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Journal Articles

Visualising spatio-temporal distributions of assimilated carbon translocation and release in root systems of leguminous plants

Yin, Y.-G.*; Suzui, Nobuo*; Kurita, Keisuke; Miyoshi, Yuta*; Unno, Yusuke*; Fujimaki, Shu*; Nakamura, Takuji*; Shinano, Takuro*; Kawachi, Naoki*

Scientific Reports (Internet), 10, p.8446_1 - 8446_11, 2020/06

https://doi.org/10.1038/s41598-020-65668-9
 Times Cited Count：10 Percentile：66.36(Multidisciplinary Sciences)

The release of rhizodeposits differs depending on the root position and is closely related to the assimilated carbon (C) supply. Therefore, quantifying the C partitioning over a short period may provide crucial information for clarifying root-soil carbon metabolism. A non-invasive method for visualising the translocation of recently assimilated C into the root system inside the rhizobox was established using $$^{11}$$CO$$_{2}$$ labelling and the positron-emitting tracer imaging system. The spatial distribution of recent $$^{11}$$C-photoassimilates translocated and released in the root system and soil were visualised for white lupin ($$Lupinus albus$$) and soybean ($$Glycine max$$). Our method enabled the quantification of the spatial C allocations in roots and soil, which may help to elucidate the relationship between C metabolism and nutrient cycling at specific locations of the root-soil system in response to environmental conditions over relatively short periods.

Oral presentation

Study on optimization of protective clothing for radiation worker under high temperature and humidity circumstances to decrease body payload of radiation work

Unno, Motoyoshi; Ebashi, Tsutomu; Kawasaki, Takashi; Tomotsune, Yusuke; Akiyama, Kiyomitsu; Ejiri, Hideo; Kobayashi, Hirohide

no journal, , 

no abstracts in English

Oral presentation

Miracle world in the soil; Rhizosphere

Yin, Y.-G.*; Suzui, Nobuo*; Kurita, Keisuke; Miyoshi, Yuta*; Unno, Yusuke*; Fujimaki, Shu*; Nakamura, Takuji*; Shinano, Takuro*; Kawachi, Naoki*

no journal, , 

no abstracts in English

Oral presentation

Development of new imaging method for visualising photosynthate translocation and release in plant root systems

Yin, Y.-G.*; Suzui, Nobuo*; Kurita, Keisuke; Miyoshi, Yuta*; Unno, Yusuke*; Fujimaki, Shu*; Nakamura, Takuji*; Shinano, Takuro*; Kawachi, Naoki*

no journal, , 

In this study, we developed a new method to visualize and evaluate the movement of $$^{11}$$C-photosynthates into the root system and 11C-rhizodeposits released in the soil coupled with positional information using the positron-emitting tracer imaging system. A newly developed rhizobox was consisted of a square nylon mesh bag containing the root system and a pair of soil boxes, and it could be distinguishing the $$^{11}$$C signal of soil from that of root. Test plants of white lupin (Lupinus albus) and soybean (Glycine max) were grown in the rhizobox, and fed $$^{11}$$CO$$_{2}$$ as a pulse. Simultaneously, the behavior of 11C-photosynthates into the root system and the distribution of $$^{11}$$C-rhizodeposits released in the rhizosphere soil were visualized.

Oral presentation

Development of plant rhizosphere imaging technique

Yin, Y.-G.*; Suzui, Nobuo*; Kurita, Keisuke; Miyoshi, Yuta*; Unno, Yusuke*; Fujimaki, Shu*; Nakamura, Takuji*; Shinano, Takuro*; Kawachi, Naoki*

no journal, , 

no abstracts in English

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