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Regional Resource Assessment Lab
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The lab looks at crops and Asian paddy fields through the microbes in roots and soil.
AboutAbout the lab
Seeing roots, soil, and the future of agriculture
The Regional Resource Assessment Lab studies crop cultivation, focusing on crop roots and the microbes in the soil.
The lab investigates the relationship between mycorrhizal fungi and crops, and the relationship between deep roots and drought tolerance.
In Asian paddy fields, the lab also uses rural surveys and interviews with farmers to study what farmers look at when choosing their techniques.
For undergraduate theses and graduate research, students can choose from overseas and domestic project research to specialized topics in crop science.
Key terms
- Mycorrhizal fungi
- Soil microbes (a type of fungi) that live in symbiosis with plant roots and exchange nutrients and water with them
- QTL
- Short for quantitative trait locus: the location on a chromosome of genes involved in traits expressed by degree, such as yield or root depth
- Ecosystem services
- The benefits that natural ecosystems provide to people, such as food, water, and biodiversity
NewsLab news
View More ↗ResearchResearch themes
The lab focuses on roots, soil, and microbes, and works on three themes: the relationship between mycorrhizal fungi and crops, roots and drought tolerance, and Asian paddy field ecosystems. The lab believes that the use of microbial inoculants has entered an era in which one must consider which microbe to use, in which soil, and for which crop.
*Illustrative imageDo Mycorrhizal Fungi Help Crops?
The lab investigates in which soils and for which crops microbial inoculants based on mycorrhizal fungi, which live in symbiosis with roots, are effective. It has found that they do not work everywhere, and that the dominant fungal species differ from crop to crop. By improving the analysis method, the lab has also made fungi that were previously undetected visible.
*Illustrative imageDoes a Deep Root System Improve Drought Tolerance?
The lab tests whether deep rooting truly confers drought tolerance, using lines carrying a root QTL, comparisons between upland rice and paddy rice, and different water management conditions. It has found that the effect of deep rooting varies with the environment and cannot be explained by root amount alone.
*Illustrative imagePaddy Field Ecosystems in Asia
Paddy fields in Asia not only produce rice but also affect biodiversity, the water cycle, and local communities. The lab studies them through rural surveys, interviews with farmers, and assessments of ecosystem services.
MembersFaculty
The members of the Regional Resource Assessment Lab consist of faculty members and doctoral, master's, and undergraduate students.
- ProfessorAkihiko KamoshitaPublications ↗
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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: “Cambodiaricefarming2” International Rice Research Institute / CC BY 2.0 (cropped)
- Do Mycorrhizal Fungi Help Crops?: “Arbuscular mycorrhiza microscope” Msturmel / Public domain (cropped)
- Does a Deep Root System Improve Drought Tolerance?: “Caranavi upland rice37 lo ( )” CIAT / CC BY-SA 2.0 (cropped)
- Paddy Field Ecosystems in Asia: “Interviewing a Cambodian rice farmer ( )” Department of Foreign Affairs and Trade / CC BY 2.0 (cropped)
- Related lab (Yamori Lab): “Chemistry of green - Flickr - Robert Couse-Baker” Robert Couse-Baker from Sacramento, California / CC BY 2.0 (cropped)
- Related lab (Plant Breeding Lab): “Fukuoka-Tsuzura Rice Terrace in an Early Summer-xl” うきは
市 / CC BY 4.0 (cropped) - Related lab (Crop Science Lab): “Red Rice Paddy field in Japan 011” Flickr user gtknj / CC BY 2.0 (cropped)
- Related lab (Crop Science Lab (Fujimoto Lab)): “Oryza sativa (Asian rice)- Root” Debdas Gain / CC BY-SA 4.0 (cropped)
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