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  Taxonomy and evolution of bacteriochlorophyll a-containing members of the OM60/NOR5 clade of marine gammaproteobacteria: description of Luminiphilus syltensis gen. nov., sp nov., reclassification of Haliea rubra as Pseudohaliea rubra gen. nov., comb. nov., and emendation of Chromatocurvus halotolerans

Spring, S., Riedel, T., Spröer, C., Yan, S., Harder, J., & Fuchs, B. M. (2013). Taxonomy and evolution of bacteriochlorophyll a-containing members of the OM60/NOR5 clade of marine gammaproteobacteria: description of Luminiphilus syltensis gen. nov., sp nov., reclassification of Haliea rubra as Pseudohaliea rubra gen. nov., comb. nov., and emendation of Chromatocurvus halotolerans. BMC Microbiology, 13:.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0001-C6C9-D 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0006-F43D-3
資料種別: 学術論文

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Harder13.pdf (出版社版), 2MB
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Harder13.pdf
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 作成者:
Spring, S., 著者
Riedel, T.1, 著者           
Spröer, C., 著者
Yan, S.2, 著者           
Harder, J.3, 著者           
Fuchs, B. M.2, 著者           
所属:
1Marine Geochemistry Group, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481705              
2Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481696              
3Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481695              

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 要旨: Background: Aerobic gammaproteobacteria affiliated to the OM60/NOR5 clade are widespread in saline environments and of ecological importance in several marine ecosystems, especially the euphotic zone of coastal areas. Within this group a close relationship between aerobic anoxygenic photoheterotrophs and non-phototrophic members has been found. Results: Several strains of aerobic red-pigmented bacteria affiliated to the OM60/NOR5 clade were obtained from tidal flat sediment samples at the island of Sylt (North Sea, Germany). Two of the novel isolates, Rap1red and Ivo14(T), were chosen for an analysis in detail. Strain Rap1red shared a 16S rRNA sequence identity of 99% with the type strain of Congregibacter litoralis and was genome-sequenced to reveal the extent of genetic microheterogeneity among closely related strains within this clade. In addition, a draft genome sequence was obtained from the isolate Ivo14(T), which belongs to the environmental important NOR5-1 lineage that contains so far no cultured representative with a comprehensive description. Strain Ivo14T was characterized using a polyphasic approach and compared with other red-pigmented members of the OM60/NOR5 clade, including Congregibacter litoralis DSM 17192(T), Haliea rubra DSM 19751(T) and Chromatocurvus halotolerans DSM 23344(T). All analyzed strains contained bacteriochlorophyll a and spirilloxanthin as photosynthetic pigments. Besides a detailed phenotypic characterization including physiological and chemotaxonomic traits, sequence information based on protein-coding genes and a comparison of draft genome data sets were used to identify possible features characteristic for distinct taxa within this clade. Conclusions: Comparative sequence analyses of the pufLM genes of genome-sequenced representatives of the OM60/NOR5 clade indicated that the photosynthetic apparatus of these species was derived from a common ancestor and not acquired by multiple horizontal gene transfer from phylogenetically distant species. An affiliation of the characterized bacteriochlorophyll a-containing strains to different genera was indicated by significant phenotypic differences and pufLM nucleotide sequence identity values below 82%. The revealed high genotypic and phenotypic diversity of closely related strains within this phylogenetic group reflects a rapid evolution and frequent niche separation in the OM60/NOR5 clade, which is possibly driven by the necessities of an adaptation to oligotrophic marine habitats.

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言語: eng - English
 日付: 2013-05-24
 出版の状態: 出版
 ページ: 21
 出版情報: -
 目次: -
 査読: 査読あり(内部)
 識別子(DOI, ISBNなど): eDoc: 675385
ISI: 000320156100001
 学位: -

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出版物 1

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出版物名: BMC Microbiology
種別: 学術雑誌
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出版社, 出版地: BioMed Central
ページ: - 巻号: 13 通巻号: 118 開始・終了ページ: - 識別子(ISBN, ISSN, DOIなど): ISSN: 1471-2180
CoNE: https://pure.mpg.de/cone/journals/resource/111000136905014