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Plant Pathology Lab
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The lab explores the interaction and evolution of plants and viruses.
AboutAbout the lab
Exploring plant–virus interaction and evolution
The Plant Pathology Lab studies the interaction and evolution of cucumber mosaic virus and plants.
At the molecular level, it investigates how plants fend off viruses and what viruses do when they infect a plant without causing disease.
Another line of research combines experiments with mathematical modeling to analyze the social behavior shown by virus populations.
The lab aims to establish control technologies that target weaknesses in the viruses' social systems.
Key terms
- Resistance gene
- A gene that encodes a protein that detects a pathogen and triggers the plant's defense response
- Asymptomatic infection
- A state in which a virus has infected a host but no visible disease symptoms appear
- Mathematical modeling
- A method of expressing the behavior of a phenomenon in mathematical equations and using calculation to make predictions or test them
NewsLab news
The lab is featured on the cover of an English-language journal
A paper from the lab wins the Phytopathological Society of Japan Paper Award
ResearchResearch themes
Using cucumber mosaic virus and other viruses as study subjects, the lab studies the interaction and evolution of plants and viruses. Its themes include plant resistance genes, viruses that do not cause disease, the sociality of virus populations, and plant disease control using plasma.
*Illustrative imagePlant genes that resist viruses
The lab studies RCY1, a resistance gene of Arabidopsis thaliana. It investigates how RCY1 recognizes the viral coat protein (CP) and prevents the infection from spreading, and how the expression level of RCY1 is regulated.
*Illustrative imageHow viruses that do not cause disease function
The lab focuses on viruses that infect plants without producing symptoms, known as asymptomatic infection. Viewing the host plant, the virus, and the communities of endophytes and rhizosphere microbes together as a "super-plant organism," the lab investigates how viruses regulate plant life processes and the molecular basis of that regulation.
*Illustrative imageViral sociality and how to disrupt it
Research has revealed that virus populations inside a host may show social behavior such as cooperation, cheating, and the formation of rules. By combining experiments with mathematical modeling, the lab aims to establish control technologies that target weaknesses in this social system.
*Illustrative imagePlant disease control with atmospheric-pressure plasma
In a joint study with the Kaneko Lab at the Graduate School of Engineering, Tohoku University, the lab researches controlling plant diseases using atmospheric-pressure plasma gas and plasma-treated water, made by dissolving the plasma in water.
MembersFaculty
The Plant Pathology Lab's members consist of faculty, a visiting professor, doctoral, master's, and undergraduate students, and administrative staff.As of 2026
- ProfessorShuhei Miyashita
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Cucumber mosaic virus symptoms” William M. Brown Jr. / CC BY 3.0 us (cropped)
- Plant genes that resist viruses: “Arabidopsis thal background” Reo On / CC BY-SA 3.0 (cropped)
- How viruses that do not cause disease function: “Turnip leaves infected with turnip mosaic virus” David B. Langston, University of Georgia, Bugwood.org / CC BY 3.0 us (cropped)
- Viral sociality and how to disrupt it: “Colorized transmission electron micrograph of monkeypox virus particles (green)” National Institute of Allergy and Infectious Diseases (NIAID) / CC BY 2.0 (cropped)
- Plant disease control with atmospheric-pressure plasma: “Buse plasma à pression atmosphérique” Acxys / CC BY-SA 3.0 (cropped)
- Related lab (Crop Science Lab): “Wheat field - geograph.org.uk - 216367” Richard Webb / CC BY-SA 2.0 (cropped)
- Related lab (Animal Environmental Management Lab): “Mosquitoes in cup” Bluerasberry / CC BY-SA 3.0 (cropped)
- Related lab (Animal Functional Morphology Lab): “Cows and calves in the project dairy barn - DPLA - c909d9085531ee0ff2c67” Rothstein, Arthur / Public domain (cropped)
- Related lab (Forest Ecology Lab): “Boxwood and beech relict forest canopy, Epiphytes, Mezmay, Russia” Vyacheslav Argenberg / CC BY 4.0 (cropped)
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