Composition and Function of Bacterial Communities of Bryophytes and Their Underlying Sediments in the Dajiuhu Peatland, Central China

Xing Xiang; Hongmei Wang; Wen Tian; Ruicheng Wang; Linfeng Gong; Ying Xu; Baiying Man

doi:10.1007/s12583-020-1391-x

Volume 34 Issue 1

Feb 2023

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Journal of Earth Science > 2023 > 34(1): 133-144.

Xing Xiang, Hongmei Wang, Wen Tian, Ruicheng Wang, Linfeng Gong, Ying Xu, Baiying Man. Composition and Function of Bacterial Communities of Bryophytes and Their Underlying Sediments in the Dajiuhu Peatland, Central China. Journal of Earth Science, 2023, 34(1): 133-144. doi: 10.1007/s12583-020-1391-x

Citation:

Xing Xiang, Hongmei Wang, Wen Tian, Ruicheng Wang, Linfeng Gong, Ying Xu, Baiying Man. Composition and Function of Bacterial Communities of Bryophytes and Their Underlying Sediments in the Dajiuhu Peatland, Central China. Journal of Earth Science, 2023, 34(1): 133-144. doi: 10.1007/s12583-020-1391-x

Citation:

Xing Xiang, Hongmei Wang, Wen Tian, Ruicheng Wang, Linfeng Gong, Ying Xu, Baiying Man. Composition and Function of Bacterial Communities of Bryophytes and Their Underlying Sediments in the Dajiuhu Peatland, Central China. Journal of Earth Science, 2023, 34(1): 133-144. doi: 10.1007/s12583-020-1391-x

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Composition and Function of Bacterial Communities of Bryophytes and Their Underlying Sediments in the Dajiuhu Peatland, Central China

doi: 10.1007/s12583-020-1391-x

1.
College of life science, Shangrao Normal University, Shangrao 334001, China
2.
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
3.
State Key Laboratory Breeding Base of Marine Genetic Resources, Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA, Key Laboratory of Marine Genetic Resources of Fujian Province, Xiamen 361005, China

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Corresponding author: Hongmei Wang, hmwang@cug.edu.cn
Received Date: 14 Sep 2020
Accepted Date: 10 Dec 2020

Available Online: 02 Feb 2023

Issue Publish Date: 28 Feb 2023

Abstract

Abstract

Symbiotic microbiomes of Sphagnum have been confirmed to play a fundamental role in carbon and nitrogen cycles, however, little is known about microbiomes associated with other bryophytes in subtropical peatland ecosystems. To explore the differences in community structure, metabolic potential and interaction relationship of bacterial microbiomes associated with different bryophytes species, the gametophytes of three bryophyte species (Sphagnum palustre, Aulacomnium androgynum, and Polytrichum commune) and their underlying peat sediments were collected from the subtropical Dajiuhu Peatland and subjected to Illumina high-throughout sequencing of 16S rRNA gene. Results showed that bacterial diversity was lowest in S. palustre, the dominant moss species, among the three moss species investigated in Dajiuhu Peatland. Bacterial communities from bryophytes clearly separated with those from sediments as indicated by both phylogenetic and taxonomical approaches. Linear discriminant analysis effect size (LEfSe) identified 30 and 36 indicator taxa in mosses and peat sediments. Bacteroidetes, Verrucomicrobia and Thermoleophilia significantly enriched in S. palustre, A. androgynum and P. commune, Chloroflexi, Proteobacteria and Acidobacteria subgroup 6 was indicator taxa for corresponding underlying sediments, respectively. Despite of these differences in compositions, bacterial functional structures were similar among all bryophytes, such as abundant aerobic heterotrophs, rare nitrifiers and denitrifiers. This phenomenon was also observed among the underlying sediments. Network analysis indicated that Proteobacteria and Acidobacteria located in the center of network and exerted strong interactions to other taxa. The sub-network of bacterial communities in sediments was more connected and microbial groups were more competitive than those in bryophytes sub-network. Our results offer new insight into the community structure, ecological function and interaction pattern of bacterial microbiomes in the Dajiuhu Peatland across different habitats.
- bryophytes,
- bacteria,
- bacterial microbiome,
- indicator taxa,
- co-occurrence network,
- the Dajiuhu Peatland

Electronic Supplementary Materials: Supplementary materials (Figures S1–S6 and Tables S1–S2) are available in the online version of this article at https://doi.org/10.1007/s12583-020-1391-x.

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