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Biocatalytic Chemistry Lab
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A lab uncovering how plant hormones are produced and how they act.
AboutAbout the lab
Tiny signaling molecules that determine plant shape and growth.
The Biocatalytic Chemistry Lab (Yamaguchi Lab) studies how plant hormones, which are trace amounts of small-molecule signaling substances that regulate plant growth and morphology, are produced in the plant body and how they act.
Based on these findings, the lab aims to develop technologies that control plant growth and morphology using plant hormone-related genes, mutants, and compounds.
Key terms
- Plant hormone
- A substance that acts in very small amounts inside a plant and regulates its growth and shape
- Gibberellin
- A plant hormone that promotes seed germination and stem elongation
- Strigolactone
- A plant hormone that controls the branching of plants
- Biosynthesis
- The production of substances inside a living organism
ResearchResearch themes
The lab studies plant hormone biosynthesis and the mechanisms of hormone perception and signal transduction.
*Illustrative imageNovel Gibberellin-Modifying Enzymes
Parts of the mechanism that regulates the amount of gibberellin, which promotes seed germination and stem elongation, remain unknown. To elucidate the whole picture, the lab is investigating the function of a new gibberellin-modifying enzyme found in rice.
*Illustrative imageStrigolactone, the Branching Hormone
Focusing on strigolactone, which was shown for the first time in the world to be a plant hormone, the lab pays attention to the genes, proteins, and compounds involved in its biosynthesis and signal transduction, and is elucidating how it works as a hormone.
*Illustrative imageSearch for New Hormone-Like Substances
The lab focuses on mutants that show shapes that known plant hormones cannot explain, and is working to identify the cause in order to discover new plant hormones.
MembersFaculty
- ProfessorShinjiro Yamaguchi
- Assistant ProfessorKiyoshi Mashiguchi
- Assistant ProfessorKengo Hayashi
- Program-Specific Assistant ProfessorSUN Rui
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: “Shaped bunches after gibberellin treatment” Miwa Steve / CC BY-SA 4.0 (cropped)
- Novel Gibberellin-Modifying Enzymes: “GA3” Lehar, Helix84 / Public domain (cropped)
- Strigolactone, the Branching Hormone: “Striga 2” Nativeplants garden / CC BY-SA 4.0 (cropped)
- Search for New Hormone-Like Substances: “Arabidopsis thaliana kz13” Krzysztof Ziarnek, Kenraiz / CC BY-SA 4.0 (cropped)
- Related lab (Atomic and Molecular Structure Lab): “XBio illustration – X-ray Crystallography” explorebiology / CC BY 4.0 (cropped)
- Related lab (Molecular Aggregation Analysis Lab): “Thin film perovskite solar cell and perovskite on silicon tandem solar cell” National Renewable Energy Laboratory / Public domain (cropped)
- Related lab (Advanced Inorganic Solid-State Chemistry Lab): “Oxygen tube and Pulsed Laser Deposition system at the background” Abdullahkepceoglu / CC BY-SA 4.0 (cropped)
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