Updated on 2026/05/23

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写真a

 
Jiro Mori
 
Organization
Graduate School of Nanobioscience Department of Life and Environmental System Science Associate Professor
School of Science Department of Science
Title
Associate Professor
Homepage
http://www-user.yokohama-cu.ac.jp/~envmicro/mori/
Profile

Reseracher in Microbial Ecology. Father of two.

External link

Degree

  • Dr. rer. nat. ( Friedrich Schiller University Jena )

Research Interests

  • Microbial interaction

  • Iron-oxidizing bacteria

  • Metagenomics

  • Bioinformatics

  • environmental pollutant

  • Microbial Ecology

  • Environmental Microbiology

Research Areas

  • Life Science / Applied microbiology  / Microbial Ecology

  • Life Science / Ecology and environment

  • Life Science / Applied microbiology  / Environmental Microbiology

Education

  • Friedrich Schiller University Jena, Germany

    2013.6 - 2017.4

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    Country： Germany

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  • Hokkaido University   Graduate School of Agriculture   Division of Applied Bioscience

    2011.4 - 2013.3

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  • Hokkaido University   School of Agriculture   Department of Applied Bioscience

    2007.4 - 2011.3

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Research History

  • Cabinet Office, Goverment of Japan   Science and Technology Policy Fellow

    2025.6

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  • Yokohama City University   Associate Professor

    2025.4

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  • Yokohama City University   Assistant Professor

    2018.9 - 2025.3

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  • University of Toronto   Postdoctoral Fellow

    2018.2 - 2018.8

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  • McMaster University   Postdoctoral Fellow

    2017.2 - 2018.1

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  • Bigelow Laboratory for Ocean Sciences, USA

    2015.4 - 2015.7

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    Country：United States

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Professional Memberships

  • Japanese Society of Microbial Ecology

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  • International Society for Microbial Ecology

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  • American Society for Microbiology

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Papers

  • Genomic and transcriptomic insights into Achromobacter–Sphingobium co-colonization within polycyclic aromatic hydrocarbon-exposed bacterial communities Reviewed

    Mana Sato, Robert A Kanaly, Jiro F Mori

    Microbiology   172 ( 5 )   2026.5

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Microbiology Society  

    Efficient and complete biodegradation of polycyclic aromatic hydrocarbons (PAHs), which are persistent and genotoxic petroleum hydrocarbon pollutants, is often considered to require the cooperative activities of multiple bacterial groups, and bacterial (meta)genomic investigations of PAH-exposed ecosystems have contributed to elucidating such interactions. In this study, two bacterial isolates representing dominant genera within a PAH-grown soil bacterial consortium, Achromobacter xylosoxidans strain KK8 and Sphingobium barthaii strain KK22, were utilized as model organisms to investigate the relationship between these bacterial genera during PAH biodegradation. Strain KK8 has previously been characterized as incapable of biodegrading PAHs; thus, Achromobacter in the consortium appears to grow under metabolic dependence on PAH biodegradation products (i.e. salicylic acid) provided by the pioneer PAH-degrading Sphingobium . This metabolic relationship was evidenced through complete genome sequencing and functional gene analysis of strain KK8 conducted in the present study. To further elucidate potential interactions between Achromobacter and Sphingobium , cell-free filtrate-exchange experiments were performed using these isolates, revealing that strain KK8 exhibited a significantly shortened growth lag phase in the presence of the filtrate of strain KK22. Subsequent transcriptomic profiling of strain KK8 indicated that exposure to the Sphingobium filtrate up-regulated functional genes likely associated with Achromobacter colonization, including genes involved in biofilm formation ( pga genes) or cell division ( fts genes). Enhanced biofilm formation of strain KK8 in response to strain KK22 filtrate was additionally evidenced by biofilm assays. Taken together, these results suggest that the high abundance of Achromobacter within the consortium may be stimulated by Sphingobium when they are present together, potentially via extracellular signalling molecule(s). As the co-occurrence of Achromobacter and Sphingobium has been repeatedly documented in PAH-degrading bacterial communities, elucidating the mechanisms underlying their specific interspecies co-colonization during PAH biodegradation shall be valuable for the future biotechnological applications utilizing these bacteria.

