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SlbHLH152, a bHLH transcription factor positively regulates iron homeostasis in tomato.
Li, Xiaoli; Cao, Haohao; Yu, Deshui; Xu, Kedong; Zhang, Yi; Shangguan, Xinxin; Zheng, Xiaohong; Yang, Zhongzhou; Li, Chaoqiong; Pan, Xingchen; Cui, Yiming; Zhang, Zhiqing; Han, Mengru; Zhang, Yiqing; Sun, Qimeng; Guo, Huiling; Zhao, Jingyi; Li, Lili; Li, Chengwei.
Affiliation
  • Li X; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Cao H; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Yu D; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Xu K; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Zhang Y; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Shangguan X; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Zheng X; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Yang Z; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China.
  • Li C; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Pan X; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Cui Y; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Zhang Z; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Han M; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Zhang Y; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Sun Q; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Guo H; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Zhao J; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China.
  • Li L; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China; College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, China. Electronic addre
  • Li C; Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466001, China; Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China; College of Bioengineering, Henan University of Technology, Zhengzhou 450001, China. Electronic address:
Plant Sci ; 335: 111821, 2023 Oct.
Article in En | MEDLINE | ID: mdl-37558055
ABSTRACT
The maintain of iron (Fe) homeostasis is essential for plant survival. In tomato, few transcription factors have been identified as regulators of Fe homeostasis, among which SlbHLH068 induced by iron deficiency, plays an important role. However, the upstream regulator(s) responsible for activating the expression of SlbHLH068 remain(s) unknown. In this study, the bHLH (basic helix-loop-helix) transcription factor SlbHLH152 was identified as an upstream regulator of SlbHLH068 using yeast one-hybrid screening. Deletion of SlbHLH152 led to a significant decline in Fe concentration, which was accompanied by reduced expression of Fe-deficiency-responsive genes. In contrast, SlbHLH152 overexpression plants displayed tolerance to iron deficiency, increased Fe accumulation, and elevated expression of Fe-deficiency-responsive genes. Further analysis indicated that SlbHLH152 directly activates the transcription of SlbHLH068. Taken together, our results suggest that SlbHLH152 may be involved in the regulation of iron homeostasis by directly activating the transcription of SlbHLH068 in tomato.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Solanum lycopersicum / Arabidopsis Proteins / Iron Deficiencies Type of study: Prognostic_studies Language: En Journal: Plant Sci Year: 2023 Document type: Article Affiliation country: China Publication country: IE / IRELAND / IRLANDA
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Solanum lycopersicum / Arabidopsis Proteins / Iron Deficiencies Type of study: Prognostic_studies Language: En Journal: Plant Sci Year: 2023 Document type: Article Affiliation country: China Publication country: IE / IRELAND / IRLANDA