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Blue Light Induces Cultivar-Specific Metabolic Reprogramming of Bioactive Compounds in Chinese Cabbage Revealed by
Ruixing Zhang1, Zijin Wei1, Qianqian He1
1Shanxi Key Laboratory of Germplasm Resources Innovation and Utilization of Vegetable and Flower, College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China.
Physiologia Plantarum
|May 27, 2026
Summary
Blue light exposure enhances the nutritional quality of specific Chinese cabbage cultivars by boosting antioxidant capacity and accumulating beneficial compounds. This effect is cultivar-dependent and increases with longer light exposure times.
Area of Science:
- Plant Science
- Nutritional Biochemistry
- Agricultural Science
Background:
- Chinese cabbage is a vital leafy vegetable, rich in nutrients like vitamin C and antioxidants.
- Understanding factors that enhance its nutritional value is crucial for human health and agriculture.
Purpose of the Study:
- To investigate the impact of blue light on the nutritional quality of Chinese cabbage cultivars.
- To elucidate the physiological and metabolic mechanisms behind blue light-induced quality improvements.
Main Methods:
- Controlled exposure of Chinese cabbage cultivars (14S23, 15S1094, 20S530) to blue light (300 μmol m⁻² s⁻¹) for 3 or 6 hours.
- Assessed antioxidant enzyme activities (APX, GPX, GR) and total antioxidant capacity.
- Utilized widely targeted metabolomics to analyze metabolic changes.
Main Results:
- Orange-red heart cultivars (15S1094, 20S530) exhibited significantly higher antioxidant enzyme activities and total antioxidant capacity compared to the control (14S23).
- Blue light exposure, especially for 6 hours, amplified these increases in antioxidant potential.
- Metabolomics revealed significant accumulation of amino acids, alkaloids, lignans, coumarins, and lipids in the orange-red heart cultivars, correlating with enhanced nutritional quality.
Conclusions:
- Blue light effectively enhances the nutritional quality of specific Chinese cabbage cultivars through cultivar-specific metabolic reprogramming.
- The findings provide a foundation for developing sustainable strategies to improve postharvest quality in leafy vegetables using light treatments.
