ウルバンチク ヘンリク (ウルバンチク ヘンリク)

URBANCZYK Henryk

写真a

所属

農学部 海洋生物環境学科

職名

准教授

外部リンク

学位 【 表示 / 非表示

  • 博士(理学) ( 2005年3月   広島大学 )

研究分野 【 表示 / 非表示

  • ライフサイエンス / 細菌学  / 微生物多様性, 微生物進化, 海洋微生物学, ビブリオ科

 

論文 【 表示 / 非表示

  • Tracing genomic divergence of Vibrio bacteria in the Harveyi clade 査読あり

    Ke H., Liu D., Ogura Y., Hayashi T., Urbanczyk H., Tsai I.

    Journal of Bacteriology   200 ( 15 )   2018年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Bacteriology  

    © 2018 American Society for Microbiology. The mechanism of bacterial speciation remains a topic of tremendous interest. To understand the ecological and evolutionary mechanisms of speciation in Vibrio bacteria, we analyzed the genomic dissimilarities between three closely related species in the so-called Harveyi clade of the genus Vibrio, V. campbellii, V. jasicida, and V. hyugaensis. The analysis focused on strains isolated from diverse geographic locations over a long period of time. The results of phylogenetic analyses and calculations of average nucleotide identity (ANI) supported the classification of V. jasicida and V. hyugaensis into two species. These analyses also identified two well-supported clades in V. campbellii; however, strains from both clades were classified as members of the same species. Comparative analyses of the complete genome sequences of representative strains from the three species identified higher syntenic coverage between genomes of V. jasicida and V. hyugaensis than that between the genomes from the two V. campbellii clades. The results from comparative analyses of gene content between bacteria from the three species did not support the hypothesis that gene gain and/or loss contributed to their speciation. We also did not find support for the hypothesis that ecological diversification toward associations with marine animals contributed to the speciation of V. jasicida and V. hyugaensis. Overall, based on the results obtained in this study, we propose that speciation in Harveyi clade species is a result of stochastic diversification of local populations, which was influenced by multiple evolutionary processes, followed by extinction events.

    DOI: 10.1128/JB.00001-18

    Scopus

  • Genomic evidence that Vibrio inhibens is a heterotypic synonym of Vibrio jasicida. 査読あり

    Yoshiko Urbanczyk, Yoshitoshi Ogura, Tetsuya Hayashi, Henryk Urbanczyk

    International Journal of Systematic and Evolutionary Microbiology   2016年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1099/ijsem.0.001173

  • Corrigendum to "Description of a novel marine bacterium, Vibrio hyugaensis sp. nov., based on genomic and phenotypic characterization" [Syst. Appl. Microbiol. 38 (July (5)) (2015) 300-304] DOI: 10.1016/j.syapm.2015.04.001

    Urbanczyk Y., Ogura Y., Hayashi T., Urbanczyk H.

    Systematic and Applied Microbiology   38 ( 7 )   2015年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Systematic and Applied Microbiology  

    DOI: 10.1016/j.syapm.2015.09.001

    Scopus

  • Description of a novel marine bacterium, Vibrio hyugaensis sp. nov., based on genomic and phenotypic characterization 査読あり

    Yoshiko Urbanczyk, Yoshitoshi Ogura, Tetsuya Hayashi, Henryk Urbanczyk

    Systematic and Applied Microbiology   2015年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: doi:10.1016/j.syapm.2015.04.001

  • Contrasting inter-and intraspecies recombination patterns in the "harveyi clade" vibrio collected over large spatial and temporal scales 査読あり

    Urbanczyk H., Ogura Y., Hayashi T.

    Genome Biology and Evolution   7 ( 1 )   71 - 80   2014年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Genome Biology and Evolution  

    © 2014 The Author(s). Recombinationplaysanimportant role in thedivergenceofbacteria, but thefrequencyof interspecies andintraspecies recombination events remains poorly understood. We investigated recombination events that occurred within core genomes of 35 Vibrio strains (family Vibrionaceae, Gammaproteobacteria), from six closely related species in the so-called "Harveyi clade." The strains were selected from a collection of strains isolated in the last 90 years, fromvarious environments worldwide.Wefound a close relationship between the number of interspecies recombination events within core genomes of the 35 strains and the overall genomic identity, as inferred fromcalculations of the average nucleotide identity. The relationship between theoverall nucleotide identity andthe number of detected interspecies recombination events was comparable when analyzing strains isolated over 80 years apart, from different hemispheres, or from different ecologies, as well as in strains isolated from the same geographic location within a short time frame. We further applied the same method of detecting recombination events to analyze 11 strains of Vibrio campbellii, and identified disproportionally high number of intraspecies recombination events within the core genomes of some, but not all, strains. The high number of recombination events was detected between V. campbellii strains that have significant temporal (over 18 years) and geographical (over 10,000 km)differences in theirorigins of isolation. Resultsof this study reveal aremarkablestabilityofHarveyi clade species, and give clues about the origins and persistence of species in the clade.

