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Horticultural Science Lab
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The horticulture lab designs flowers, vegetables, and fruits through the way genes work.
AboutAbout the lab
Designing flowers, vegetables, and fruits through genes
The Horticultural Science Lab studies the gene functions that determine the color, shape, taste, and quality of flowers, vegetables, and fruits.
Its approach is that once gene functions are clarified and made to work as intended, color, shape, and size can be designed, and taste and quality can be controlled.
The lab also works on molecular breeding, such as genome editing and genetic modification, and on component analysis by mass spectrometry.
Key terms
- Omics
- A research approach that comprehensively examines genes, mRNAs, proteins, metabolism, and traits
- Mass spectrometry
- A technique for distinguishing and accurately analyzing metabolite molecules. LC-MS and GC-MS are commonly used
- Genome editing
- A technology for rewriting the sequence of a targeted gene. It spread rapidly with the advent of CRISPR/Cas9
NewsLab news
A doctoral student received the Young Researcher Excellent Presentation Award at the meeting of the Japanese Society for Horticultural Science
Opened a horticultural science lab at Nagoya University Global Campus Singapore
A doctoral student received the Excellent Poster Presentation Award at the Young Researchers' Meeting on Plant Physiology
A doctoral student received the Annual Best Paper Award of the Japanese Society for Horticultural Science
Established a technique for simple and rapid analysis of components in agricultural products (press release)
ResearchResearch themes
To improve the productivity and quality of horticultural crops (fruit trees, vegetables, and ornamental plants), the lab conducts research using methods from physiology, biochemistry, and molecular biology, as well as biotechnology. In particular, it studies fruit growth and substance accumulation, and the creation of ornamental plants with new traits.
*Illustrative imageOmics analysis of horticultural crops
The lab comprehensively examines the genes, mRNAs, proteins, and metabolism that are key to the shape, color, taste, aroma, and functional properties of vegetables, fruits, and flowers. Based on this information, it works on the molecular breeding of horticultural crops.
*Illustrative imageRapid component analysis by mass spectrometry
Using APCDI-MS, which directly analyzes by mass spectrometry the aroma compounds volatilized from a sample, and PESI-MS, which analyzes a sample within minutes by piercing it with an ultrafine needle, the lab analyzes the components of plants and insects quickly and easily.
*Illustrative imageNepetalactol in silvervine
The lab studies nepetalactol, the compound responsible for cats' response to silvervine. It aims to clarify how plants of the genus Actinidia synthesize, accumulate, and release it, and what physiological significance this accumulation has for silvervine.
*Illustrative imageGenome-wide analysis of horticultural crops
In tomato, grape, morning glory, and other crops, the lab organizes and annotates information on gene families of transporters and transcription factors, providing the foundational information needed for breeding and physiological research.
MembersFaculty
The members of the Horticultural Science Lab consist of faculty, doctoral, master's, and undergraduate students, special research students, a lab administrative staff member, and technical assistants.As of 2026
- ProfessorKatsuhiro Katsuhiro
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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: “Horticulture worker” Slience Suzuka / CC BY-SA 4.0 (cropped)
- Omics analysis of horticultural crops: “Organic home-grown tomatoes - unripe to ripe” Michal Klajban / CC BY-SA 4.0 (cropped)
- Rapid component analysis by mass spectrometry: “Mass Spectrometer at NIH ( )” NIH Image Gallery from Bethesda, Maryland, USA / CC BY 2.0 (cropped)
- Nepetalactol in silvervine: “Silver vine leaves (at Mt. Yamizo, Ibaraki Prefecture, Japan) 02” 小石川人晃 / CC BY-SA 4.0 (cropped)
- Genome-wide analysis of horticultural crops: “Morning Glory Flowers 11” Yokoyama, Masana, 1833–1908 (author)Hattori, Sessai, 1807–? (artist) / Public domain (cropped)
- Related lab (Plant Pathology Lab): “Septoria lycopersici malagutii leaf spot on tomato leaf” Dr Parthasarathy Seethapathy, Tamil Nadu Agricultural University, Bugwood.org / CC BY 3.0 us (cropped)
- Related lab (Pest Control Lab): “Insect Alentejo Algarve Portugal - Macro Photography Canon - panoramio” pictures Jettcom / CC BY 3.0 (cropped)
- Related lab (Plant Physiology and Morphology Lab): “Coleus Leaf Trichomes (hairs on the leaves) via Electron Microscope” Swallowtail Garden Seeds from Santa Rosa, California / CC BY 2.0 (cropped)
- Related lab (Animal Nutrition Science Lab): “A brood of hens in a coop at Mlinza Farm 05” Zahara5555 / CC BY-SA 4.0 (cropped)
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