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 | - |