Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred Seedlings
Soil salinization is a major environmental stressor that reduces the growth and yield of crops. Maintaining the balance of ions under salinity is vital for plant salt tolerance; however, little is known about the correlation between the salt tolerance of crops and the ion contents of their roots and...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-03-01
|
| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/11/7/906 |
| _version_ | 1797438069941469184 |
|---|---|
| author | Cheng-Feng Wang Guo-Liang Han Zi-Qi Qiao Yu-Xia Li Zong-Ran Yang Bao-Shan Wang |
| author_facet | Cheng-Feng Wang Guo-Liang Han Zi-Qi Qiao Yu-Xia Li Zong-Ran Yang Bao-Shan Wang |
| author_sort | Cheng-Feng Wang |
| collection | DOAJ |
| description | Soil salinization is a major environmental stressor that reduces the growth and yield of crops. Maintaining the balance of ions under salinity is vital for plant salt tolerance; however, little is known about the correlation between the salt tolerance of crops and the ion contents of their roots and shoots. Here, we investigated the poorly understood salt-tolerance mechanisms, particularly regarding ion contents (particularly Na<sup>+</sup>), in <i>Brassica napus</i> subsp. <i>napus</i> L., an agriculturally important species. Twenty <i>B. napus</i> inbred lines were randomly chosen from five salt-tolerance categories and treated with increasing concentrations of NaCl (0–200 mmol) for this work. We found that the root Na<sup>+</sup> content is the most correlated limiting factor for the salt tolerance of <i>B. napus</i>; the higher the salt tolerance, the lower the root Na<sup>+</sup> content. Correspondingly, the Ca<sup>2+</sup>/Na<sup>+</sup> and K<sup>+</sup>/Na<sup>+</sup> ratios of the roots were highly correlated with <i>B. napus</i> salt tolerance, indicating that the selective absorption ability of these ions by the roots and their translocation to the shoots play a pivotal role in this trait. These data provide a foundation for the further study of the molecular mechanisms underlying salt tolerance and for breeding salt-tolerant <i>B. napus</i> cultivars. |
| first_indexed | 2024-03-09T11:31:54Z |
| format | Article |
| id | doaj.art-ae8a7e01879c4361a7a86fab0140b38c |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T11:31:54Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-ae8a7e01879c4361a7a86fab0140b38c2023-11-30T23:50:41ZengMDPI AGPlants2223-77472022-03-0111790610.3390/plants11070906Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred SeedlingsCheng-Feng Wang0Guo-Liang Han1Zi-Qi Qiao2Yu-Xia Li3Zong-Ran Yang4Bao-Shan Wang5Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji’nan 250014, ChinaShandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji’nan 250014, ChinaShandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji’nan 250014, ChinaShandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji’nan 250014, ChinaShandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji’nan 250014, ChinaShandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji’nan 250014, ChinaSoil salinization is a major environmental stressor that reduces the growth and yield of crops. Maintaining the balance of ions under salinity is vital for plant salt tolerance; however, little is known about the correlation between the salt tolerance of crops and the ion contents of their roots and shoots. Here, we investigated the poorly understood salt-tolerance mechanisms, particularly regarding ion contents (particularly Na<sup>+</sup>), in <i>Brassica napus</i> subsp. <i>napus</i> L., an agriculturally important species. Twenty <i>B. napus</i> inbred lines were randomly chosen from five salt-tolerance categories and treated with increasing concentrations of NaCl (0–200 mmol) for this work. We found that the root Na<sup>+</sup> content is the most correlated limiting factor for the salt tolerance of <i>B. napus</i>; the higher the salt tolerance, the lower the root Na<sup>+</sup> content. Correspondingly, the Ca<sup>2+</sup>/Na<sup>+</sup> and K<sup>+</sup>/Na<sup>+</sup> ratios of the roots were highly correlated with <i>B. napus</i> salt tolerance, indicating that the selective absorption ability of these ions by the roots and their translocation to the shoots play a pivotal role in this trait. These data provide a foundation for the further study of the molecular mechanisms underlying salt tolerance and for breeding salt-tolerant <i>B. napus</i> cultivars.https://www.mdpi.com/2223-7747/11/7/906<i>Brassica napus</i> L.correlative analysisgrowthion contentsalt tolerance |
| spellingShingle | Cheng-Feng Wang Guo-Liang Han Zi-Qi Qiao Yu-Xia Li Zong-Ran Yang Bao-Shan Wang Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred Seedlings Plants <i>Brassica napus</i> L. correlative analysis growth ion content salt tolerance |
| title | Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred Seedlings |
| title_full | Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred Seedlings |
| title_fullStr | Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred Seedlings |
| title_full_unstemmed | Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred Seedlings |
| title_short | Root Na<sup>+</sup> Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of <i>Brassica napus</i> L. Inbred Seedlings |
| title_sort | root na sup sup content negatively correlated to salt tolerance determines the salt tolerance of i brassica napus i l inbred seedlings |
| topic | <i>Brassica napus</i> L. correlative analysis growth ion content salt tolerance |
| url | https://www.mdpi.com/2223-7747/11/7/906 |
| work_keys_str_mv | AT chengfengwang rootnasupsupcontentnegativelycorrelatedtosalttolerancedeterminesthesalttoleranceofibrassicanapusilinbredseedlings AT guolianghan rootnasupsupcontentnegativelycorrelatedtosalttolerancedeterminesthesalttoleranceofibrassicanapusilinbredseedlings AT ziqiqiao rootnasupsupcontentnegativelycorrelatedtosalttolerancedeterminesthesalttoleranceofibrassicanapusilinbredseedlings AT yuxiali rootnasupsupcontentnegativelycorrelatedtosalttolerancedeterminesthesalttoleranceofibrassicanapusilinbredseedlings AT zongranyang rootnasupsupcontentnegativelycorrelatedtosalttolerancedeterminesthesalttoleranceofibrassicanapusilinbredseedlings AT baoshanwang rootnasupsupcontentnegativelycorrelatedtosalttolerancedeterminesthesalttoleranceofibrassicanapusilinbredseedlings |