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Authors Zhang, GL; Bai, JH; Tebbe, CC; Zhao, QQ; Jia, J; Wang, W; Wang, X; Yu, L
Author Full Name Zhang, Guangliang; Bai, Junhong; Tebbe, Christoph C.; Zhao, Qingqing; Jia, Jia; Wang, Wei; Wang, Xin; Yu, Lu
Title Salinity controls soil microbial community structure and function in coastal estuarine wetlands
Source ENVIRONMENTAL MICROBIOLOGY
Language English
Document Type Article
Keywords Plus YELLOW-RIVER DELTA; ORGANIC-CARBON; SALTWATER INTRUSION; ASSEMBLY PROCESSES; DIVERSITY; PH; DECOMPOSITION; MECHANISMS; SEDIMENT; GRADIENT
Abstract Soil salinity acts as a critical environmental filter on microbial communities, but the consequences for microbial diversity and biogeochemical processes are poorly understood. Here, we characterized soil bacterial communities and microbial functional genes in a coastal estuarine wetland ecosystem across a gradient (similar to 5 km) ranging from oligohaline to hypersaline habitats by applying the PCR-amplified 16S rRNA (rRNA) genes sequencing and microarray-based GeoChip 5.0 respectively. Results showed that saline soils in marine intertidal and supratidal zone exhibited higher bacterial richness and Faith's phylogenetic diversity than that in the freshwater-affected habitats. The relative abundance of taxa assigned to Gammaproteobacteria, Bacteroidetes and Firmicutes was higher with increasing salinity, while those affiliated with Acidobacteria, Chloroflexi and Cyanobacteria were more prevalent in wetland soils with low salinity. The phylogenetic inferences demonstrated the deterministic role of salinity filtering on the bacterial community assembly processes. The abundance of most functional genes involved in carbon degradation and nitrogen cycling correlated negatively with salinity, except for the hzo gene, suggesting a critical role of the anammox process in tidal affected zones. Overall, the salinity filtering effect shapes the soil bacterial community composition, and soil salinity act as a critical inhibitor in the soil biogeochemical processes in estuary ecosystems.
Author Address [Zhang, Guangliang; Bai, Junhong; Jia, Jia; Wang, Wei; Wang, Xin; Yu, Lu] Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China; [Tebbe, Christoph C.] Thunen Inst Biodivers, Bundesallee 65, D-38116 Braunschweig, Germany; [Zhao, Qingqing] Qilu Univ Technol, Shandong Acad Sci, Jinan 250103, Peoples R China; [Zhao, Qingqing] Shandong Acad Sci, Ecol Inst, Jinan 250103, Peoples R China
Reprint Address Bai, JH (corresponding author), Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China.
E-mail Address junhongbai@163.com
ResearcherID Number Tebbe, Christoph/Q-8545-2017
ORCID Number Tebbe, Christoph/0000-0003-4861-0214; Bai, Junhong/0000-0003-2613-2143
Funding Agency and Grant Number National Key R&D Program of China [2017YFC0505906]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [310430001]; Interdisciplinary Research Funds of Beijing Normal University, China; China Scholarship Council (CSC)China Scholarship Council
Funding Text This study was financially supported by the National Key R&D Program of China (Grant No. 2017YFC0505906), the Fundamental Research Funds for the Central Universities (No. 310430001) and the Interdisciplinary Research Funds of Beijing Normal University, China. We gratefully acknowledge the China Scholarship Council (CSC) for the financial support for Guangliang Zhang to visit and study at Thunen Institute, Germany. We also want to thank Dr. Marton Szoboszlay and Sainur Samad, both from the Thunen Institute of Biodiversity, for their discussion and support in bioinformatics and statistical analyses.
Times Cited 2
Total Times Cited Count (WoS, BCI, and CSCD) 2
Publisher WILEY
Publisher City HOBOKEN
Publisher Address 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
ISSN 1462-2912
29-Character Source Abbreviation ENVIRON MICROBIOL
ISO Source Abbreviation Environ. Microbiol.
Publication Date FEB
Year Published 2021
Volume 23
Issue 2
Beginning Page 1020
Ending Page 1037
Digital Object Identifier (DOI) 10.1111/1462-2920.15281
Page Count 18
Web of Science Category Microbiology
Subject Category Microbiology
Document Delivery Number QL5NP
Unique Article Identifier WOS:000581916700001
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