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Seagrass vegetation affect the vertical organization of microbial communities in sediment
Sun, Yanyu1,2,3; Song, Zenglei1,2,3; Zhang, Haikun1,2; Liu, Pengyuan1,2,3; Hu, Xiaoke1,2
KeywordSeagrass bed Microbial community Sediment core Vertical organization Zostera marina Zostera japonica
Corresponding AuthorHu, Xiaoke(xkhu@yic.ac.cn)
AbstractSeagrasses represent high primary productivity and provide important ecosystem services to the marine environment. Seagrass-associated microbial communities are playing essential ecological functional roles in biogeochemical cycles. However, little is known about the effect of seagrass vegetation on microbial communities in sediment. In the present study, the sediment cores of seagrass bed (dominated by Zostera japonica and Zostera marine) and degradation area in Swan Lake (China) were sampled; then, biogeochemical parameters were analyzed, and microbial community composition was investigated by using high-throughput sequencing of the 16S rRNA gene. The results showed that the presence of seagrass could lead to a decrease in the richness and diversity of the microbial community. In the vertical direction, a pronounced shift from Proteobacteria-dominated upper layers to Chloroflexi and Crenarchaeota-dominated deep layers in all sediment cores were observed. Besides, Bathyarchaeia is more abundant at degradation area, while Vibrionaceae, Sulfurovum and Lokiarchaeial overrepresent at the seagrass bed area. Vibrionaceae was abundant in the rhizosphere of Z. marina and Z. japonica, and the proportions reached 84.45% and 63.89%, respectively. This enrichment of Vibrio spp. may be caused by the macrobenthic species near the seagrass rhizosphere, and these Vibrio spp. reduced the diversity and stability of microbial community, which may lead to the degradation of seagrass. This study would provide clues for the distribution patterns and niche preferences of seagrass microbiome. The conservation strategy of seagrass would be further elucidated from the perspective of the microbiome.
Funding OrganizationKey Research Project of Frontier Science of Chinese Academy of Sciences ; External Cooperation Program of Chinese Academy of Sciences
Indexed BySCI
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology ; Toxicology
WOS IDWOS:000591267200001
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorHu, Xiaoke
Affiliation1.Chinese Acad Sci, Yantai Inst Costal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Sun, Yanyu,Song, Zenglei,Zhang, Haikun,et al. Seagrass vegetation affect the vertical organization of microbial communities in sediment[J]. MARINE ENVIRONMENTAL RESEARCH,2020,162:10.
APA Sun, Yanyu,Song, Zenglei,Zhang, Haikun,Liu, Pengyuan,&Hu, Xiaoke.(2020).Seagrass vegetation affect the vertical organization of microbial communities in sediment.MARINE ENVIRONMENTAL RESEARCH,162,10.
MLA Sun, Yanyu,et al."Seagrass vegetation affect the vertical organization of microbial communities in sediment".MARINE ENVIRONMENTAL RESEARCH 162(2020):10.
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