論文 - 詳細
| RRC ID | 72350 |
|---|---|
| 著者 | Wang Q, Zhang W, Xiao H, Sotta N, Beier MP, Takano J, Miwa K, Gao L, Fujiwara T. |
| タイトル | Involvement of boron transporter BOR1 in growth under low boron and high nitrate conditions in Arabidopsis thaliana. |
| ジャーナル | Physiol Plant |
| Abstract |
BOR1 is an efflux transporter of boron (B), responsible for loading B into the xylem. It has been reported that nitrate (NO3- ) concentrations significantly influence B concentrations in leaves and BOR1 mRNA accumulation in roots. Here, to unravel the interactive effects of B and NO3- on plant growth and the function of BOR1 under the combination of B and NO3- , seedling growth was analyzed in Col-0 and bor1 mutants. The growth of bor1 mutants was negatively affected by high NO3- but neither by potassium chloride (KCl) nor ammonium (NH4+ ) under low B conditions, suggesting the involvement of BOR1 in growth under high NO3- . Mutants of bor2 and bor4 did not exhibit such growth responses, suggesting that this effect was specific to BOR1 among the BORs tested. Under low B conditions, loss of the BOR1 function led to a more significant decrease in B concentrations in the presence of high NO3- compared to normal NO3- . Additionally, grafting experiments demonstrated that these effects of NO3- occurred when BOR1 is absent in roots. High NO3- treatment elevated BOR1 mRNA accumulation while the BOR1 protein accumulation was downregulated. These apparent opposite responses indicated that the transcriptional and (post-)translational regulations follow different patterns. Our work provides evidence of a novel regulation of BOR1 and another B transport system by both B and NO3- in an interactive manner. |
| 巻・号 | 171(4) |
| ページ | 703-713 |
| 公開日 | 2021-4-1 |
| DOI | 10.1111/ppl.13249 |
| PMID | 33090485 |
| MeSH | Antiporters Arabidopsis* / genetics Arabidopsis* / metabolism Arabidopsis Proteins* / genetics Arabidopsis Proteins* / metabolism Boron Nitrates Plant Roots / genetics Plant Roots / metabolism |
| IF | 4.148 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 最多言及媒体 | |
| 各媒体での言及数の合計 | 2 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| シロイヌナズナ / 植物培養細胞・遺伝子 | pss00101 |