| Autor: |
Minato Uchiyama, Rika Fudaki, Takuya Kobayashi, Yoshiko Adachi, Yuko Ukai, Toshihiro Yoshihara, Hiroaki Shimada |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Bioscience, Biotechnology, and Biochemistry. 86:1599-1604 |
| ISSN: |
1347-6947 |
| DOI: |
10.1093/bbb/zbac152 |
| Popis: |
Cesium (Cs) in the environment is primarily absorbed by a potassium (K) transporter. OsHAK5 is a KT/HAK/KUP family K-transporter showing a high affinity for K. We created cultured rice cells whose OsHAK5 was knocked down by RNAi (named KD). In the medium containing 1.0 m m and less K, the growth of KD was significantly suppressed, suggesting that OsHAK5 greatly contributed to K absorption under limited K conditions. Although Cs suppressed the growth of KD and WT, stronger inhibition was observed on KD. Both KD and WT accumulated similar amounts of Cs when they were cultured in a medium containing Cs, whereas lower amounts of K were detected in KD. These results suggest that OsHAK5 was less involved in the absorption of Cs, although it was essential to K absorption under limited K conditions. In contrast, this means that another transporter may contribute to cesium uptake in rice. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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