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Bold indicates myself or organizations for which I wrote
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Papers
Papers
Articles
Articles
Raja-Kumar R-S*, Mesny F*, Kumar Basak A*, Newfeld J, Chesneau G, Entila F, Lee T, Rigerte L, Carvajal Acevedo S, Hüttel B, Crous PW, Maciá-Vicente JG, Stewart H, Ryan M, Fakhoury AM, Sacristán S, Batisson I, Dumontet S, Elmer WH, Henzelyová J, Kruszewska JS, Nelson JM, Santelli CM, Pauly M, Molina A, Hiruma K, Hacquard S. In review. Genetic factors driving multi-host infection in a core member of the root mycobiota. Nature Microbiology. bioRxiv doi: https://doi.org/10.1101/2025.12.01.690973
Newfeld J, Bull E, Shata, E, Perc M, Tang TX and Dillon MM. 2025. Diverse genetic mechanisms enable Pseudomonas syringae to rapidly overcome effector triggered immunity. Molecular Plant Pathology 26:e70102. https://doi.org/10.1111/mpp.70102
Newfeld J, Ujimatsu R, and Hiruma K. 2025. Uncovering the host range-lifestyle relationship in the endophytic and anthracnose pathogenic genus Colletotrichum. Microorganisms 13(2):428. https://doi.org/10.3390/microorganisms13020428
Hallarn J, Bauer GB, Potter E, Wilcox H, Newfeld J, Krakowsky Y, Ravel J, and Prodger JL. 2023. Gynecological concerns and vaginal practices and exposures among transfeminine individuals who have undergone vaginoplasty. Journal of Sexual Medicine 20(11):1344-1352. https://doi.org/10.1093/jsxmed/qdad109
Reports
Reports
G20 Research Group* and Center for International Institutions Research o the Russian Presidential Academy of National Economy and Public Administration*. 2018. 2017 G20 Hamburg Summit Final Compliance Report. Munk School of Global Affairs and Public Policy. http://www.g20.utoronto.ca/compliance/2017hamburg-final/2017-g20-compliance-final.pdf
G20 Research Group* and Center for International Institutions Research of the Russian Presidential Academy of National Economy and Public Administration*. 2018. 2017 G20 Hamburg Summit Interim Compliance Report. Munk School of Global Affairs and Public Policy. http://www.g20.utoronto.ca/compliance/2017hamburg-interim/2017-g20-compliance-interim.pdf
Presentations
Presentations
Underscore indicates presenter
Oral Talks
Oral Talks
Newfeld J, Aoki S, Haba H, and Hiruma K. 2026. A candidate effector modulates virulence dependent on temperature and host phosphate status by regulating root colonization. Fungal Genetics Conference, Pacific Grove, USA. (planned & abstract accepted) [Poster & Oral talk accepted]
Newfeld J, Aoki S, Haba H, and Hiruma K. 2025. Pathogen-specific transcription factor-mediated regulation of pathogenicity depends on host phosphate starvation regulators. Phytopathological Society of Japan Kanto Division Meeting [2025 年度 ⽇本植物病理学会関東部会], Tokyo, Japan.
Best Student Presentation Award recipient
Hiruma K, Newfeld J, and Ujimatsu R. 2024. 植物感染糸状菌の病原から共生と多彩な感染戦略を紐解く [Molecular mechanisms underlying diverse fungal infection strategies along the Pathogenic-Mutualistic Continuum]. 第58回植物感染生理談話会 [58th Plant Infection Physiology Meeting], Nagoya, Japan.
Newfeld J, Haba H, and Hiruma K. 2024. What makes a pathogen? Uncovering the molecular mechanisms underlying plant-associated fungus lifestyles. 卓越コロキウム [Excellence Colloquium], University of Tokyo, Tokyo, Japan.
Newfeld J, Shata E, and Dillon MM. 2023. Rapid host adaptation of a bacterial plant pathogen to a resistant host is driven by genomic island loss. Graduate Research Consortium, University of Toronto Mississauga. Mississauga, Canada.
