{"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":"2026-06-06T00:02:05","modified_gmt":"2026-06-05T15:02:05","slug":"research","status":"publish","type":"page","link":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/research\/","title":{"rendered":"Research overview – Dr. Jiro F. Mori"},"content":{"rendered":"\n

Current research projects<\/strong><\/p>\n\n\n\n

In-depth genomic characterization of organic pollutant-degrading microorganisms<\/span><\/strong><\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000Anthropogenic environmental pollutants, including petroleum-derived compounds, plastics, and pharmaceuticals, are increasingly impacting natural ecosystems. Certain environmental microorganisms can degrade these pollutants and utilize them as carbon and energy sources, thereby playing fundamental roles in ecosystems that emerge in response to environmental pollution. These microorganisms possesses genes responsible for pollutant degradation, and these genes are exchanged among microorganisms through horizontal gene transfer.
\u3000Our research focuses on marine bacteria inhabiting chronically polluted urban coastal environments. Through genome sequencing and comparative genomic analyses of pollutant-degrading marine bacteria, we investigate the diversity, distribution, and evolution of degradation-related genes, and also identifying novel genes and enzymes with potential biotechnological applications.<\/p>\n\n\n\n

\u3000\u77f3\u6cb9\u306b\u542b\u307e\u308c\u308b\u591a\u74b0\u82b3\u9999\u65cf\u70ad\u5316\u6c34\u7d20\uff08Polycyclic Aromatic Hydrocarbons, PAH\uff09\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u6709\u5bb3\u7269\u8cea\u3084\u3001\u77f3\u6cb9\u7531\u6765\u306e\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u3001\u4e0b\u6c34\u3092\u4ecb\u3057\u3066\u74b0\u5883\u4e2d\u306b\u6d41\u5165\u3059\u308b\u533b\u85ac\u54c1\u306a\u3069\u3001\u81ea\u7136\u751f\u614b\u7cfb\u306b\u6df1\u523b\u306a\u5f71\u97ff\u3092\u53ca\u307c\u3057\u3046\u308b\u4eba\u70ba\u8d77\u6e90\u306e\u74b0\u5883\u6c5a\u67d3\u7269\u8cea\u306f\u679a\u6319\u306b\u3044\u3068\u307e\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u74b0\u5883\u4e2d\u306b\u306f\u3001\u3053\u308c\u3089\u306e\u6c5a\u67d3\u7269\u8cea\u3092\u5206\u89e3\u3059\u308b\u3068\u3068\u3082\u306b\u3001\u5897\u6b96\u306e\u305f\u3081\u306e\u70ad\u7d20\u6e90\u30fb\u30a8\u30cd\u30eb\u30ae\u30fc\u6e90\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u308b\u5fae\u751f\u7269\u304c\u5b58\u5728\u3057\u3001\u305d\u308c\u3089\u306f\u74b0\u5883\u6c5a\u67d3\u306b\u5fdc\u7b54\u3057\u3066\u5f62\u6210\u3055\u308c\u308b\u751f\u614b\u7cfb\u306e\u57fa\u790e\u3068\u306a\u308b\u306f\u305f\u3089\u304d\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5fae\u751f\u7269\u306f\u3001\u5404\u7a2e\u6c5a\u67d3\u7269\u8cea\u306e\u5206\u89e3\u306b\u95a2\u4e0e\u3059\u308b\u7279\u6b8a\u306a\u9175\u7d20\u7fa4\u3092\u30b3\u30fc\u30c9\u3059\u308b\u907a\u4f1d\u5b50\u7fa4\u3092\u7372\u5f97\u30fb\u9032\u5316\u3055\u305b\u306a\u304c\u3089\u30b2\u30ce\u30e0\u4e0a\u306b\u4fdd\u6301\u3057\u3066\u304a\u308a\u3001\u3055\u3089\u306b\u3001\u305d\u308c\u3089\u306e\u907a\u4f1d\u5b50\u306f\u6c34\u5e73\u4f1d\u64ad\u3092\u4ecb\u3057\u3066\u7570\u306a\u308b\u5fae\u751f\u7269\u9593\u3092\u983b\u7e41\u306b\u79fb\u52d5\u3057\u3066\u3044\u307e\u3059\u3002
\u3000\u6211\u3005\u306f\u3001\u591a\u69d8\u306a\u6c5a\u67d3\u7269\u8cea\u304c\u7d99\u7d9a\u7684\u306b\u6d41\u5165\u3059\u308b\u300c\u5e38\u5728\u7684\u8907\u5408\u6c5a\u67d3\u74b0\u5883\u300d\u3067\u3042\u308b\u90fd\u5e02\u6cbf\u5cb8\u57df\u306b\u751f\u606f\u3059\u308b\u6d77\u6d0b\u7d30\u83cc\u3092\u4e2d\u5fc3\u306b\u3001\u500b\u3005\u306e\u6c5a\u67d3\u7269\u8cea\u3092\u5206\u89e3\u3059\u308b\u80fd\u529b\u3092\u3082\u3064\u7d30\u83cc\u3092\u898b\u3064\u3051\u51fa\u3057\u3001\u305d\u306e\u5b8c\u5168\u30b2\u30ce\u30e0\u89e3\u6790\u3001\u304a\u3088\u3073\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u4e0a\u306e\u65e2\u77e5\u7d30\u83cc\u682a\u30b2\u30ce\u30e0\u3068\u306e\u7db2\u7f85\u7684\u306a\u6bd4\u8f03\u30b2\u30ce\u30e0\u89e3\u6790\u3092\u901a\u3057\u3066\u3001\u74b0\u5883\u4e2d\u3067\u5171\u6709\u3055\u308c\u308b\u6c5a\u67d3\u7269\u8cea\u5206\u89e3\u907a\u4f1d\u5b50\u306e\u5206\u5e03\u3084\u591a\u69d8\u6027\u3092\u660e\u3089\u304b\u306b\u3059\u308b\u3068\u3068\u3082\u306b\u3001\u65b0\u898f\u306e\u6709\u7528\u907a\u4f1d\u5b50\u30fb\u9175\u7d20\u306e\u63a2\u7d22\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

