- 著者
- Yusaku Noda Ryohei Sugita Atsushi Hirose Naoki Kawachi Keitaro Tanoi Jun Furukawa Ken Naito
- 出版者
- Japanese Society of Breeding
- 雑誌
- Breeding Science (ISSN:13447610)
- 巻号頁・発行日
- vol.72, no.4, pp.326-331, 2022 (Released:2022-11-05)
- 参考文献数
- 16
- 被引用文献数
- 6
Wild species in the genus Vigna are a great resource of tolerance to various stresses including salinity. We have previously screened the genetic resources of the genus Vigna and identified several accessions that have independently evolved salt tolerance. However, many aspects of such tolerance have remained unknown. Thus, we used autoradiography with radioactive sodium (22Na+) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to visualize and compare Na+ allocation in Vigna angularis (Willd.) Ohwi & H.Ohashi (azuki bean), Vigna nakashimae (Ohwi) Ohwi & H.Ohashi, Vigna riukiuensis (Ohwi) Ohwi & H.Ohashi, Vigna luteola (Jacq.) Benth. and Vigna marina (Burm.) Merr.. The results indicated: 1) Tolerant accessions suppress Na+ accumulation compared to azuki bean. 2) V. nakashimae and V. marina does so by accumulating higher amount of K+, whereas V. riukiuensis and V. luteola does so by other mechanisms. 3) V. luteola avoids salt-shedding by allocating excess Na+ to newly expanded leaves. As the mechanisms of the tolerant species were different, they could be piled up in a single crop via classical breeding or by genetic engineering or genome editing.
- 著者
- Yusaku Noda Ryohei Sugita Atsushi Hirose Naoki Kawachi Keitaro Tanoi Jun Furukawa Ken Naito
- 出版者
- Japanese Society of Breeding
- 雑誌
- Breeding Science (ISSN:13447610)
- 巻号頁・発行日
- pp.22012, (Released:2022-08-30)
- 被引用文献数
- 6
Wild species in the genus Vigna are a great resource of tolerance to various stresses including salinity. We have previously screened the genetic resources of the genus Vigna and identified several accessions that have independently evolved salt tolerance. However, many aspects of such tolerance have remained unknown. Thus, we used autoradiography with radioactive sodium (22Na+) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to visualize and compare Na+ allocation in Vigna angularis (Willd.) Ohwi & H.Ohashi (azuki bean), Vigna nakashimae (Ohwi) Ohwi & H.Ohashi, Vigna riukiuensis (Ohwi) Ohwi & H.Ohashi, Vigna luteola (Jacq.) Benth. and Vigna marina (Burm.) Merr.. The results indicated: 1) Tolerant accessions suppress Na+ accumulation compared to azuki bean. 2) V. nakashimae and V. marina does so by accumulating higher amount of K+, whereas V. riukiuensis and V. luteola does so by other mechanisms. 3) V. luteola avoids salt-shedding by allocating excess Na+ to newly expanded leaves. As the mechanisms of the tolerant species were different, they could be piled up in a single crop via classical breeding or by genetic engineering or genome editing.
- 著者
- Masanori TAMAOKI Tohru YABE Jun FURUKAWA Mirai WATANABE Kosuke IKEDA Izumi YASUTANI Toru NISHIZAWA
- 出版者
- 日本生物環境工学会
- 雑誌
- Environmental Control in Biology (ISSN:1880554X)
- 巻号頁・発行日
- vol.54, no.1, pp.65-69, 2016 (Released:2016-01-29)
- 参考文献数
- 24
- 被引用文献数
- 10
Sixteen plant species were tested for their potential to remove radioactive cesium from contaminated soil with the Fukushima Daiichi nuclear disaster. There was a large difference of transfer factor (TF) of radiocesium (137Cs) from the soil to plants. Among the examined plants, Hollyhock belonging to Malvaceae showed the highest TF but the efficiency of phytoremediation, such as total 137Cs absorption of a plant or 137Cs removal from unit area, was not proportionally high. According to the evaluation criteria (uptake of 137Cs per plant and/or area), Kochia was shown to be the best plant species among 16 plants investigated here. Analysis of correlation showed that there was positive relationship between the total 137Cs absorption and plant biomass, and contribution rate of plant biomass in total 137Cs uptake by plant was scored to be 91.3%. These results indicate that selection of plant species that shows high biomass on site is important for 137Cs-targeted phytoremediation rather than the plants’ ability in 137Cs-uptake. On the other hand, our results also suggested that the TF value should be considered in order to evaluate the plant ability for 137Cs-targeted phytoremediation. From this point of view, the present study suggests that field-grown Kochia could be used as a potential candidate plant for phytoremediation of 137Cs from soil.