Ahmed A, Newfeld J, and Dillon MM. 2023. The effects of temperature variation on the virulence of Pseudomonas syringae in Arabidopsis thaliana Col-0. BIO481 Symposium, University of Toronto Mississauga. Mississauga, Canada.
Shata E, Newfeld J, and Dillon MM. 2022. Experimental evolution of a host shift event via effector modulation. BIO481 Symposium, University of Toronto Mississauga. Mississauga, Canada.
Newfeld J, Shata E, and Dillon MM. 2022. What makes a weak pathogen strong? Graduate Student Lightning Talk Seminar Series, Ecology and Evolutionary Biology Undergraduate Union. Toronto, Canada.
Posters
Posters
Newfeld J, Aoki S, Haba H, and Hiruma K. 2026. A candidate effector modulates virulence dependent on temperature and host phosphate status by regulating root colonization. Fungal Genetics Conference, Pacific Grove, USA. (planned & abstract accepted) [Poster & Oral talk accepted]
Newfeld J, Aoki S, Haba H, and Hiruma K. 2025. Pathogen-specific transcription factors regulate a secondary metabolism biosynthesis cluster necessary for pathogenicity. International Society for Molecular Plant-Microbe Interactions Congress. Cologne, Germany
Newfeld J, Haba H, and Hiruma K. 2025. Molecular determinants of Colletotrichum tofieldiae virulence on Arabidopsis thaliana are phosphate-status dependent. Annual Meeting of the Japanese Society of Plant Physiologists. Kanazawa, Japan.
Best Poster Award recipient
Newfeld J, Haba H, and Hiruma K. 2024. What makes a pathogen? Uncovering the determinants of pathogenicity in Colletotrichum tofieldiae. Plant Health. Memphis, USA.
Hallarn J, Potter E, Newfeld J, Wilcox H, Ravel J, Bauer GR, and Prodger JL. 2023. Long-term gynecological outcomes and vaginal care practices among transfeminine individuals who have undergone vaginoplasty. International Academy of Sex Researchers Annual Meeting. Montréal, Canada.
Newfeld J, Shata E, and Dillon MM. 2023. Rapid evolution of a bacterial plant pathogen to a resistant host is driven by genomic island loss. International Society for Molecular Plant-Microbe Interactions Congress. Providence, USA.
Newfeld J, Shata E, and Dillon MM. 2023. Rapid evolution of a bacterial plant pathogen to a resistant host is driven by genomic island loss. Infectious Diseases and Microbiology Research Day, Emerging and Pandemic Infectious Consotrium & MicrobeTO. Toronto, Canada.
Hallarn J, Bauer GR, Potter E, Wilcox H, Newfeld J, Krakowsky Y, Ravel J, Prodger JL. 2023. Long-term gynecological outcomes and vaginal care practices in transfeminine individuals who have undergone vaginoplasty. Department of Epidemiology and Biostatistics Research Day, University of Western Ontario. London, Canada.
Best Poster Award recipient
Newfeld J, Shata E, and Dillon MM. 2022. Rapid evolution of a bacterial plant pathogen to a resistant host is driven by effector loss. Great Lakes Annual Meeting in Evolutionary Genomics, University of Buffalo. Buffalo, USA.
Newfeld J, Shata E, and Dillon MM. 2022. Experimental dissection of bacterial plant pathogen emergence. Canadian Society for Microbiologists Annual Meeting, University of Guelph. Guelph, Canada.
Best Poster Layout Award recipient
Best Poster Award finalist
Newfeld J, Chin A, and Ruppert JLW. 2021. Compositional and functional homogenization of freshwater fish communities due to urbanization in the Greater Toronto Area. Ecology and Evolutionary Biology Undergraduate Research Fair, Department of Ecology and Evolutionary Biology, University of Toronto. Toronto, Canada.
Honourable Mention recipient
Corey A. Goldman Prize runner-up
Newfeld J*, Ravoth S*, and Weis A. Does mother matter? Investigating maternal effect in seeds surviving heat stress. 2020. Ecology and Evolutionary Biology Undergraduate Research Fair, Department of Ecology and Evolutionary Biology, University of Toronto. Toronto, Canada
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