Habitat variations of sediment microbial community structure and functions and the influential environmental factors in a Ramsar protected wetland in South China

Research output: Contribution to journalArticlepeer-review

Abstract

Ecological functions of coastal wetlands are closely linked to microbiome that is affected by anthropogenic pollution, but related systematic research is rare. This study explored microbial community and physicochemical characteristics of sediments in three habitats, mudflat, mangrove and inter-tidal shrimp ponds (gei wai), in a Ramsar using 16S amplicon sequencing. Proteobacteria was the most abundant and Vibrio was detected in all habitats. Microbial diversity in mangrove is higher than mudflat, with gei wai in between. Microbial functions predicted by PICRUSt revealed prevalence of carbohydrate and amino acid metabolism, with enrichment of nitrogen metabolism in mangrove habitat. Gene annotation identified approximately 800 intrinsic antibiotic resistance genes (iARGs) and dominant mechanism was antibiotic inactivation. Variation partitioning analysis indicated sediment characteristics together with antibiotics and heavy metals shaped microbiomes and iARGs composition in sediments. This study offers insights into variations of sediment microbial diversity, function and iARGs among different habitats in protected wetlands.

Original languageEnglish
Article number117166
JournalMarine Pollution Bulletin
Volume209
DOIs
Publication statusPublished - Dec 2024

Keywords

  • Anthropogenic pollution
  • Coastal wetland
  • Microbial function
  • Proteobacteria
  • Sediment microbiome

Fingerprint

Dive into the research topics of 'Habitat variations of sediment microbial community structure and functions and the influential environmental factors in a Ramsar protected wetland in South China'. Together they form a unique fingerprint.

Cite this