{"id":115,"date":"2025-04-21T16:13:13","date_gmt":"2025-04-21T07:13:13","guid":{"rendered":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/en\/?page_id=115"},"modified":"2026-01-20T00:25:09","modified_gmt":"2026-01-19T15:25:09","slug":"research","status":"publish","type":"page","link":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/research\/","title":{"rendered":"Research overview &#8211; Dr. Jiro F. Mori"},"content":{"rendered":"\n<p class=\"has-medium-font-size\"><strong>Current research<\/strong><\/p>\n\n\n\n<p class=\"has-small-font-size\">In the Mori Lab @YCU, several research projects in microbial ecology employing microbial (meta)genomics \/ transcriptomics techniques are currently under way.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Current Research Interests:<br>(1) Petroleum hydrocarbon-degrading (marine\/terrestrial) microbial communities<br>(2) Interactions between marine microorganisms and plastic debris<br>(3) Microbial adaptation mechanisms against stress caused by heavy metals \/ antibacterial agents<br>(4) Filterable (ultra-small) microorganisms in coastal environments<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u4eca\u8208\u5473\u304c\u3042\u308b\u3053\u3068\uff1a<br>(1) \u77f3\u6cb9\u7cfb\u70ad\u5316\u6c34\u7d20\u3092\u751f\u5206\u89e3\u3059\u308b\uff08\u6d77\u6d0b\/\u571f\u58cc\uff09\u5fae\u751f\u7269\u7fa4\u96c6<br>(2) \u6d77\u6d0b\u5fae\u751f\u7269\u3068\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u95a2\u4fc2<br>(3) \u91cd\u91d1\u5c5e\u3084\u6297\u83cc\u5264\u306b\u3088\u308b\u30b9\u30c8\u30ec\u30b9\u306b\u5bfe\u3059\u308b\u5fae\u751f\u7269\u306e\u8010\u6027\u6a5f\u69cb<br>(4) \u9664\u83cc\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u901a\u904e\u3059\u308b\uff08\u8d85\u5fae\u5c0f\uff09\u6d77\u6d0b\u5fae\u751f\u7269<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">In-depth genomic characterization of petroleum hydrocarbon \/ plastic-degrading microorganisms<\/span><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized has-custom-border is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"311\" src=\"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/en\/wp-content\/uploads\/sites\/2\/2025\/04\/ma-2_for_website.png\" alt=\"\" class=\"wp-image-120\" style=\"border-style:none;border-width:0px;border-radius:0px;width:783px;height:auto\" srcset=\"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-content\/uploads\/sites\/2\/2025\/04\/ma-2_for_website.png 720w, http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-content\/uploads\/sites\/2\/2025\/04\/ma-2_for_website-300x130.png 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size\">\u3000Microorganisms that can degrade petroleum hydrocarbons (alkanes and aromatic hydrocarbons) and utilize them as carbon and energy sources are considered to have acquired and conserve unique functional gene sets which encode specific enzymes that are responsible for bio-transformation of these hydrocarbons in their genomes.\u3000Through complete genome sequencing and comparative genomics analyses, we conduct in-depth genomic characterization of selected petroleum hydrocarbon-degrading microorganisms, for the purpose of identifying key functional genes in their genomes and discovering their novel metabolic potentials.