    File： Sato Microbiology-sgm 2026.pdf

    DOI： 10.1099/mic.0.001712

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  • Transcriptomic profiling of Pseudomonas migulae revealed gene regulatory properties during biodegradation of aromatic hydrocarbons under cold stress Reviewed

    Hiroki Yanagita, Robert A. Kanaly, Jiro F. Mori

    Microbial Genomics   11 ( 9 )   2025.9

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Microbiology Society  

    Bacterial strains within the genus Pseudomonas have often been characterized for their ability to biodegrade aromatic hydrocarbon pollutants, as well as high adaptability to diverse environmental stresses, including cold stress. In this study, a newly isolated bacterium, Pseudomonas migulae strain HY-2, which can grow at 10 °C by utilizing the aromatic hydrocarbon pollutant p-hydroxybenzoic acid (PHBA) as the sole carbon source, was employed as a model to investigate bacterial gene regulatory properties during cold stress adaptation and aromatic hydrocarbon biodegradation. Complete genome sequencing and transcriptomic analysis under cold conditions revealed that strain HY-2 up-regulates at least ten types of chaperone proteins potentially involved in transcriptional, translational and post-translational regulation to maintain protein homeostasis. Transcriptomic data also suggested that cold-induced biofilm formation was enhanced by exogenous polyamines, spermidine or putrescine, which was confirmed through subsequent bioassays. It is hypothesized that exogenous polyamines, commonly supplied by surrounding organisms, enhance biofilm formation in Pseudomonas, thereby aiding in cold stress resistance. Notably, expressions of functional genes responsible for PHBA biodegradation in strain HY-2 were mostly unaffected by cold stress – only three genes, including a PHBA transporter gene, were significantly up-regulated while the neighbouring 10 genes were unaffected – resulting in minimal impact on growth efficiency at 10 °C. These findings provide new insights into the genetic properties of cold adaptation and stress resilience in Pseudomonas and reaffirm the potential of this genus for bioremediation applications in natural environments without the need for extensive anthropogenic intervention.

    File： mgen001470.pdf

    DOI： 10.1099/mgen.0.001470

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  • Utilization of the C9 aromatic hydrocarbon n-propylbenzene by Sphingobium barthaii KK22 and coexistence of multiple biodegradation pathways Reviewed

    Miharu Sakai, Jiro F. Mori, Robert A. Kanaly

    Biodegradation   36 ( 4 )   2025.6

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1007/s10532-025-10149-x

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    Other Link： https://link.springer.com/article/10.1007/s10532-025-10149-x/fulltext.html

  • Identification of a putative novel polycyclic aromatic hydrocarbon-biodegrading gene cluster in a marine Roseobacteraceae bacterium Sagittula sp. MA-2 Reviewed

    Mayuko Abe, Miharu Sakai, Robert A. Kanaly, Jiro F. Mori

    Microbiology Spectrum   13   2024.11

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  • Assessment of bacterial biotransformation of alkylnaphthalene lubricating base oil component 1-butylnaphthalene by LC/ESI-MS(/MS) Reviewed

    Miharu Sakai, Jiro F. Mori, Robert A. Kanaly

    Chemosphere   364   143269   2024.9

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.chemosphere.2024.143269

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  • Formation of biogenic manganese oxide nodules on hyphae of a new fungal isolate of Periconia that immobilizes aqueous copper Reviewed

    Shihori Tsushima, Yuma Nishi, Ryo Suzuki, Masaru Tachibana, Robert A. Kanaly, Jiro F. Mori

    Microbes and Environments   39 ( 2 )   2024.6

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Japanese Society of Microbial Ecology  

    File： 39_ME23102.pdf

    DOI： 10.1264/jsme2.me23102

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  • Whole-genome sequence of Periconia sp. strain TS-2, an ascomycete fungus isolated from a freshwater outflow and capable of Mn(II) oxidation Reviewed

    Shihori Tsushima, Robert A. Kanaly, Jiro F. Mori

    Microbiology Resource Announcements   2023.11

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：American Society for Microbiology  

    ABSTRACT

    Members of the genus Periconia are commonly found as plant-associated filamentous fungi. Here, the first draft genome sequence of a new Periconia strain, TS-2, that was isolated from freshwater outflow sediment and possesses the ability to oxidize dissolved Mn(II), was obtained and has an estimated size of 40.7 Mb.

