Related Experiment Video
Updated: May 22, 2026

Luciferase Complementation Imaging Assay in Nicotiana benthamiana Leaves for Transiently Determining Protein-protein Interaction Dynamics
Published on: November 20, 2017
SlTCP14 Positively Regulates Low-Light Tolerance by Increasing Antioxidant Activity and BR Biosynthesis in Tomato
Xinyu Li1,2, Yuxuan Wang1,2, Yuan Liu1,2
1Horticulture Department, Shenyang Agricultural University, Shenyang, China.
This study reveals how SlTCP14 enhances low-light tolerance in tomato plants by boosting antioxidant activity and brassinosteroid (BR) synthesis. These findings aid in developing low-light-tolerant tomato varieties.
Area of Science:
- Plant Biology
- Molecular Genetics
- Agricultural Science
Background:
- Low-light stress significantly impacts winter greenhouse tomato cultivation.
- TCP transcription factors are crucial for plant development and stress responses, but their role in crop low-light tolerance is not fully understood.
Purpose of the Study:
- To elucidate the molecular mechanism by which SlTCP14, a class I TCP transcription factor, enhances low-light tolerance in tomatoes.
Main Methods:
- Comparative analysis of wild type, OE-SlTCP14 (overexpressing SlTCP14), and CR-SlTCP14 (SlTCP14 silencing) tomato plants.
- Assessed chlorophyll content, photosynthetic capacity, antioxidant enzyme activity, and reactive oxygen species (ROS) accumulation.
- Investigated SlTCP14 binding to the SlPER10 promoter and analyzed brassinosteroid (BR) levels.
Main Results:
- OE-SlTCP14 plants showed increased chlorophyll, photosynthesis, and antioxidant activity, with reduced ROS.
- CR-SlTCP14 plants exhibited opposite effects.
- SlTCP14 directly binds to the SlPER10 promoter.
- Brassinosteroid (BR) biosynthesis and levels were significantly elevated in OE-SlTCP14 plants.
Conclusions:
- SlTCP14 positively regulates low-light tolerance in tomatoes by enhancing antioxidant capacity and promoting BR synthesis, which may induce chlorophyll biosynthesis.
- This research provides a foundation for understanding low-light tolerance mechanisms and breeding improved tomato varieties.
More Related Videos
09:05Tomato Root Transformation Followed by Inoculation with Ralstonia Solanacearum for Straightforward Genetic Analysis of Bacterial Wilt Disease
Published on: March 11, 2020
06:41High-Throughput Identification of Resistance to Pseudomonas syringae pv. Tomato in Tomato using Seedling Flood Assay
Published on: March 10, 2020
Related Concept Videos
Photoreceptors and Plant Responses to Light
Adaptations that Reduce Water Loss
Cell Signaling in Plants
Light Acquisition
Regulation of Transpiration by Stomata