<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000\u77f3\u6cb9\u306b\u542b\u307e\u308c\u308b\u5404\u7a2e\u70ad\u5316\u6c34\u7d20\uff08\u30a2\u30eb\u30ab\u30f3\u3084\u82b3\u9999\u65cf\u70ad\u5316\u6c34\u7d20\uff09\u3084\u77f3\u6cb9\u7cfb\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u3092\u5206\u89e3\u3057\u3001\u70ad\u7d20\u6e90\u30fb\u30a8\u30cd\u30eb\u30ae\u30fc\u6e90\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u308b\u5fae\u751f\u7269\u306f\u3001\u305d\u308c\u3089\u306e\u5206\u89e3\u6a5f\u69cb\u306b\u95a2\u308f\u308b\u7279\u6b8a\u306a\u9175\u7d20\u7fa4\u3092\u30b3\u30fc\u30c9\u3059\u308b\u907a\u4f1d\u5b50\u7fa4\u3092\u7372\u5f97\u3057\u3001\u30b2\u30ce\u30e0\u4e0a\u306b\u4fdd\u6301\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3089\u306e\u5fae\u751f\u7269\u306b\u3064\u3044\u3066\u3001\u6b21\u4e16\u4ee3\u30b7\u30fc\u30b1\u30f3\u30b5\u30fc\u306b\u3088\u308b\u30b2\u30ce\u30e0\u306e\u5b8c\u5168\u89e3\u8aad\u3001\u304a\u3088\u3073\u65e2\u77e5\u306e\u5fae\u751f\u7269\u3068\u306e\u6bd4\u8f03\u30b2\u30ce\u30e0\u89e3\u6790\u3092\u884c\u3046\u3053\u3068\u306b\u3088\u308a\u3001\u6a5f\u80fd\u6027\u907a\u4f1d\u5b50\u7fa4\u306e\u5206\u5e03\u3084\u3001\u65b0\u898f\u306e\u4ee3\u8b1d\u6a5f\u80fd\u7b49\u306b\u3064\u3044\u3066\u8abf\u67fb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">Related research articles:<br>Abe et al., <a href=\"https:\/\/journals.asm.org\/doi\/10.1128\/spectrum.01074-24\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbiology Spectrum<\/em> (2024)<\/a><br>Kayama et al., <a href=\"https:\/\/journals.asm.org\/doi\/10.1128\/spectrum.03149-22\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbiology Spectrum<\/em> (2022)<\/a><br>Mori and Kanaly, <a href=\"https:\/\/journals.asm.org\/doi\/10.1128\/spectrum.02225-21\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbiology Spectrum<\/em> (2022)<\/a><br><br>Complete genome announcements:<br>Abe et al., <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S1874778723000624\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Marine Genomics<\/em> (2023)<\/a><br>Kayama et al., <a href=\"https:\/\/journals.asm.org\/doi\/10.1128\/mra.00532-22\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbiology Resources Announcement<\/em> (2022)<\/a><br>Mori et al., <a href=\"https:\/\/journals.asm.org\/doi\/10.1128\/MRA.00423-21\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbiology Resources Announcement<\/em> (2021)<\/a><br>Mori and Kanaly, <a href=\"https:\/\/mra.asm.org\/content\/10\/1\/e01250-20\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbiology Resources Announcement<\/em> (2021)<\/a><br><br>Presentations:<br>Harada et al., <em>JSME<\/em>, Tokyo (2025)<br>Harada et al., <em>JSEB<\/em>, Sapporo (2025)<br>Mori et al., <em>JSME<\/em>, Hiroshima (2024)<br>Mori et al., <em>ASME\/JSME<\/em>, Hamamatsu (2023)<br>Abe et al., <em>JSME<\/em>, Hamamatsu (2023)<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Multispecies petroleum hydrocarbon biodegradation &#8216;ignited&#8217; by pioneering bacteria in a soil bacterial consortium<\/span><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image is-resized has-custom-border is-style-default\"><img decoding=\"async\" src=\"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/wp-content\/uploads\/2020\/12\/AEM-digest-e1608880901214.png\" alt=\"\" class=\"wp-image-485\" style=\"border-style:none;border-width:0px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px;width:920px;height:auto\"\/><\/figure>\n\n\n\n<p class=\"has-small-font-size\">\u3000In natural environment, cooperative activities of multiple microbial groups are considered to be required to eliminate complex oil pollutant mixtures (alkanes and aromatic hydrocarbons), rather than a single microbial species. Our lab employs a combined metagenomic functional gene analyses and culture-based characterizations of the metabolic capabilities for the oil-degrading bacterial consortium members, to understand their complex roles and interactions developed during oil exposure.