    File： tsushima-et-al-2023-whole-genome-sequence-of-periconia-sp-strain-ts-2-an-ascomycete-fungus-isolated-from-a-freshwater.pdf

    DOI： 10.1128/mra.00599-23

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  • Genomic analysis of a marine alphaproteobacterium Sagittula sp. strain MA-2 that carried eight plasmids Reviewed

    Mayuko Abe, Robert A. Kanaly, Jiro F. Mori

    Marine Genomics   72   101070 - 101070   2023.9

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.margen.2023.101070

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  • Nondesulfurizing benzothiophene biotransformation to hetero and homodimeric ortho-substituted diaryl disulfides by the model PAH-degrading Sphingobium barthaii Reviewed

    Yuki Nemoto, Kohei Ozawa, Jiro F. Mori, Robert A. Kanaly

    Biodegradation   2023.2

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  • Comprehensive genomic characterization of marine bacteria Thalassospira spp. provides insights into their ecological roles in aromatic hydrocarbon-exposed environments. Reviewed

    Go Kayama, Robert A. Kanaly, Jiro F. Mori

    Microbiology Spectrum   2022.10

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：American Society for Microbiology  

    Comprehensive investigation of multiple genomic data sets from targeted microbial taxa deposited in databases may provide substantial information to predict metabolic capabilities and ecological roles in different environments. This study is the first report that details the functional profiling of Thalassospira spp. that have repeatedly been found in polycyclic aromatic hydrocarbon (PAH)-exposed marine bacterial communities by using genomic data from a new isolate, Thalassospira strain GO-4, and other strains in databases.

    File： spectrum.03149-22-1.pdf

    DOI： 10.1128/spectrum.03149-22

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  • Growth of Sphingobium barthaii KK22 on 1-ethylnaphthalene reveals diverse oxidative transformations and a complex metabolite profile Reviewed

    Miharu Sakai, Yuna Tomiyama, Jiro F. Mori, Robert A. Kanaly

    International Biodeterioration & Biodegradation   175   105500 - 105500   2022.9

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.ibiod.2022.105500

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  • Complete genome sequence of Thalassospira sp. strain GO-4, a marine bacterium isolated from a phenanthrene-enriched bacterial consortium Reviewed

    Go Kayama, Robert A. Kanaly, Jiro F. Mori

    Microbiology Resource Announcements   11 ( 8 )   2022.7

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：American Society for Microbiology  

    The genus Thalassospira has often been studied as a potential major contributing member of aromatic hydrocarbon-exposed microbial communities. Here, the complete genome sequence of a new isolate of Thalassospira , strain GO-4, was obtained and was confirmed to possess functional genes that are responsible for its metabolism of phthalic acid.

    File： Kayama MRA 2022.pdf

    DOI： 10.1128/mra.00532-22

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  • Alum Addition Triggers Hypoxia in an Engineered Pit Lake Reviewed

    Gerdhard L. Jessen, Lin-Xing Chen, Jiro F. Mori, Tara E. Colenbrander Nelson, Gregory F. Slater, Matthew B. J. Lindsay, Jillian F. Banfield, Lesley A. Warren

    Microorganisms   10 ( 3 )   2022.2

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  • Natural chromosome-chromid fusion across rRNA operons in a Burkholderiaceae bacterium Reviewed

    Jiro F. Mori, Robert A. Kanaly

    Microbiology Spectrum   10 ( 1 )   2022.1

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    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：American Society for Microbiology  

    A bacterial chromosome that was naturally fused with the secondary chromosome, or “chromid,” and presented as an unexpectedly large single replicon was discovered in the genome of
    <named-content content-type="genus-species">Cupriavidus necator</named-content>
    strain KK10, a biotechnologically useful member of the family
    <italic>Burkholderiaceae</italic>
    . Although
    <italic>Burkholderiaceae</italic>
    is a well-documented group that conserves chromids in their genomes, this chromosomal fusion event has not been previously reported for this family.