Related research articles:
Harada et al., coming soon…
Abe et al., Microbiology Spectrum<\/em> (2024)<\/a>
Kayama et al., Microbiology Spectrum<\/em> (2022)<\/a>
Mori and Kanaly, Microbiology Spectrum<\/em> (2022)<\/a>

Complete genome announcements:
Abe et al., Marine Genomics<\/em> (2023)<\/a>
Kayama et al., Microbiology Resources Announcement<\/em> (2022)<\/a>
Mori et al., Microbiology Resources Announcement<\/em> (2021)<\/a>
Mori and Kanaly, Microbiology Resources Announcement<\/em> (2021)<\/a>

Presentations:
Harada et al., JSME<\/em>, Tokyo (2025)
Harada et al., JSEB<\/em>, Sapporo (2025)
Mori et al., JSME<\/em>, Hiroshima (2024)
Mori et al., ASME\/JSME<\/em>, Hamamatsu (2023)
Abe et al., JSME<\/em>, Hamamatsu (2023)<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

Comprehensive understanding of pollutant biodegradation mechanisms through coordinated multispecies bacterial behavior<\/span><\/strong><\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000Microorganisms in nature function as complex communities rather than as individuals. In polluted environments, bacteria capable of degrading contaminants initially proliferate, while other species that utilize their metabolic byproducts subsequently accumulate, leading to the formation of new microbial ecosystems. This process is particularly important in petroleum-contaminated environments, where multiple bacterial species interact to form complex degradation networks. Indeed, some structurally complex pollutants can only be completely degraded through the cooperative activities of multiple species.
\u3000To understand how such bacterial communities respond to pollution and function collectively as a microbial \u201csuperorganism,\u201d we employ two complementary approaches: (i) metagenomic analyses to reconstruct the genomes of key community members and (ii) investigation of interaction mechanisms among isolated bacterial species. Through these studies, we aim to elucidate the principles governing microbial ecosystem development in polluted environments.<\/p>\n\n\n\n