<br>\u3000Our recent study using a diesel fuel-degrading soil bacterial consortium revealed that two pioneering members in the consortium, aromatics-degrading <em>Sphingobium <\/em>and alkane-degrading <em>Pseudomonas<\/em>, were responsible for initiating hydrocarbon biotransformations as well as the creation of specialized niches that were occupied by other bacterial members (co-colonizers). Co-existence of a select few pioneers and a multispecies co-colonizers cohort may be a common trait in natural ecosystems exposed to oil pollution.<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000\u77f3\u6cb9\u3092\u69cb\u6210\u3059\u308b\u5404\u7a2e\u70ad\u5316\u6c34\u7d20\uff08\u30a2\u30eb\u30ab\u30f3\u3084\u82b3\u9999\u65cf\u70ad\u5316\u6c34\u7d20\uff09\u306e\u591a\u304f\u306f\u3001\u6025\u6027\u6bd2\u6027\u3084\u5909\u7570\u539f\u6027\uff08\u767a\u30ac\u30f3\u6027\uff09\u3092\u6301\u3064\u305f\u3081\u3001\u77f3\u6cb9\u306e\u5927\u898f\u6a21\u306a\u6d41\u51fa\u306f\u5468\u8fba\u306e\u751f\u614b\u7cfb\u306b\u6df1\u523b\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u77f3\u6cb9\u7cfb\u70ad\u5316\u6c34\u7d20\u3092\u30a8\u30cd\u30eb\u30ae\u30fc\u6e90\u30fb\u70ad\u7d20\u6e90\u3068\u3057\u3066\u5229\u7528\u3057\u3001\u3053\u308c\u3089\u3092\u751f\u5206\u89e3\u3059\u308b\u80fd\u529b\u3092\u6301\u3064\u5fae\u751f\u7269\u304c\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u307e\u3059\u3002\u8907\u96d1\u306a\u6df7\u5408\u7269\u3067\u3042\u308b\u77f3\u6cb9\u306e\u5b8c\u5168\u306a\u751f\u5206\u89e3\u306e\u305f\u3081\u306b\u306f\u3001\u8907\u6570\u7a2e\u306e\u5fae\u751f\u7269\u306e\u5171\u5b58\u304c\u5fc5\u8981\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u6211\u3005\u306e\u7814\u7a76\u5ba4\u3067\u306f\u3001\u30e1\u30bf\u30b2\u30ce\u30e0\u89e3\u6790\u306b\u3088\u308b\u5fae\u751f\u7269\u306e\u6a5f\u80fd\u6027\u907a\u4f1d\u5b50\u7fa4\u306e\u89e3\u6790\u3001\u304a\u3088\u3073\u57f9\u990a\u3057\u305f\u5fae\u751f\u7269\u306e\u5897\u6b96\u80fd\u30fb\u4ee3\u8b1d\u7523\u7269\u306e\u5206\u6790\u3068\u3044\u3046\uff12\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u8907\u96d1\u306a\u77f3\u6cb9\u5206\u89e3\u5fae\u751f\u7269\u7fa4\u96c6\u306b\u304a\u3051\u308b\u5404\u5fae\u751f\u7269\u7a2e\u306e\u5f79\u5272\u3084\u76f8\u4e92\u4f5c\u7528\u6a5f\u69cb\u306e\u89e3\u660e\u3092\u76ee\u6307\u3057\u3066\u3044\u307e\u3059\u3002<br>\u3000\u512a\u308c\u305f\u30c7\u30a3\u30fc\u30bc\u30eb\u6cb9\u751f\u5206\u89e3\u80fd\u3092\u6301\u3064\u571f\u58cc\u7d30\u83cc\u7fa4\u96c6\u3092\u7528\u3044\u305f\u6211\u3005\u306e\u7814\u7a76\u3067\u306f\u3001\u82b3\u9999\u65cf\u5206\u89e3\u7d30\u83cc<em>Sphingobium<\/em>\u5c5e\u3068\u30a2\u30eb\u30ab\u30f3\u5206\u89e3\u7d30\u83cc<em>Pseudomonas<\/em>\u5c5e\u3068\u3044\u3046\uff12\u7fa4\u306e\u300c\u30d1\u30a4\u30aa\u30cb\u30a2\u5fae\u751f\u7269\u300d\u304c\u3044\u3061\u65e9\u304f\u70ad\u5316\u6c34\u7d20\u306e\u5206\u89e3\u3092\u59cb\u3081\u3001\u305d\u306e\u98df\u3079\u6b8b\u3057\u3084\u4ee3\u8b1d\u7523\u7269\u306b\u4f9d\u5b58\u3057\u3066\u4ed6\u306e\u591a\u304f\u306e\u7d30\u83cc\u7a2e\u304c\u5897\u6b96\u3057\u3066\u3044\u305f\u3053\u3068\u3092\u8a3c\u660e\u3057\u307e\u3057\u305f\u3002\u3053\u3046\u3057\u305f\u3001\u5c11\u6570\u306e\u30d1\u30a4\u30aa\u30cb\u30a2\u5fae\u751f\u7269\u306b\u652f\u3048\u3089\u308c\u305f\u5fae\u751f\u7269\u751f\u614b\u7cfb\u304c\u3001\u77f3\u6cb9\u6c5a\u67d3\u74b0\u5883\u306b\u304a\u3044\u3066\u666e\u904d\u7684\u306b\u69cb\u7bc9\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">Related