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Front Microbiol. 2018 Jul 31;9:1693. doi: 10.3389/fmicb.2018.01693. eCollection 2018.

Contrasting Soil Bacterial Community, Diversity, and Function in Two Forests in China.

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Center for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, China.
Medical College, Baoji Vocational Technology College, Baoji, China.
Départment des Sciences Biologiques, Institut des Sciences de l'Environnement, Université du Québec à Montréal, Montreal, QC, Canada.
Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China.
Baotianman Natural Reserve Administration, Neixiang, China.
Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China.
State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal University, Changchun, China.


Bacteria are the highest abundant microorganisms in the soil. To investigate bacteria community structures, diversity, and functions, contrasting them in four different seasons all the year round with/within two different forest type soils of China. We analyzed soil bacterial community based on 16S rRNA gene sequencing via Illumina HiSeq platform at a temperate deciduous broad-leaved forest (Baotianman, BTM) and a tropical rainforest (Jianfengling, JFL). We obtained 51,137 operational taxonomic units (OTUs) and classified them into 44 phyla and 556 known genera, 18.2% of which had a relative abundance >1%. The composition in each phylum was similar between the two forest sites. Proteobacteria and Acidobacteria were the most abundant phyla in the soil samples between the two forest sites. The Shannon index did not significantly differ among the four seasons at BTM or JFL and was higher at BTM than JFL in each season. The bacteria community at both BTM and JFL showed two significant (P < 0.05) predicted functions related to carbon cycle (anoxygenic photoautotrophy sulfur oxidizing and anoxygenic photoautotrophy) and three significant (P < 0.05) predicted functions related to nitrogen cycle (nitrous denitrificaton, nitrite denitrification, and nitrous oxide denitrification). We provide the basis on how changes in bacterial community composition and diversity leading to differences in carbon and nitrogen cycles at the two forests.


bacterial community structure; bacterial diversity; bacterial function; environmental factors; temperate deciduous broad-leaved forest; tropical rainforest

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