\u3000\u74b0\u5883\u4e2d\u3067\u5fae\u751f\u7269\u306f\u5e38\u306b\u300c\u7fa4\u96c6\u300d\u3068\u3057\u3066\u3075\u308b\u307e\u3044\u307e\u3059\u30021\u30df\u30ea\u30ea\u30c3\u30c8\u30eb\u306e\u6d77\u6c34\u306b\u306f\u7d04100\u4e07\u500b\u4f53\u3082\u306e\u7d30\u83cc\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3068\u3055\u308c\u3001\u81ea\u7136\u754c\u3067\u306f\u74b0\u5883\u5909\u5316\u306b\u5fdc\u7b54\u3057\u3066\u7d30\u83cc\u7fa4\u96c6\u306e\u7d44\u6210\u304c\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306b\u5909\u52d5\u3057\u307e\u3059\u3002\u6c5a\u67d3\u7269\u8cea\u306b\u66dd\u9732\u3055\u308c\u305f\u74b0\u5883\u3067\u306f\u3001\u305d\u306e\u7269\u8cea\u3092\u5206\u89e3\u3067\u304d\u308b\u4e00\u90e8\u306e\u7d30\u83cc\u304c\u3044\u3061\u65e9\u304f\u5897\u6b96\u3092\u59cb\u3081\u3001\u3084\u304c\u3066\u305d\u308c\u3089\u306e\u4ee3\u8b1d\u7523\u7269\u3092\u5229\u7528\u3059\u308b\u4ed6\u306e\u7a2e\u985e\u306e\u7d30\u83cc\u304c\u96c6\u7a4d\u3059\u308b\u3053\u3068\u3067\u3001\u65b0\u305f\u306a\u5fae\u751f\u7269\u751f\u614b\u7cfb\u304c\u5f62\u6210\u3055\u308c\u307e\u3059\u3002\u7279\u306b\u3001\u591a\u69d8\u306a\u7269\u8cea\u306e\u6df7\u5408\u7269\u3067\u3042\u308b\u77f3\u6cb9\u306b\u66dd\u9732\u3055\u308c\u305f\u74b0\u5883\u3067\u306f\u3001\u8907\u6570\u7a2e\u306e\u7d30\u83cc\u304c\u76f8\u4e92\u4f5c\u7528\u3057\u306a\u304c\u3089\u8907\u96d1\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5f62\u6210\u3059\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u5b9f\u969b\u306b\u3001\u8907\u6570\u7a2e\u306e\u7d30\u83cc\u304c\u5171\u5b58\u3057\u3066\u306f\u3058\u3081\u3066\u5b8c\u5168\u5206\u89e3\u304c\u53ef\u80fd\u3068\u306a\u308b\u8907\u96d1\u306a\u69cb\u9020\u306e\u6c5a\u67d3\u7269\u8cea\u3082\u5b58\u5728\u3057\u307e\u3059\u3002
\u3000\u3053\u306e\u3088\u3046\u306a\u3001\u74b0\u5883\u6c5a\u67d3\u306b\u5fdc\u7b54\u3057\u3066\u3001\u3042\u305f\u304b\u3082\u4e00\u3064\u306e\u300c\u8d85\u500b\u4f53\u300d\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u7d30\u83cc\u7fa4\u96c6\u306e\u6319\u52d5\u306b\u3064\u3044\u3066\u7406\u89e3\u3059\u308b\u305f\u3081\u3001\u6211\u3005\u306f \u2460\u7fa4\u96c6\u306e\u30e1\u30bf\u30b2\u30ce\u30e0\u89e3\u6790\u306b\u3088\u308b\u4e3b\u8981\u306a\u7d30\u83cc\u7a2e\u306e\u30b2\u30ce\u30e0\u60c5\u5831\u306e\u89e3\u8aad\u3001\u2461\u5358\u96e2\u3057\u305f\u7570\u7a2e\u7d30\u83cc\u9593\u306e\u76f8\u4e92\u4f5c\u7528\u6a5f\u69cb\u306e\u63a2\u7d22 \u306e\u4e8c\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u7814\u7a76\u3092\u9032\u3081\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u8abf\u67fb\u3092\u901a\u3057\u3066\u3001\u6c5a\u67d3\u74b0\u5883\u306b\u304a\u3051\u308b\u5fae\u751f\u7269\u751f\u614b\u7cfb\u306e\u5f62\u6210\u539f\u7406\u3084\u3001\u305d\u306e\u666e\u904d\u7684\u306a\u69cb\u7bc9\u69d8\u5f0f\u306e\u89e3\u660e\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

Related research article:
Sato et al., Microbiology<\/em> (2026)<\/a>
Mori and Kanaly, Applied and Environmental Microbiology<\/em> (2020)<\/a><\/p>\n\n\n\n

Presentations:
Sato et al., JSBBA<\/em>, Kyoto (2026)
Sato et al., JSME<\/em>, Tokyo (2025)
Sato et al., JSEB<\/em>, Sapporo (2025)
Mori et al., JSME<\/em>, Sapporo (2022)
Kayama et al., JSME<\/em>, Niigata (2021)
Mori et al., JSME<\/em>, Yamanashi (2019)<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