research article:<br>Sato et al., coming soon&#8230;<br>Mori and Kanaly, <a href=\"https:\/\/aem.asm.org\/content\/87\/1\/e02268-20\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Applied and Environmental Microbiology<\/em> (2020)<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size\">Presentations:<br>Sato et al., <em>JSME<\/em>, Tokyo (2025)<br>Sato et al., <em>JSEB<\/em>, Sapporo (2025)<br>Mori et al., <em>JSME<\/em>, Sapporo (2022)<br>Kayama et al., <em>JSME<\/em>, Niigata (2021)<br>Mori et al., <em>JSME<\/em>, Yamanashi (2019)<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Microbial adaptation mechanisms against external stresses<\/span><\/strong><\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000Certain environmental microorganisms (bacteria and fungi) exhibit remarkable abilities to withstand external stresses, such as non-optimal temperatures and toxic heavy metals. Our lab employs genomic and transcriptomic techniques to investigate these adaptive mechanisms, which may be applied to biotechnological applications involving microorganisms that thrive under severe environmental conditions.<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000\u74b0\u5883\u5fae\u751f\u7269\uff08\u7d30\u83cc\u30fb\u771f\u83cc\uff09\u306e\u4e2d\u306b\u306f\u3001\u4f4e\u6e29\/\u9ad8\u6e29\u3084\u91cd\u91d1\u5c5e\u306a\u3069\u306e\u69d8\u3005\u306a\u5916\u754c\u30b9\u30c8\u30ec\u30b9\u306b\u5bfe\u3059\u308b\u512a\u308c\u305f\u9069\u5fdc\u80fd\u529b\u3092\u6301\u3064\u3082\u306e\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u5fae\u751f\u7269\u306e\u30b9\u30c8\u30ec\u30b9\u9069\u5fdc\u6a5f\u69cb\u3092\u30b2\u30ce\u30e0\u30fb\u30c8\u30e9\u30f3\u30b9\u30af\u30ea\u30d7\u30c8\u30fc\u30e0\u89e3\u6790\u3092\u901a\u3057\u3066\u89e3\u304d\u660e\u304b\u3059\u3053\u3068\u3067\u3001\u904e\u9177\u306a\u74b0\u5883\u3067\u3082\u751f\u80b2\u3067\u304d\u308b\u6709\u7528\u306a\u5fae\u751f\u7269\u6a5f\u80fd\u306b\u3064\u3044\u3066\u63a2\u7d22\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">Related research article:<br><br>Yanagita et al., <a href=\"https:\/\/www.microbiologyresearch.org\/content\/journal\/mgen\/10.1099\/mgen.0.001470\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbial Genomics<\/em> (2025)<\/a><br>Tsushima et al., <a href=\"https:\/\/www.jstage.jst.go.jp\/article\/jsme2\/39\/2\/39_ME23102\/_article\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbes and Environments<\/em> (2024)<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size\">Genome announcement:<br>Tsushima et al., <a href=\"https:\/\/journals.asm.org\/doi\/10.1128\/mra.00599-23\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microbiology Resource Announcements<\/em> (2023)<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size\">Presentation:<br>Yanagita et al., <em>JSME<\/em>, Hiroshima (2024)<br>Tsushima et al., <em>JSME<\/em>, Sapporo (2022)<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Past research projects<\/strong><\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Microbial ecology in the Canadian oil sands first large-scale end pit lake in Athabasca, Alberta<\/span><br><\/strong>(2017-2019, supervised