| Autor: |
W.-Y. ZHAN, Y.-C. YU, L.-X. HOU, C.-Y. LIU, F.-G. ZHAO, Y.-P. ZHANG, H.-B. YANG |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Biologia Plantarum, Vol 64, Iss 1, Pp 485-489 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1573-8264 |
| DOI: |
10.32615/bp.2020.051 |
| Popis: |
The localizations of sodium exclusion are roots and stem base, however, Na+ distribution in these localizations is unclear. Here, we used a salt-tolerant buckwheat cultivar Chuanqiao No.1 and a salt-sensitive cultivar TQ-0808 to demonstrate Na+ distribution. We found that Na+ content was highest in vacuole, the following was in cell wall or free space, and the least was in cytoplasm. Comparative analysis shows that Na+ accumulation in vacuole, cell wall, or free space of roots and stem base in 'Chuanqiao No.1' was obviously higher than in 'TQ-0808'; in contrast, Na+ accumulation in cytoplasm of 'Chuanqiao No.1' was less than in 'TQ-0808'. These results indicate that the capabilities of Na+ extrusion and Na+ compartmentalization of salt-tolerant buckwheat were obviously higher than of the salt-sensitive one, and the capabilities could effectively restrict Na+ transport to shoot. Compartmentalization of Na+ in the vacuole was the main way for Na+ exclusion of salt-tolerant buckwheat. In addition, the transcriptions of Na+/H+ antiporter 1 and salt overly sensitive 1 were remarkably higher in 'Chuanqiao No.1' than in 'TQ-0808', which is consistent with the above results. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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