Microbial adaptation mechanisms against external stresses<\/span><\/strong><\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u3000Bioremediation using pollutant-degrading microorganisms is attracting increasing attention as a low-cost and environmentally friendly technology. However, microorganisms deployed in contaminated environments must cope with various stresses, including fluctuations in temperature and pH as well as exposure to toxic compounds such as heavy metals, which can limit their growth and activity. Therefore, microorganisms with both strong pollutant-degrading capabilities and high tolerance to environmental stresses are particularly valuable for practical applications.
\u3000To identify such microorganisms, we isolate environmentally robust pollutant degraders and investigate their stress adaptation mechanisms through genomic and transcriptomic analyses. Our goal is to elucidate the survival strategies that enable microbial activity under harsh conditions and to provide a foundation for future biotechnological applications.<\/p>\n\n\n\n

\u3000\u6c5a\u67d3\u7269\u8cea\u5206\u89e3\u80fd\u3092\u6709\u3059\u308b\u5fae\u751f\u7269\u3092\u5229\u7528\u3057\u305f\u74b0\u5883\u6d44\u5316\u306f\u3001\u4f4e\u30b3\u30b9\u30c8\u304b\u3064\u74b0\u5883\u8ca0\u8377\u306e\u5c0f\u3055\u3044\u6280\u8853\u3068\u3057\u3066\u95a2\u5fc3\u3092\u96c6\u3081\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001\u81ea\u7136\u74b0\u5883\u306f\u5b9f\u9a13\u5ba4\u3068\u306f\u5927\u304d\u304f\u7570\u306a\u308a\u3001\u5b9f\u969b\u306e\u6c5a\u67d3\u74b0\u5883\u3067\u5fae\u751f\u7269\u3092\u5229\u7528\u3059\u308b\u306b\u3042\u305f\u3063\u3066\u306f\u3001\u73fe\u5834\u306e\u6e29\u5ea6\u3084pH\u306e\u5909\u52d5\u306b\u52a0\u3048\u3001\u91cd\u91d1\u5c5e\u306a\u3069\u306e\u6709\u6bd2\u7269\u8cea\u306b\u3088\u308b\u30b9\u30c8\u30ec\u30b9\u304c\u5fae\u751f\u7269\u306e\u5897\u6b96\u3084\u6d3b\u6027\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u3092\u8003\u616e\u306b\u5165\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u74b0\u5883\u6d44\u5316\u3078\u306e\u5fdc\u7528\u306b\u306f\u3001\u6c5a\u67d3\u7269\u8cea\u5206\u89e3\u80fd\u306b\u52a0\u3048\u3066\u3001\u591a\u69d8\u306a\u5916\u754c\u30b9\u30c8\u30ec\u30b9\u3092\u514b\u670d\u3067\u304d\u308b\u512a\u308c\u305f\u9069\u5fdc\u80fd\u529b\u3092\u3082\u3064\u5fae\u751f\u7269\u304c\u6709\u7528\u3068\u306a\u308a\u307e\u3059\u3002
\u3000\u305d\u3053\u3067\u6211\u3005\u306f\u3001\u6c5a\u67d3\u7269\u8cea\u5206\u89e3\u80fd\u306b\u52a0\u3048\u3066\u512a\u308c\u305f\u74b0\u5883\u30b9\u30c8\u30ec\u30b9\u8010\u6027\u3092\u5099\u3048\u308b\u5fae\u751f\u7269\u3092\u74b0\u5883\u4e2d\u304b\u3089\u898b\u3064\u3051\u51fa\u3057\u3001\u305d\u308c\u3089\u304c\u3082\u3064\u30b9\u30c8\u30ec\u30b9\u9069\u5fdc\u6a5f\u69cb\u3092\u30b2\u30ce\u30e0\u89e3\u6790\u304a\u3088\u3073\u30c8\u30e9\u30f3\u30b9\u30af\u30ea\u30d7\u30c8\u30fc\u30e0\u89e3\u6790\u3092\u901a\u3057\u3066\u8abf\u67fb\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u904e\u9177\u306a\u74b0\u5883\u4e0b\u3067\u3082\u5b89\u5b9a\u3057\u3066\u6a5f\u80fd\u3059\u308b\u5fae\u751f\u7269\u306e\u751f\u5b58\u6226\u7565\u3092\u660e\u3089\u304b\u306b\u3057\u3001\u30d0\u30a4\u30aa\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3078\u306e\u5fdc\u7528\u57fa\u76e4\u306e\u69cb\u7bc9\u3082\u76ee\u6307\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

Related research article:

Yanagita et al., Microbial Genomics<\/em> (2025)<\/a>
Tsushima et al., Microbes and Environments<\/em> (2024)<\/a><\/p>\n\n\n\n

Genome announcement:
Tsushima et al., Microbiology Resource Announcements<\/em> (2023)<\/a><\/p>\n\n\n\n

Presentation:
Yanagita et al., JSME<\/em>, Hiroshima (2024)
Tsushima et al., JSME<\/em>, Sapporo (2022)<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

