SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomato
Salinity tolerance is an important physiological index for crop breeding. Roots are typically the first plant tissue to withstand salt stress. In this study, we found that the tomato (Solanum lycopersicum) trehalose-6-phosphate phosphatase (SlTPP4) gene is induced by abscisic acid (ABA) and salt, an...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311923002307 |
| _version_ | 1797744051932364800 |
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| author | Dan DU Xin HU Xiao-mei SONG Xiao-jiao XIA Zhen-yu SUN Min LANG Yang-lu PAN Yu ZHENG Yu PAN |
| author_facet | Dan DU Xin HU Xiao-mei SONG Xiao-jiao XIA Zhen-yu SUN Min LANG Yang-lu PAN Yu ZHENG Yu PAN |
| author_sort | Dan DU |
| collection | DOAJ |
| description | Salinity tolerance is an important physiological index for crop breeding. Roots are typically the first plant tissue to withstand salt stress. In this study, we found that the tomato (Solanum lycopersicum) trehalose-6-phosphate phosphatase (SlTPP4) gene is induced by abscisic acid (ABA) and salt, and is mainly expressed in roots. Overexpression of SlTPP4 in tomato enhanced tolerance to salt stress, resulting in better growth performance. Under saline conditions, SlTPP4 overexpression plants demonstrated enhanced sucrose metabolism, as well as increased expression of genes related to salt tolerance. At the same time, expression of genes related to ABA biosynthesis and signal transduction was enhanced or altered, respectively. In-depth exploration demonstrated that SlTPP4 enhances Casparian band development in roots to restrict the intake of Na+. Our study thus clarifies the mechanism of SlTPP4-mediated salt tolerance, which will be of great importance for the breeding of salt-tolerant tomato crops. |
| first_indexed | 2024-03-12T15:04:11Z |
| format | Article |
| id | doaj.art-36de6c4628a742d39d01387ec3829e70 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-03-12T15:04:11Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
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| series | Journal of Integrative Agriculture |
| spelling | doaj.art-36de6c4628a742d39d01387ec3829e702023-08-13T04:53:35ZengElsevierJournal of Integrative Agriculture2095-31192023-08-0122823842396SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomatoDan DU0Xin HU1Xiao-mei SONG2Xiao-jiao XIA3Zhen-yu SUN4Min LANG5Yang-lu PAN6Yu ZHENG7Yu PAN8Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.ChinaKey Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.ChinaKey Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.ChinaKey Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.ChinaKey Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.ChinaKey Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.ChinaKey Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.ChinaKey Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.China; Chongqing Vocational Institute of Engineering, Chongqing 402260, P.R.China; Correspondence ZHENG Yu, Tel: +86-23-61065440Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education/College of Horticulture and Landscape Architecture/Academy of Agricultural Sciences, Southwest University, Chongqing 400715, P.R.China; Correspondence PAN Yu, Tel: +86-23-68250227Salinity tolerance is an important physiological index for crop breeding. Roots are typically the first plant tissue to withstand salt stress. In this study, we found that the tomato (Solanum lycopersicum) trehalose-6-phosphate phosphatase (SlTPP4) gene is induced by abscisic acid (ABA) and salt, and is mainly expressed in roots. Overexpression of SlTPP4 in tomato enhanced tolerance to salt stress, resulting in better growth performance. Under saline conditions, SlTPP4 overexpression plants demonstrated enhanced sucrose metabolism, as well as increased expression of genes related to salt tolerance. At the same time, expression of genes related to ABA biosynthesis and signal transduction was enhanced or altered, respectively. In-depth exploration demonstrated that SlTPP4 enhances Casparian band development in roots to restrict the intake of Na+. Our study thus clarifies the mechanism of SlTPP4-mediated salt tolerance, which will be of great importance for the breeding of salt-tolerant tomato crops.http://www.sciencedirect.com/science/article/pii/S2095311923002307trehalose-6-phosphate phosphatase (TPP)salt tolerancerootABAtomato (Solanum lycopersicum) |
| spellingShingle | Dan DU Xin HU Xiao-mei SONG Xiao-jiao XIA Zhen-yu SUN Min LANG Yang-lu PAN Yu ZHENG Yu PAN SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomato Journal of Integrative Agriculture trehalose-6-phosphate phosphatase (TPP) salt tolerance root ABA tomato (Solanum lycopersicum) |
| title | SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomato |
| title_full | SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomato |
| title_fullStr | SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomato |
| title_full_unstemmed | SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomato |
| title_short | SlTPP4 participates in ABA-mediated salt tolerance by enhancing root architecture in tomato |
| title_sort | sltpp4 participates in aba mediated salt tolerance by enhancing root architecture in tomato |
| topic | trehalose-6-phosphate phosphatase (TPP) salt tolerance root ABA tomato (Solanum lycopersicum) |
| url | http://www.sciencedirect.com/science/article/pii/S2095311923002307 |
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