    File： Mori & Kanaly Microbiol Spectr 2022.pdf

    DOI： 10.1128/spectrum.02225-21

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  • Cometabolic benzo[a]pyrene biotransformation by Sphingobium barthaii KK22 proceeds through the kata-annelated ring and 1-pyrenecarboxylic acid to downstream products Reviewed

    Minami Izawa, Miharu Sakai, Jiro F. Mori, Robert A. Kanaly

    Journal of Hazardous Materials Advances   4   100018 - 100018   2021.12

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    File： 1-s2.0-S2772416621000188-main.pdf

    DOI： 10.1016/j.hazadv.2021.100018

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  • Complete Genome Sequence of Cupriavidus necator KK10, an Azaarene-Degrading and Polyhydroxyalkanoate-Producing Soil Bacterium Reviewed

    Jiro F. Mori, Miho Nagai, Robert A. Kanaly

    Microbiology Resource Announcements   10 ( 28 )   2021.7

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    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：American Society for Microbiology  

    <named-content content-type="genus-species">Cupriavidus necator</named-content>
    KK10 has been investigated in azaarene and diesel fuel biodegradation studies and is capable of polyhydroxyalkanoate production. Its complete genome sequence revealed two closed circular sequences, the chromosome (6.68 Mb) and plasmid (1.67 Mb). The KK10 genome carries functional genes potentially responsible for azaarene biodegradation and polyhydroxyalkanoate (PHA) biosynthesis.

    File： Mori MRA KK10.pdf

    DOI： 10.1128/mra.00423-21

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  • Functionalization of the model asphaltene 1-dodecylnaphthalene by Pseudomonas aeruginosa KK6 through subterminal metabolism Reviewed

    Yuna Tomiyama, Toshihide Takeshita, Jiro F. Mori, Robert A. Kanaly

    Journal of Petroleum Science and Engineering   108870 - 108870   2021.5

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.petrol.2021.108870

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  • Complete Genome Sequence of Sphingobium barthaii KK22, a High-Molecular-Weight Polycyclic Aromatic Hydrocarbon-Degrading Soil Bacterium Reviewed

    Jiro F. Mori, Robert A. Kanaly

    Microbiology Resource Announcements   10 ( 1 )   2021.1

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    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：American Society for Microbiology  

    <title>ABSTRACT</title>
    <named-content content-type="genus-species">Sphingobium barthaii</named-content> KK22<sup>T</sup> is a high-molecular-weight polycyclic aromatic hydrocarbon-degrading soil bacterium that has been investigated in biotransformation, microbial ecology, and DNA damage studies. The complete genome sequence of <named-content content-type="genus-species">S. barthaii</named-content> revealed four closed circular sequences, including two chromosomes, a megaplasmid, and a smaller plasmid, by hybrid assembly using short- and long-read sequencing technologies.

    File： Mori & Kanaly 2021 MRA.pdf

    DOI： 10.1128/mra.01250-20

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  • Multispecies diesel fuel biodegradation and niche formation are ignited by pioneer hydrocarbon-utilizing proteobacteria in a soil bacterial consortium Reviewed

    Jiro F. Mori, Robert A. Kanaly

    Applied and Environmental Microbiology   2020.10

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    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：American Society for Microbiology  

    A soil bacterial consortium that was grown on diesel fuel and consisted of more than 10 members from different genera was maintained through repetitive sub-culturing and was utilized as a practical model to investigate a bacterial community that was continuously exposed to petroleum hydrocarbons. Through metagenomics analyses, consortium member isolation, growth assays and metabolite identification which supported the linkage of genomic data and functionality, two pioneering genera, <italic>Sphingobium</italic> and <italic>Pseudomonas</italic>, whose catabolic capabilities were differentiated, were found to be responsible for the creation of specialized ecological niches that were apparently occupied by other bacterial members for survival within the consortium. Co-existing genera, <italic>Achromobacter</italic> and <italic>Cupriavidus</italic>, maintained their existence in the consortium through metabolic dependencies by utilizing hydrocarbon biotransformation products of pioneer metabolism which was confirmed through growth tests and identification of biotransformation products of the isolated strains. Pioneering <italic>Sphingobium</italic> and <italic>Pseudomona</italic>s spp. utilized relatively water insoluble hydrocarbon parent compounds and facilitated the development of a consortium community structure that resulted in creation of niches in response to diesel fuel exposure which were created through the production of more water soluble biotransformation products available to co-colonizers. That these and other organisms were still present in the consortium after multiple transfers spanning 15 years, provided evidence for these ecological niches. Member survival through occupation of these niches led to robustness of each group within the multispecies bacterial community. Overall, these results contribute to our understanding of the complex ecological relationships that may evolve during prokaryotic hydrocarbon pollutant biodegradation.