    DOI: 10.1093/gbe/evu269

    Scopus

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書籍等出版物 【 表示 / 非表示

  • Bergey’s Manual of Systematics of Archaea and Bacteria, 1st ed.; Aliivibrio

    Henryk Urbanczyk( 担当: 共著)

    John Wiley & Sons, Inc.: Hoboken, NJ, USA, in association with Bergey’s Manual Trust.  2020年 

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    記述言語:英語 著書種別:学術書

  • Luminous bacteria

    Dunlap P., Urbanczyk H.( 担当: 共著)

    The Prokaryotes: Prokaryotic Physiology and Biochemistry  2013年11月 

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    記述言語:英語 著書種別:学術書

    © 2013 Springer-Verlag Berlin Heidelberg. All rights are reserved. Luminous bacteria are those bacteria that carry the lux genes, genes that code for proteins involved in light production. Many luminous bacteria emit light at high, easily visible levels in laboratory culture and in nature, and the phenomenon of light emission has generated interest in these bacteria for over 125 years. Luminous bacteria are especially common in ocean environments where they colonize a variety of habitats, but some species are found in brackish, freshwater, and terrestrial environments. This chapter, which begins with an historical perspective, summarizes current understanding of the biochemistry and genetics of bacterial light emission, the taxonomy and phylogenetics of light-emitting bacteria, the evolutionary origins and hypothesized physiological and ecological functions of bacterial luminescence, the distributions and activities of these bacteria in nature, their symbiotic interactions with animals and especially with marine fishes, and the quorum sensing regulatory circuitry controlling light production at the operon level. This chapter concludes with information on the isolation, cultivation, storage, and identification of luminous bacteria.

    Scopus

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  • Phylogeny, genomics, and symbiosis of Photobacterium 招待あり 査読あり

    Urbanczyk H., Ast J., Dunlap P.

    FEMS Microbiology Reviews   35 ( 2 )   324 - 342   2011年3月

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    記述言語:英語   掲載種別:記事・総説・解説・論説等(学術雑誌)   出版者・発行元:FEMS Microbiology Reviews  

    Photobacterium comprises several species in Vibrionaceae, a large family of Gram-negative, facultatively aerobic, bacteria that commonly associate with marine animals. Members of the genus are widely distributed in the marine environment and occur in seawater, surfaces, and intestines of marine animals, marine sediments and saline lake water, and light organs of fish. Seven Photobacterium species are luminous via the activity of the lux genes, luxCDABEG. Much recent progress has been made on the phylogeny, genomics, and symbiosis of Photobacterium. Phylogenetic analysis demonstrates a robust separation between Photobacterium and its close relatives, Aliivibrio and Vibrio, and reveals the presence of two well-supported clades. Clade 1 contains luminous and symbiotic species and one species with no luminous members, and Clade 2 contains mostly nonluminous species. The genomes of Photobacterium are similar in size, structure, and organization to other members of Vibrionaceae, with two chromosomes of unequal size and multiple rrn operons. Many species of marine fish form bioluminescent symbioses with three Photobacterium species: Photobacterium kishitanii, Photobacterium leiognathi, and Photobacterium mandapamensis. These associations are highly, but not strictly species specific, and they do not exhibit symbiont-host codivergence. Environmental congruence instead of host selection might explain the patterns of symbiont-host affiliation observed from nature. © 2010 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved.

    DOI: 10.1111/j.1574-6976.2010.00250.x

    Scopus

講演・口頭発表等 【 表示 / 非表示

  • Speciation in the Harveyi Clade 招待あり 国際会議

    Urbanczyk Henryk

    ASM Conference on Vibrio2017: The Biology of Vibrios  (Chicago, USA)  American Society for Microbiology (ASM)

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    開催年月日: 2017年10月12日 - 2017年10月15日

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Chicago, USA  

  • Systematics of Vibrionaceae Based on Analysis of Genome Sequence Data 国際会議

    Henryk Urbanczyk

    2016 International Meeting of the Microbiological Society of Korea (MSK)  (Gwangju, Korea)  Microbiological Society of Korea

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    開催年月日: 2016年4月20日 - 2016年4月22日

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Gwangju, Korea  

  • Systematics of "Harveyi clade" bacteria (family Vibrionaceae), using evolutionary bioinformatics. 国際会議

    Henryk Urbanczyk, Yoshitoshi Ogura, Tetsuya Hayashi

    13th Japan-China-Korea Bioinformatics Symposium & Training Course  (沖縄県恩納村)  NIG-OIST

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    開催年月日: 2015年8月10日 - 2015年8月12日

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:沖縄県恩納村  

  • Interspecies and intraspecies recombination frequencies in the ‘Harveryi clade’ bacteria.

    Henryk Urbanczyk, Yoshitoshi Ogura, Tetsuya Hayashi

    第48回 腸炎ビブリオシンポジウム  (函館市)  腸炎ビブリオシンポジウム

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    開催年月日: 2014年11月13日 - 2014年11月14日

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:函館市  

  • ビブリオ科海洋性細菌の海洋動物との相互作用と進化

    Henryk Urbanczyk

    第4回 広島大学理学部生物科学同窓会記念講演会  (東広島市)  広島大学

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    開催年月日: 2013年11月2日

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:東広島市  

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受賞 【 表示 / 非表示

  • Excellent Paper Award of the Society for Biotechnology, Japan (SBJ).

    2012年1月   Society for Biotechnology, Japan (SBJ)  

    Urbanczyk H., Noguchi C., Wu H., Watanabe D., Akao T., Takagi H., Shimoi H.

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    受賞区分:国内外の国際的学術賞  受賞国:日本国

科研費(文科省・学振・厚労省)獲得実績 【 表示 / 非表示

  • How did marine bacterium Vibrio cholerae adapted to freshwater environment?

    研究課題/領域番号:20K07497  2020年04月 - 2023年03月

    科学研究費補助金  基盤研究(C)

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    担当区分:研究代表者