Past research projects<\/strong><\/p>\n\n\n\n

Microbial ecology in the Canadian oil sands first large-scale end pit lake in Athabasca, Alberta<\/span>
<\/strong>(2017-2019, supervised by Prof. Lesley Warren, University of Toronto\/McMaster University)<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\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).
Collaborators: Jill Banfield, Lin-Xing Chen (UC Berkeley), Matt Lindsay, Joyce McBeth (Univ. Saskatchewan)<\/p>\n\n\n\n

\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”\u4e8c\u5200\u6d41”\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

Related research article:
Jessen et al., Microorganisms<\/em> (2022)<\/a>
Mori et al., Frontiers in Microbiology<\/em> (2019)<\/a>
Chen et al., mSystems<\/em> (2019)<\/a><\/p>\n\n\n\n

Presentation:
Mori et al., ISME17<\/em>, Leipzig (2018)<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

Discovery and characterization of Ghiorsea<\/em>, a novel genus of Zetaproteobacteria<\/span>
<\/strong>(2015-2017, supervised by Dr. David Emerson, Bigelow Laboratory for Ocean Sciences)<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\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.
Collaborators: Craig Moyer, Kevin Hager (Western Washington Univ.)<\/p>\n\n\n\n

\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

Related research article:
Mori et al., The ISME Journal<\/em> (2017)<\/a><\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

Fe-rich pelagic lake aggregates (“iron snow”) generated by the Fe-cycling bacterial team<\/span>
<\/strong>(2013-2017, supervised by Prof. Kirsten K\u00fcsel, Friedrich-Schiller-University Jena)<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u3000Pelagic lake aggregates enriched with Fe-oxides (called 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 Acidithrix<\/em>, which plays a central role to form iron-rich aggregates. Additionally, potential chemical cross-talking, co-aggregation system evolved between Acidithrix <\/em>and Fe-reducing Acidiphilium<\/em> was revealed by our metabolomics study, which is a rare example of bacterial inter-species chemical communication.
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

\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\u83ccAcidithrix<\/em>\u3092\u5358\u96e2\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001Acidithrix<\/em>\u3068\u5171\u5b58\u3059\u308b\u9244\u9084\u5143\u7d30\u83ccAcidiphilium<\/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

Related research article:
Mori et al., The ISME Journal<\/em> (2017)<\/a>
Mori et al., Microbiology <\/em>(2016)<\/a><\/p>\n\n\n\n

Presentation:
Mori et al., ISME16<\/em>, Montreal (2016)
Mori et al., Goldschmidt2016<\/em>, Yokohama (2016)
Mori et al., Gordon Research Conference, Applied and Environmental Microbiology<\/em>, Mount Holyoke (2015)<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

Streamer-forming algae-mineral-bacteria assemblages in heavy metal-polluted groundwater outflow<\/span>
<\/strong>(2013-2015, supervised by Prof. Kirsten K\u00fcsel, Friedrich-Schiller-University Jena)<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\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 Gallionella<\/em> were colonizing macroscopic green algae Tribonema<\/em>, presumably utilizing algal exopolymer (i.e. EPS) to stick and dump the Fe-oxides.
Collaborator: Thomas Neu (Helmholtz Centre UFZ), Kai Uwe Totsche, Matthias H\u00e4ndel (FSU Jena)<\/p>\n\n\n\n

\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\u308bGallionella<\/em>\u5c5e\u306e\u9244\u9178\u5316\u7d30\u83cc\u306f\u591a\u7d30\u80de\u85fb\u985eTribonema<\/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

Related research article:
Mori et al., Biogeosciences<\/em> (2015)<\/a><\/p>\n\n\n\n

Presentation:
Mori et al., ISME15<\/em>, Seoul (2015)<\/p>\n","protected":false},"excerpt":{"rendered":"

Current research projects In-depth genomic characterization of organic pollutant-degrading microorganisms \u3000Anthropogenic environmental pollutants, including petroleum-derived compounds, plastics, and pharmaceuticals, are increasingly impacting natural ecosystems. Certain environmental microorganisms can degrade these pollutants and utilize them as carbon and energy sources, thereby playing fundamental roles in ecosystems that emerge in response to environmental pollution. These microorganisms possesses…<\/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":34,"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/pages\/115\/revisions"}],"predecessor-version":[{"id":450,"href":"http:\/\/www-user.yokohama-cu.ac.jp\/~envmicro\/mori\/wp-json\/wp\/v2\/pages\/115\/revisions\/450"}],"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}]}}