Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress
Supplementation with rare earth elements (REEs) such as lanthanum and cerium has been shown to promote plant elongation and/or increase crop yields. On the other hand, there are reports that REE supplementation of plants has no such effect. The appropriate modes for REE utilization and the underlyin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/14/2663 |
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| author | Syo Iguchi Tatsuya Tokunaga Eri Kamon Yuto Takenaka Shizuka Koshimizu Masao Watanabe Takeshi Ishimizu |
| author_facet | Syo Iguchi Tatsuya Tokunaga Eri Kamon Yuto Takenaka Shizuka Koshimizu Masao Watanabe Takeshi Ishimizu |
| author_sort | Syo Iguchi |
| collection | DOAJ |
| description | Supplementation with rare earth elements (REEs) such as lanthanum and cerium has been shown to promote plant elongation and/or increase crop yields. On the other hand, there are reports that REE supplementation of plants has no such effect. The appropriate modes for REE utilization and the underlying mechanism are not fully understood. In this study, we investigated how REE supplementation of plants under low light stress affects plant growth and gene expression. Under low light stress conditions, tomato root elongation was observed to be reduced by about half. This suppression of root elongation was found to be considerably alleviated by 20 mM lanthanum ion supplementation. This effect was plant-species-dependent and nutrient-condition-dependent. Under low light stress, the expression of the genes for phytochrome-interacting factor, which induces auxin synthesis, and several auxin-synthesis-related proteins were markedly upregulated by lanthanum ion supplementation. Thus, we speculate that REE supplementation of plants results in auxin-induced cell elongation and alleviates growth suppression under stress conditions. |
| first_indexed | 2024-03-11T00:43:09Z |
| format | Article |
| id | doaj.art-950a54bd4d2143cbb4e15c246680196b |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T00:43:09Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-950a54bd4d2143cbb4e15c246680196b2023-11-18T21:00:16ZengMDPI AGPlants2223-77472023-07-011214266310.3390/plants12142663Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light StressSyo Iguchi0Tatsuya Tokunaga1Eri Kamon2Yuto Takenaka3Shizuka Koshimizu4Masao Watanabe5Takeshi Ishimizu6College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, JapanCollege of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, JapanCollege of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, JapanCollege of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, JapanSchool of Agriculture, Meiji University, Kawasaki 214-8571, JapanGraduate School of Life Sciences, Tohoku University, Sendai 980-8577, JapanCollege of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, JapanSupplementation with rare earth elements (REEs) such as lanthanum and cerium has been shown to promote plant elongation and/or increase crop yields. On the other hand, there are reports that REE supplementation of plants has no such effect. The appropriate modes for REE utilization and the underlying mechanism are not fully understood. In this study, we investigated how REE supplementation of plants under low light stress affects plant growth and gene expression. Under low light stress conditions, tomato root elongation was observed to be reduced by about half. This suppression of root elongation was found to be considerably alleviated by 20 mM lanthanum ion supplementation. This effect was plant-species-dependent and nutrient-condition-dependent. Under low light stress, the expression of the genes for phytochrome-interacting factor, which induces auxin synthesis, and several auxin-synthesis-related proteins were markedly upregulated by lanthanum ion supplementation. Thus, we speculate that REE supplementation of plants results in auxin-induced cell elongation and alleviates growth suppression under stress conditions.https://www.mdpi.com/2223-7747/12/14/2663lanthanumlow light stressrare earth elementsroot growthtomato |
| spellingShingle | Syo Iguchi Tatsuya Tokunaga Eri Kamon Yuto Takenaka Shizuka Koshimizu Masao Watanabe Takeshi Ishimizu Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress Plants lanthanum low light stress rare earth elements root growth tomato |
| title | Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress |
| title_full | Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress |
| title_fullStr | Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress |
| title_full_unstemmed | Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress |
| title_short | Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress |
| title_sort | lanthanum supplementation alleviates tomato root growth suppression under low light stress |
| topic | lanthanum low light stress rare earth elements root growth tomato |
| url | https://www.mdpi.com/2223-7747/12/14/2663 |
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