    <bold>Importance</bold> There are few metagenome studies that have explored soil consortia maintained on a complex hydrocarbon substrate after the community interrelationships were formed. A soil bacterial consortium maintained on diesel fuel was utilized as a practical model to investigate bacterial community relationships through metagenomics analyses, consortium member isolation, growth assays and metabolite identification which supported the linkage of genomic data and functionality. Two pioneering genera were responsible for biodegradation of aromatics and alkanes by initiating biotransformation and thereby created specialized niches that were populated by other members. A model that represents these relationships was constructed which contributes to our understanding of the complex ecological relationships that evolve during prokaryotic hydrocarbon pollutant biodegradation.

    File： Mori & Kanaly 2020 AEM.pdf

    DOI： 10.1128/aem.02268-20

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  • Microbial Succession Signals the Initiation of Acidification in Mining Wastewaters Reviewed

    David Camacho, Gerdhard L. Jessen, Jiro F. Mori, Simon C. Apte, Chad V. Jarolimek, Lesley A. Warren

    Mine Water and the Environment   2020.9

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1007/s10230-020-00711-9

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    Other Link： http://link.springer.com/article/10.1007/s10230-020-00711-9/fulltext.html

  • Chemical and genomic analyses of polycyclic aromatic hydrocarbon biodegradation in Sphingobium barthaii KK22 reveals divergent pathways in soil sphingomonads Reviewed International journal

    Allyn H. Maeda, Shinro Nishi, Yuji Hatada, Yukari Ohta, Kanna Misaka, Marie Kunihiro, Jiro F. Mori, Robert A. Kanaly

    International Biodeterioration & Biodegradation   151   104993 - 104993   2020.7

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.ibiod.2020.104993

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  • Putative mixotrophic nitrifying-denitrifying Gammaproteobacteria implicated in nitrogen cycling within the ammonia/oxygen transition zone of an oil sands pit lake Reviewed

    Jiro F. Mori, Lin-Xing Chen, Gerdhard L. Jessen, Sarah B. Rudderham, Joyce Margaret McBeth, Matthew B, J. Lindsay, Gregory F. Slater, Jillian F. Banfield, Lesley A. Warren

    Frontiers in Microbiology   10 ( 2435 )   2019.10

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  • Wide distribution of phage that infect freshwater SAR11 bacteria Reviewed

    Lin-Xing Chen, Yan-Lin Zhao, Katherine D. McMahon, Jiro F. Mori, Gerdhard L. Jessen, Tara Colenbrander Nelson, Lesley A. Warren, Jillian F. Banfield

    mSystems   4   2019.10

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  • The potential role of Halothiobacillus spp. in sulphur oxidation and acid generation in circum-neutral mine tailings reservoirs Reviewed

    Kelly J. Whaley-Martin, Gerdhard L. Jessen, Tara C. Nelson, Jiro F. Mori, Simon Apte, Chad Jarolimek, Lesley A. Warren

    Frontiers in Microbiology   10 ( 297 )   2019.3

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  • Physiological and ecological implications of an iron- or hydrogen-oxidizing member of the Zetaproteobacteria, Ghiorsea bivora, gen. nov., sp nov. Reviewed

    Jiro F. Mori, Jarrod J. Scott, Kevin W. Hager, Craig L. Moyer, Kirsten Kuesel, David Emerson

    The ISME Journal   11 ( 11 )   2624 - 2636   2017.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    File： ismej2017132a(1).pdf

    DOI： 10.1038/ismej.2017.132

    Web of Science

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  • Sticking together: inter-species aggregation of bacteria isolated from iron snow is controlled by chemical signaling Reviewed

