Variations of Sediment Archaea Communities in Different Distribution Areas of Bruguiera gymnoihiza Mangrove in Dongzhaigang, China
Wei Li 1, 2, 3  
,   Wei Guan 4,   Huai Chen 2, 3  
,   Baowen Liao 4,   Ji Hu 2, 3,   Junpeng Rui 2,   Changhui Peng 5, 6,   Dan Zhu 2, 3,   Yixin He 2, 3,   Jianqing Tian 7  
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School of Ecology and Environmental Sciences and Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, China
Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
Zoige Peatland and Global Change Research Station, Chinese Academy of Sciences, Hongyuan, China
Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
Laboratory for Ecological Forecasting and Global Change, Northwest A&F University, Yangling, China
Institut des Sciences de l’Environnement, Université du Québec à Montréal, Montréal, Canada
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
Huai Chen   

Chengdu Institute of Biology, Chinese Academy of Sciences, Renminnan Road,9, 6 Chengdu, China
Submission date: 2018-01-18
Final revision date: 2018-04-13
Acceptance date: 2018-04-17
Online publication date: 2019-05-07
Publication date: 2019-05-28
Pol. J. Environ. Stud. 2019;28(5):3343–3352
Archaea communities widely exist in mangrove forest sediments, but their spatial variations among different distribution areas with salinity gradient in mangrove forest sediments is not well understood. This study used 16S rRNA Miseq sequence to investigate the sediment archaeal community structure and diversity of Bruguiera gymnoihiza mangrove forest in China along three different distribution areas. The results showed rich methanogen and ammonia-oxidizing archaea resources in the study site, with Methanobacterium, Methanothrix, Methanomassiliicoccus, Nitrosopumilus and Nitrososphaera (>1%) as the dominant genera. Mantel test and Redundancy analysis (RDA) results revealed that pH was the determinant for archaeal community structure in our study. The RDA result showed that the available K also contributed to archaeal community structure. There was a significant and positive relationship between pH and available P; in addition, the two values were significantly and negatively related to the observed OTU number. These results suggested that pH is the main determinant of the archaeal community structure and diversity in distribution areas of Bruguiera gymnoihiza in Dongzhaigang.