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Plant Production Physiology Lab
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A lab that studies the mechanisms of photosynthesis to develop crops resilient to environmental stress.
AboutAbout the lab
Unraveling the mechanisms of photosynthesis to meet the future of agricultural production
The Plant Production Physiology Lab takes "photosynthesis" and "abiotic stress" as its research themes, working mainly on crops to elucidate the mechanisms of photosynthesis and dry matter production and to apply them to agricultural production.
By changing the type of photosynthesis and applying the traits of plants that grow in salt-rich environments, the lab aims to create new food crops adapted to environmental stress.
Its research combines surveys of yield and photosynthetic rate, molecular biology experiments such as gene transfer, and computational biological data analysis (bioinformatics).
Key terms
- CAM photosynthesis
- A type of photosynthesis found in plants such as cacti and aloe. The full name is Crassulacean Acid Metabolism.
- C4 photosynthesis
- A type of photosynthesis found in plants such as maize and sugarcane.
- Transcription factor
- A factor that regulates the expression level of genes. It works by binding to binding sites on the genome.
- Halophilism
- The property of ice plant whereby growth is promoted by NaCl at one quarter the concentration of seawater.
NewsLab news
View More ↗ResearchResearch themes
The lab aims to elucidate the basic mechanisms of photosynthesis and to create new food crops adapted to environmental stress, by changing the type of photosynthesis and applying the traits of plants that grow in salt-rich environments. Using plants such as ice plant, Eleocharis, and rice, it combines physiological and molecular biological methods with bioinformatics.
*Illustrative imageIntroducing CAM photosynthesis into C3 plants
By changing the photosynthetic metabolism of C3 plants to resemble that of CAM plants, the lab aims to create crops with high tolerance to environmental stress. To identify the transcription factors that regulate the expression of CAM photosynthesis-related genes, it is advancing analysis with its own method using dimethyl sulfate (DMS).
*Illustrative imageConverting photosynthesis from C3 to C4
Using Eleocharis, an amphibious plant, the lab investigates the mechanism by which C3 photosynthesis evolves into C4 photosynthesis. It uses RNA-Seq analysis to comprehensively identify genes whose expression levels differ between treatments with different growth conditions and plant hormone levels.
*Illustrative imageDeveloping high-yield rice that grows with low nitrogen
The lab aims to create high-yield rice varieties that can maintain photosynthetic capacity even with little fertilizer. It studies the epigenetic mechanisms by which the expression of genes for photosynthesis-related enzymes is adjusted according to nitrogen availability, and also conducts experiments using genome editing.
*Illustrative imageHow ice plant tolerates and thrives in salt
Ice plant shows "halophilism": its growth is promoted when treated with NaCl at one quarter the concentration of seawater. Through genome, epigenome, and transcriptome analyses, the lab aims to clarify the mechanism of halophilism and the mechanism by which the plant switches its photosynthesis type from C3 to CAM.
MembersFaculty
Members of the Plant Production Physiology Lab include faculty and students in the doctoral, master's, and undergraduate programs.As of 2023
- ProfessorSakae Agarie
- Associate ProfessorKazuyuki Saito
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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: “Ice Plant ( )” dionysia / CC BY-SA 2.0 (cropped)
- Introducing CAM photosynthesis into C3 plants: “AnanasComosusOnPlant” Markus Leupold-Löwenthal / CC BY-SA 3.0 (cropped)
- Converting photosynthesis from C3 to C4: “Sugarcane jbi gallery” Jubair Bin Iqbal / CC BY-SA 4.0 (cropped)
- Developing high-yield rice that grows with low nitrogen: “Rice Field Jiangxi” Evgeniya Soldatova / CC BY-SA 4.0 (cropped)
- How ice plant tolerates and thrives in salt: “TNY17-42 Yelagiri Heart-leaf ice plant flower Mesembryanthemum cordifolium” VasuVR / CC BY 4.0 (cropped)
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