational diversity patterns for soil bacteria between two ecosystems divided by the treeline journal September 2016
A Tripartite Microbial-Environment Network Indicates How Crucial Microbes Influence the Microbial Community Ecology journal August 2019
Variations of Soil Microbial Community Structures Beneath Broadleaved Forest Trees in Temperate and Subtropical Climate Zones journal February 2017
Cracks Reinforce the Interactions among Soil Bacterial Communities in the Coal Mining Area of Loess Plateau, China journal December 2019
Seasonal soil microbial responses are limited to changes in functionality at two Alpine forest sites differing in altitude and vegetation journal May 2017
The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture journal June 2017
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Microbial responses to southward and northward Cambisol soil transplant journal October 2015
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Continuous-cropping tobacco caused variance of chemical properties and structure of bacterial network in soils journal October 2018
Actinobacteria Structure in Autogenic, Hydrogenic and Lithogenic Cultivated and Non-Cultivated Soils: A Culture-Independent Approach journal September 2019
Do Organic Substrates Drive Microbial Community Interactions in Arctic Snow? journal October 2019
Soil bacterial endemism and potential functional redundancy in natural broadleaf forest along a latitudinal gradient journal June 2016
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