    Jiro F. Mori, Nico Ueberschaar, Shipeng Lu, Rebecca E. Cooper, Georg Pohnert, Kirsten Küsel

    The ISME Journal   11   1075 - 1086   2017.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    File： ismej2016186a.pdf

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  • Schwertmannite formation at cell junctions by a new filament-forming Fe(II)-oxidizing isolate affiliated with the novel genus Acidithrix Reviewed

    Jiro F. Mori, Shipeng Lu, Matthias Haendel, Kai Uwe Totsche, Thomas R. Neu, Vasile Vlad Iancu, Nicolae Tarcea, Juergen Popp, Kirsten Kuesel

    MICROBIOLOGY-SGM   162 ( 1 )   62 - 71   2016.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    File： 62_mic000205.pdf

    DOI： 10.1099/mic.0.000205

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  • Iron encrustations on filamentous algae colonized by Gallionella-related bacteria in a metal-polluted freshwater stream Reviewed

    J. F. Mori, T. R. Neu, S. Lu, M. Haendel, K. U. Totsche, K. Kuesel

    BIOGEOSCIENCES   12 ( 18 )   5277 - 5289   2015

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    Language：English   Publishing type：Research paper (scientific journal)  

    File： bg-12-5277-2015.pdf

    DOI： 10.5194/bg-12-5277-2015

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Presentations

  • Community formation of Sphingobium-Achromobacter within a petroleum-degrading bacterial consortium

    Mana Sato, Robert A. Kanaly, Jiro F. Mori

    JSBBA 2026 Annual Meeting  2026.3 

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    Event date： 2026.3

    Presentation type：Oral presentation (general)  

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  • Pioneer and Follower Bacteria that Constitute a Petroleum-Biodegrading Microecosystem

    Jiro F. Mori, Miharu Sakai, Robert A. Kanaly

    The 35th Japanese Symposium on Microbial Ecology (JSME)  2022.11 

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    Event date： 2022.10 - 2022.11

    Presentation type：Oral presentation (general)  

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  • Isolation of a Novel Freshwater Manganese-Oxidizing Periconia Fungus and Evaluation of Its Water Purification Potential

    Shihori Tsushima, Yuma Nishi, Ryo Suzuki, Masaru Tachibana, Robert A. Kanaly, Jiro F. Mori

    The 35th Japanese Symposium on Microbial Ecology (JSME)  2022.11 

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    Event date： 2022.10 - 2022.11

    Presentation type：Poster presentation  

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  • Inconspicuous but indispensable: Phenanthrene biodegradation by Sagittula that represented a minor population in a phenanthrene-enriched marine bacterial consortium

    Jiro F. Mori, Mayuko Abe, Go Kayama, Robert A. Kanaly

    The 36th Asian Symposium on Microbial Ecology (ASME)  2023.11 

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    Presentation type：Oral presentation (general)  

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  • Identification of a putative novel polycyclic aromatic hydrocarbon-biodegrading gene cluster shared among marine Roseobacteraceae

    Jiro F. Mori, Mayuko Abe, Robert A. Kanaly

    The 37th Japanese Symposium on Microbial Ecology (JSME)  2024.10 

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    Presentation type：Oral presentation (general)  

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  • Insights into the biodegradation mechanism of environmental pollutants in Pseudomonas migulae under cold stress

    Hiroki Yanagita, Robert A. Kanaly, Jiro F. Mori

    The 37th Japanese Symposium on Microbial Ecology (JSME)  2024.10 

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    Presentation type：Poster presentation  

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  • A putative novel PAH-degrading gene cluster discovered on a plasmid of the marine bacterial genus Sagittula

    Mayuko Abe, Go Kayama, Robert A. Kanaly, Jiro F. Mori

    The 36th Japanese Symposium on Microbial Ecology (JSME)  2023.11 

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    Presentation type：Poster presentation  

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  • Sticking together: Inter-species aggregation of bacteria isolated from ison snow is controlled by chemical signaling

    Jiro F. Mori

    15th Symposium on remediation  2016.9 

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    Presentation type：Oral presentation (general)  

