Impacts of the invasive Spartina anglica on C-S-Hg cycles and Hg(II) methylating microbial communities revealed by hgcA gene analysis in intertidal sediment of the Han River estuary, Yellow Sea SCIE SCOPUS

DC Field Value Language Park, Jisu - Cho, Hyeyoun - Han, Seunghee - An, Sung-Uk - Choi, Ayeon - Lee, Hyeonji - Hyun, Jung-Ho - 2023-01-09T01:30:00Z - 2023-01-09T01:30:00Z - 2023-01-05 - 2023-02 -
dc.identifier.issn 0025-326X -
dc.identifier.uri -
dc.description.abstract We investigated the impact of invasive vegetation on mercury cycles, and identified microorganisms directly related to Hg(II) methylation using hgcA gene in vegetated mud flats (VMF) inhabited by native Suaeda japonica (SJ) and invasive Spartina anglica (SA), and unvegetated mud flats (UMF) in Ganghwa intertidal sediments. Sulfate reduction rate (SRR) and rate constants of Hg(II) methylation (Km) and methyl-Hg demethylation (Kd) were consistently greater in VMF than in UMF, specifically 1.5, 2 and 11.7 times higher, respectively, for SA. Both Km and Kd were significantly correlated with SRR and the abundance of sulfate-reducing bacteria. These results indicate that the rhizosphere of invasive SA provides a hotspot for Hg dynamics coupled with sulfate reduction. HgcA gene analysis revealed that Hg(II)-methylators were dominated by Deltaproteobacteria, Chloroflexi and Euryarchaeota, comprising 37.9%, 35.8%, and 6.5% of total hgcA gene sequences, respectively, which implies that coastal sediments harbor diverse Hg(II)-methylating microorganisms that previously underrepresented. -
dc.description.uri 1 -
dc.language English -
dc.publisher Pergamon Press Ltd. -
dc.title Impacts of the invasive Spartina anglica on C-S-Hg cycles and Hg(II) methylating microbial communities revealed by hgcA gene analysis in intertidal sediment of the Han River estuary, Yellow Sea -
dc.type Article -
dc.citation.title Marine Pollution Bulletin -
dc.citation.volume 187 -
dc.contributor.alternativeName 안성욱 -
dc.contributor.alternativeName 최아연 -
dc.identifier.bibliographicCitation Marine Pollution Bulletin, v.187 -
dc.identifier.doi 10.1016/j.marpolbul.2022.114498 -
dc.identifier.scopusid 2-s2.0-85145834107 -
dc.identifier.wosid 000915926700001 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus SULFATE-REDUCING BACTERIA -
dc.subject.keywordPlus COASTAL MARINE-SEDIMENTS -
dc.subject.keywordPlus SALT-MARSH SEDIMENTS -
dc.subject.keywordPlus MERCURY METHYLATION -
dc.subject.keywordPlus METHYLMERCURY PRODUCTION -
dc.subject.keywordPlus PRINCIPAL METHYLATORS -
dc.subject.keywordPlus AQUATIC ENVIRONMENT -
dc.subject.keywordPlus SURFACE SEDIMENTS -
dc.subject.keywordPlus CHINA SOURCES -
dc.subject.keywordAuthor Hg(II) methylation -
dc.subject.keywordAuthor Hg(II)-methylating microbial communities -
dc.subject.keywordAuthor hgcA gene -
dc.subject.keywordAuthor MeHg demethylation -
dc.subject.keywordAuthor Sulfate reduction -
dc.subject.keywordAuthor Vegetated intertidal sediment -
dc.relation.journalWebOfScienceCategory Environmental Sciences -
dc.relation.journalWebOfScienceCategory Marine & Freshwater Biology -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Environmental Sciences & Ecology -
dc.relation.journalResearchArea Marine & Freshwater Biology -
Appears in Collections:
Marine Environmental & Climate Research Division > Marine Environmental Research Center > 1. Journal Articles
Marine Resources Research Division > Marine Biotechnology Research Center > 1. Journal Articles
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