식생대와 비식생대 퍼갯벌의 미생물 호흡경로와 관련된 delta-proteobacteria 군집구조

DC Field Value Language
dc.contributor.author 현정호 -
dc.contributor.author 목진숙 -
dc.contributor.author 조혜연 -
dc.contributor.author 김성한 -
dc.contributor.author JE Kostka -
dc.date.accessioned 2020-07-17T06:30:14Z -
dc.date.available 2020-07-17T06:30:14Z -
dc.date.created 2020-02-11 -
dc.date.issued 2006-08-21 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/30922 -
dc.description.abstract This study was to relate pathways of microbial respiration to molecular hylogenetic evidence in the unvegetated (UMF) and vegetated mudflat (VMF) covered by Suaeda japonica in Korea. Concentrations of Fe2+ at VMF were 4X higher in July (3.6 mmol m-2) and 15X higher in Octover (35.2 mmol m-2) than at UMF (0.9 mmol m-2 in July and 2.3 mmol m-2 in October). C mineralization in July was 3.2X higher at VMF (142.1 mmolC m-2d-1) than at UMF (45.4 mmolC m-2d-1), whereas C mineralization in October was only 1.6X higher at VMF (30.4 mmolC m-2d-1) than at the UMF (18.4 mmolC m-2d-1). The rate of sulfate reduction in July was 2.9X higher at VMF (53.0 mmolS m-2d-1) than at UMF (18.4 mmolS m-2d-1), but little difference was observed between VMF (9.3 mmolS m-2d-1) and UMF (10.9 mmolS m-2d-1) in October. Highest rates of C respiration and sulfate reduction at VMF in July indicated that actively growing plant roots and rhizomes excrete DOM, fueling bacterial metabolism. Molecular phylogenetic analysis of delta-Proteobacteria clones based on 16S rDNA sequence revealed that Desulfuromonas/Pelobacter using Fe(III) and So as an electron acceptor were dominating at the rhizosphere of VMF, whereas most sulfate reducing bacterial clones (Desulfobacterium & Desulfobulbus) were observed at both UMF and VMF sites. Combinations of biogeochemical measurements and molecular phylogenetic evidence indicated that, although sulfate reduction was a prevailing C mineralization pathway in the organic rich intertidal mudflat, microbial Fe(III) reduction was a significant C mineralization pathway at VMF site. -
dc.description.uri 1 -
dc.language English -
dc.publisher ISME -
dc.relation.isPartOf 11th ISME -
dc.title 식생대와 비식생대 퍼갯벌의 미생물 호흡경로와 관련된 delta-proteobacteria 군집구조 -
dc.title.alternative COMMUNITY STRUCTURE OF DELTA-PROTEOBACTERIA ASSOCIATED WITH PATHWAYS OF MICROBIAL RESPIRATION IN VEGETATED AND UNVEGETATED INTERTIDAL MUDFLAT -
dc.type Conference -
dc.citation.endPage 74 -
dc.citation.startPage 74 -
dc.citation.title 11th ISME -
dc.contributor.alternativeName 조혜연 -
dc.contributor.alternativeName 김성한 -
dc.identifier.bibliographicCitation 11th ISME, pp.74 -
dc.description.journalClass 1 -
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