by Prof. Lesley Warren, University of Toronto\/McMaster University)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large has-custom-border\"><img decoding=\"async\" src=\"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/wp-content\/uploads\/2019\/11\/BML-1024x379.png\" alt=\"\" class=\"wp-image-225\" style=\"border-style:none;border-width:0px;border-radius:0px\"\/><\/figure>\n\n\n\n<p class=\"has-small-font-size\">\u3000Our combined metagenomic and geochemical survey revealed the presence of putative novel mixotrophic nitrifying-denitrifying bacteria, which dominantly inhabit the ammonia\/oxygen transition zone of the world-first oil sands mining pit lake in the Athabasca oil sands region (Alberta, Canada).<br>Collaborators: Jill Banfield, Lin-Xing Chen (UC Berkeley), Matt Lindsay, Joyce McBeth (Univ. Saskatchewan)<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000\u4e16\u754c\u3067\u552f\u4e00\u306e\u30aa\u30a4\u30eb\u30b5\u30f3\u30c9\u63a1\u6398\u30d4\u30c3\u30c8\u6e56\uff08\u30ab\u30ca\u30c0\u30fb\u30a2\u30eb\u30d0\u30fc\u30bf\u5dde\uff09\u306b\u751f\u606f\u3059\u308b\u5fae\u751f\u7269\u7fa4\u96c6\u306b\u5bfe\u3057\u3066\u30e1\u30bf\u30b2\u30ce\u30e0\u89e3\u6790\u3092\u884c\u3044\u3001\u785d\u5316\u30fb\u8131\u7a92\u306e&#8221;\u4e8c\u5200\u6d41&#8221;\u3092\u3053\u306a\u3059\u65b0\u898f\u306e\u7d30\u83cc\u306e\u5b58\u5728\u3092\u63d0\u5531\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">Related research article:<br>Jessen et al., <a href=\"https:\/\/www.mdpi.com\/2076-2607\/10\/3\/510\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Microorganisms<\/em> (2022)<\/a><br>Mori et al., <a rel=\"noopener noreferrer\" href=\"https:\/\/www.frontiersin.org\/articles\/10.3389\/fmicb.2019.02435\/full\" target=\"_blank\"><em>Frontiers in Microbiology<\/em> (2019)<\/a><br>Chen et al., <a rel=\"noopener noreferrer\" href=\"https:\/\/msystems.asm.org\/content\/4\/5\/e00410-19\" target=\"_blank\"><em>mSystems<\/em> (2019)<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size\">Presentation:<br>Mori et al., <em>ISME17<\/em>, Leipzig (2018)<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Discovery and characterization of <em>Ghiorsea<\/em>, a novel genus of Zetaproteobacteria<\/span><br><\/strong>(2015-2017, supervised by Dr. David Emerson, Bigelow Laboratory for Ocean Sciences)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large has-custom-border\"><img decoding=\"async\" src=\"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/wp-content\/uploads\/2019\/11\/zeta-1024x345.png\" alt=\"\" class=\"wp-image-231\" style=\"border-style:none;border-width:0px;border-radius:0px\"\/><\/figure>\n\n\n\n<p class=\"has-small-font-size\">\u3000We isolated new genus of Zetaproteobacteria from deep ocean (Mid-Atlantic Ridge and Mariana back-arc), that can utilize molecular hydrogen as sole electron donor (in addition to ferrous iron). It is the first report of the hydrogen-oxidizing capability within the class Zetaproteobacteria.<br>Collaborators: Craig Moyer, Kevin Hager (Western Washington Univ.)