2017 - 2021 Control of the penetration of toxic heavy metal elements into plant roots - Establishment of a research base for vegetation restoration
2015 - 2018 Analysis of Cs uptake mechanism in Oryza sativa by using chemical mutants.
2014 - 2018 Elucidation of molecular mechanisms, which is activated by glutathione, controlling heavy metal behaviors in plants
2012 - 2015 Development of the organic carbon fixation in soil by the soil organic matter accumulabe mechanism of volcanic ash soils.
2013 - 2015 中国東北部のソーダ質土壌の性質と植物の耐性
2011 - 2014 Elucidation of molecular mechanisms underlying inhibitory effects of glutathione on cadmium translocation and accumulation in plants
2008 - 2009 The development of direct extraction method of RNA from soils and analysis of decomposition of soil organic matter by microorganisms.
2007 - 2009 Water and material movement based on new imaging method for effective water utilization of crop samples.
2001 - 2003 金属イオンの有機物への特異吸着を利用した有機物の分解コントロールと土壌改良
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Papers (39):
Arunee Wongkaew, Shin-ichi Nakamura, Hiroki Rai, Tadashi Yokoyama, Sutkhet Nakasathien, Naoko Ohkama-Ohtsu. Phloem-specific overexpression of AtOPT6 alters glutathione, phytochelatin, and cadmium distribution in Arabidopsis thaliana. Plant Science. 2024. 348. 112238-112238
Hiroki Rai. Creation of rice mutants with low Cs uptake by chemical mutation. AGRIBIO. 2023. 7. 13. 56-60
Jun-Song Li, Nobuo Suzui, Yuji Nakai, Yon-Gen Yin, Satomi Ishii, Shu Fujimaki, Naoki Kawachi, Hiroki Rai, Takashi Matsumoto, Kanna Sato-Izawa, et al. Shoot base responds to root-applied glutathione and functions as a critical region to inhibit cadmium translocation from the roots to shoots in oilseed rape (Brassica napus). Plant Science. 2021. 305. 110822-110822