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  • Unique algae bacteria mineral assemblages in a highly metal-contaminated stream

    Jiro F. Mori

    92nd Annual Meeting Deutsche Mineralogische Gesselschaft (DMG)  2014.9 

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    Presentation type：Oral presentation (general)  

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  • Unique algae bacteria mineral assemblages in a highly metal-contaminated stream International conference

    Jiro F. Mori

    15th International Symposium on Microbial Ecology (ISME)  2014.8 

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    Language：English   Presentation type：Poster presentation  

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  • Chemical communication between bacteria isolated from iron-rich lake aggregates (‘iron snow’)

    Jiro F. Mori

    5th International Student Conference on Microbial Communication (MiCom)  2015.3 

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    Presentation type：Oral presentation (general)  

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  • Unique algae bacteria mineral assemblages in a highly metal-contaminated stream

    Jiro F. Mori

    13th Symposium on remediation  2014.9 

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  • Chemical communication between bacteria isolated from iron-rich lake aggregates (‘iron snow’).

    Jiro F. Mori

    Gordon Research Conference on Applied & Environmental Microbiology  2015.7 

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    Language：English   Presentation type：Poster presentation  

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  • Sticking together: Inter-species aggregation of bacteria isolated from iron snow is controlled by chemical signaling. International conference

    Jiro F. Mori

    16th International Symposium on Microbial Ecology (ISME)  2016.8 

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    Language：English   Presentation type：Poster presentation  

    File： Mori ISME16 Final.pdf

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  • Sticking together: Inter-species aggregation of bacteria isolated from iron snow is controlled by chemical signaling. International conference

    Jiro F. Mori

    Goldschmidt 2016  2016.6 

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  • Mapping of the allelochemical induced cell aggregation of key bacteria found in pelagic iron-rich aggregates

    Jiro F. Mori

    Annual Conference 2016 of the Association for General and Applied Microbiology (VAAM)  2016.3 

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    Presentation type：Poster presentation  

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  • Chemical communication between bacteria isolated from iron-rich lake aggregates (‘iron snow’)

    Jiro F. Mori

    Gordon Research Seminar on Applied & Environmental Microbiology  2015.7 

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    Presentation type：Poster presentation  

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  • Exploration of Pioneer Microorganisms that Initiate Petroleum Degradation: A Coastal Seawater Microbial Community as a Model

    Go Kayama, Robert A. Kanaly, Jiro F. Mori

    The 34th Japanese Symposium on Microbial Ecology (JSME)  2021.10 

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  • The oil-eating gangs: Metagenomics revealed the multi-species oil hydrocarbon-degrading soil bacterial consortium evolved in the lab-scale enrichment

    Jiro F. Mori, Yuna Tomiyama, Robert A. Kanaly

    The 33rd Japanese Symposium on Microbial Ecology (JSME)  2019.9 

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    Presentation type：Oral presentation (general)  

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  • Elusive microbial players in ammonia metabolism revealed through combined genomic and geochemical surveys from a manmade pit lake International conference

    Jiro F. Mori

    17th International Symposium on Microbial Ecology (ISME)  2018.8 

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    Language：English   Presentation type：Poster presentation  

    File： ISME 2018 poster JM_final.pdf

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  • Isolation of a Novel Marine Bacterium within Stutzerimonas Genus that Biodegrades PET

    Kayoko Harada, Robert A. Kanaly, Jiro F. Mori

    Annual Meeting of the Japan Socierty for Environmental Biotechnology  2025.7 

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  • Interaction Between Sphingobium and Achromobacter Coexisting in an Oil-degrading Soil Bacterial Consortium

    Mana Sato, Robert A. Kanaly, Jiro F. Mori

    Annual Meeting of the Japan Socierty for Environmental Biotechnology  2025.7 

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  • Insights into the mechanisms of PET biodegradation and assimilation in marine Stutzerimonas bacteria

    Kayoko Harada, Robert A. Kanaly, Jiro F. Mori

    The 37th Japanese Symposium on Microbial Ecology (JSME)  2025.9 

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  • The pioneer oil-degrading bacterium Sphingobium promotes the colonization and growth of the coexisting follower bacterium Achromobacter

    Mana Sato, Robert A. Kanaly, Jiro F. Mori

    The 38th Japanese Symposium on Microbial Ecology (JSME)  2025.9 

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Awards

  • Encourgamement Award

    2026.3   Yokohama City University  

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  • The ISME16 Travel Award

    2016.8   International Society for Microbial Ecology (ISME)   Sticking together: Inter-species aggregation of bacteria isolated from iron snow is controlled by chemical signaling.