<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000\u9244(II)\u9178\u5316\u80fd\u306b\u52a0\u3048\u3066\u6c34\u7d20\u9178\u5316\u80fd\u3092\u6709\u3059\u308b\u30bc\u30fc\u30bf\u30d7\u30ed\u30c6\u30aa\u30d0\u30af\u30c6\u30ea\u30a2\u306e\u65b0\u5c5e\u3092\u6df1\u6d77\u304b\u3089\u767a\u898b\u30fb\u5358\u96e2\u3057\u3001\u8a73\u3057\u3044\u57f9\u990a\u8a66\u9a13\u3068\u30b2\u30ce\u30e0\u89e3\u6790\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">Related research article:<br>Mori et al., <a href=\"https:\/\/www.nature.com\/articles\/ismej2017132\" target=\"_blank\" rel=\"noopener noreferrer\"><em>The ISME Journal<\/em> (2017)<\/a><\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Fe-rich pelagic lake aggregates (&#8220;iron snow&#8221;) generated by the Fe-cycling bacterial team<\/span><br><\/strong>(2013-2017, supervised by Prof. Kirsten K\u00fcsel, Friedrich-Schiller-University Jena)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large has-custom-border\"><img decoding=\"async\" src=\"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/wp-content\/uploads\/2019\/11\/ironsnow-1024x271.png\" alt=\"\" class=\"wp-image-240\" style=\"border-style:none;border-width:0px;border-radius:0px\"\/><\/figure>\n\n\n\n<p class=\"has-small-font-size\">\u3000Pelagic lake aggregates enriched with Fe-oxides (called <em>iron snow<\/em>) are formed by the simple bacterial community inhabiting in an acidic, Fe-polluted former lignite mining pit lake in Eastern Germany. These lake aggregates can be considered as a simplified model of bacterial interactions in the pelagic communities. We isolated a novel unique Fe-oxidizing bacterium <em>Acidithrix<\/em>, which plays a central role to form iron-rich aggregates. Additionally, potential chemical cross-talking, co-aggregation system evolved between <em>Acidithrix <\/em>and Fe-reducing <em>Acidiphilium<\/em> was revealed by our metabolomics study, which is a rare example of bacterial inter-species chemical communication.<br>Collaborators: Georg Pohnert, Nico Ueberschaar, Kai Uwe Totsche, Matthias H\u00e4ndel, J\u00fcrgen Popp, Nicolae Tarcea (FSU Jena), Thomas Neu (Helmholtz Centre UFZ)<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000\u30c9\u30a4\u30c4\u6771\u90e8\u306e\u65e7\u8910\u70ad\u9271\u5c71\u30d4\u30c3\u30c8\u6e56\u306b\u304a\u3044\u3066\u9244\u30ea\u30c3\u30c1\u306a\u51dd\u96c6\u4f53\u3092\u5f62\u6210\u3059\u308b\u30e6\u30cb\u30fc\u30af\u306a\u9244\u9178\u5316\u7d30\u83cc<em>Acidithrix<\/em>\u3092\u5358\u96e2\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001<em>Acidithrix<\/em>\u3068\u5171\u5b58\u3059\u308b\u9244\u9084\u5143\u7d30\u83cc<em>Acidiphilium<\/em>\u304c\u5316\u5b66\u7269\u8cea\u3092\u4ecb\u3057\u3066\u60c5\u5831\u4f1d\u9054\u3092\u3057\u3066\u304a\u308a\u3001\u5171\u51dd\u96c6\u3057\u3066\u3044\u308b\u73fe\u8c61\u3092\u30e1\u30bf\u30dc\u30ed\u30df\u30af\u30b9\u89e3\u6790\u306b\u3088\u308a\u660e\u3089\u304b\u306b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u7570\u7a2e\u7d30\u83cc\u9593\u3067\u306e\u5316\u5b66\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u6a5f\u69cb\u3092\u5831\u544a\u3057\u305f\u5e0c\u5c11\u306a\u4f8b\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">Related research article:<br>Mori et al., <a href=\"https:\/\/www.nature.com\/articles\/ismej2016186\" target=\"_blank\" rel=\"noopener noreferrer\"><em>The ISME Journal<\/em> (2017)<\/a><br>Mori et al., <a href=\"https:\/\/www.microbiologyresearch.org\/content\/journal\/micro\/10.1099\/mic.0.000205\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Microbiology <\/em>(2016)<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size\">Presentation:<br>Mori et al., <em>ISME16<\/em>, Montreal (2016)<br>Mori et al., <em>Goldschmidt2016<\/em>, Yokohama (2016)<br>Mori et al., <em>Gordon Research Conference, Applied and Environmental Microbiology<\/em>, Mount Holyoke (2015)<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Streamer-forming algae-mineral-bacteria assemblages in heavy metal-polluted groundwater outflow<\/span><br><\/strong>(2013-2015, supervised by Prof. Kirsten K\u00fcsel, Friedrich-Schiller-University Jena)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large has-custom-border\"><img decoding=\"async\" src=\"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/wp-content\/uploads\/2019\/11\/algae-1024x321.png\" alt=\"\" class=\"wp-image-246\" style=\"border-style:none;border-width:0px;border-radius:0px\"\/><\/figure>\n\n\n\n<p class=\"has-small-font-size\">\u3000Conspicuous, streamer-forming microbial assemblages were observed in a former uranium-mining district in Eastern Germany. Our microbial community analyses and microscopic visualization revealed that the dominant Fe-oxidizing bacterium <em>Gallionella<\/em> were colonizing macroscopic green algae <em>Tribonema<\/em>, presumably utilizing algal exopolymer (i.e. EPS) to stick and dump the Fe-oxides.<br>Collaborator: Thomas Neu (Helmholtz Centre UFZ), Kai Uwe Totsche, Matthias H\u00e4ndel (FSU Jena)<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u3000\u30c9\u30a4\u30c4\u6771\u90e8\u306e\u65e7\u30a6\u30e9\u30f3\u9271\u5c71\u3067\u306f\u9ad8\u6fc3\u5ea6\u306e\u91cd\u91d1\u5c5e\u3092\u542b\u3080\u5730\u4e0b\u6c34\u304c\u6ef2\u51fa\u3057\u3066\u304a\u308a\u3001\u305d\u3053\u3067\u6d3b\u767a\u306b\u751f\u80b2\u3057\u3066\u3044\u308b<em>Gallionella<\/em>\u5c5e\u306e\u9244\u9178\u5316\u7d30\u83cc\u306f\u591a\u7d30\u80de\u85fb\u985e<em>Tribonema<\/em>\u306b\u3079\u3063\u305f\u308a\u3068\u307e\u3068\u308f\u308a\u3064\u3044\u3066\u3044\u307e\u3057\u305f\u3002\u9855\u5fae\u93e1\u3067\u89b3\u5bdf\u3057\u305f\u3068\u3053\u308d\u3001\u85fb\u985e\u304c\u4f5c\u308b\u7d30\u80de\u5916\u591a\u7cd6(\u3044\u308f\u3086\u308bEPS)\u3092\u7d30\u83cc\u304c\u5229\u7528\u3057\u3001\u7523\u751f\u3057\u305f\u9178\u5316\u9244\u3092\u84c4\u7a4d\u3055\u305b\u3066\u3044\u308b\u3053\u3068\u3082\u793a\u5506\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">Related research article:<br>Mori et al., <a href=\"https:\/\/www.biogeosciences.net\/12\/5277\/2015\/\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Biogeosciences<\/em> (2015)<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size\">Presentation:<br>Mori et al., <em>ISME15<\/em>, Seoul (2015)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Current research In the Mori Lab @YCU, several research projects in microbial ecology employing microbial (meta)genomics \/ transcriptomics techniques are currently under way. Current Research Interests:(1) Petroleum hydrocarbon-degrading (marine\/terrestrial) microbial communities(2) Interactions between marine microorganisms and plastic debris(3) Microbial adaptation mechanisms against stress caused by heavy metals \/ antibacterial agents(4) Filterable (ultra-small) microorganisms in coastal&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"class_list":["post-115","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/pages\/115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/comments?post=115"}],"version-history":[{"count":25,"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/pages\/115\/revisions"}],"predecessor-version":[{"id":391,"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/pages\/115\/revisions\/391"}],"wp:attachment":[{"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/media?parent=115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}