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Research Projects

  • 海洋plastisphereに共存する異種細菌による協調的なPET生分解機構の理解

    Grant number：25K08898  2025.4 - 2028.3

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    守 次朗

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    Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）

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  • Development of a Co-Culture System of Heterologous Marine Bacteria for Complete Biodegradation of Polyethylene Terephthalate

    2025.1

    Hokuto Foundation for Bioscience 

    Jiro F. Mori

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    Authorship：Principal investigator 

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  • 生体触媒による重質油改質に向けた異種細菌の協調的なアスファルテン生分解機構の理解

    Grant number：23K05013  2023.4 - 2026.3

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    Robert Kanaly, 守 次朗

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    Grant amount：\4680000 （ Direct Cost: \3600000 、 Indirect Cost：\1080000 ）

    Determined the biotransformation capabilities of Sphingobium bacterium when it was exposed to different polyalkyl chain-alkylated monoaromatic and polycyclic aromatic hydrocarbons (PAHs) and constructed biotransformation pathways for their biodegradation by comprehensive liquid chromatography electrospray ionization tandem mass spectrometry.
    <BR>
    Cooperative biodegradation of a model asphaltene long-chain PAH was investigated by a compartmentalized approach using bacteria belonging to the genera Pseudomonas and Sphingobium. Pseudomonas reduced the size (and molar mass) of 1-dodecylnaphthalene through subterminal alkyl chain cutting resulting in shorter alkyl chain polyaromatics that were further biotransformed by Sphingobium to ultimately produce aromatic ring-opened chain-shortened compounds.

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  • 多環芳香族炭化水素を生分解するパイオニア微生物と“脇役”たちの共存機構の解明

    Grant number：22K14813  2022.4 - 2025.3

    日本学術振興会  科学研究費助成事業  若手研究

    守 次朗

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    Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）

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  • Who "triggers" oil degradation?: Investigation of the key petroleum hydrocarbon-degrading microbial species by using BONCAT technique

    Grant number：19K15738  2019.4 - 2022.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Early-Career Scientists

    Mori Jiro

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    Grant amount：\4030000 （ Direct Cost: \3100000 、 Indirect Cost：\930000 ）

    The coexistence and cooperative activities of multiple microbial groups are required to completely biodegrade the complex mixture of petroleum hydrocarbons derived from the oil pollutant. This project aimed to identify the pioneering bacterial taxa which "triggers" the oil pollutant biodegradation, by using a laboratory-maintained diesel fuel-degrading soil bacterial consortium as a unique microecosystem model.
    Through detailed (meta)genomic analyses and growth assays of the main bacterial members in the consortium, two bacterial genera, Sphingobium and Pseudomonas, were identified to be the pioneering players that were responsible for the biodegradation of aromatic hydrocarbons and alkanes, respectively.
    Seven research articles that summarized the research achievements of this project have been published in international journals.

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  • ”微・微生物”の探索:横浜の海から展開する超微小微生物の生態研究の最前線

    2019

    横浜学術教育振興財団 研究助成金 

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Teaching Experience

  • バイオプロダクト科学特論Ⅲ

    2025 Institution：Yokohama City University

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  • バイオプロダクト科学講究Ⅲ

    2025 Institution：Yokohama City University

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  • 生命環境システム科学特別講義Ⅰ

    2025 Institution：Yokohama City University

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  • 生命環境システム科学概説Ⅱ

    2025 Institution：Yokohama City University

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  • 自然科学実験Ⅰb

    2019 Institution：Yokohama City University

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  • 自然科学実験Ⅱb

    2019 Institution：Yokohama City University

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  • 基礎生物学実験

    2019 Institution：Yokohama City University

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  • 生体解析実習

    2019 Institution：Yokohama City University

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