Biotechnology Bulletin ›› 2025, Vol. 41 ›› Issue (2): 119-126.doi: 10.13560/j.cnki.biotech.bull.1985.2024-0772

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Effect of Exogenous Chlorogenic Acid Treatment on Fruit Quality of Facility Tomato

CHEN Hui-ting(), XIA Yi-nan(), YAN Wei, ZHANG Meng-fei, CHEN Zhou-mei, HOU Li-xia(), LIU Xin()   

  1. College of Life Science, Qingdao Agricultural University, Qingdao 266109
  • Received:2024-08-12 Online:2025-02-26 Published:2025-02-28
  • Contact: HOU Li-xia, LIU Xin E-mail:chuiting2000122@163.com;houlixia78@163.com;liuxin6080@126.com

Abstract:

Objective In the process of tomato cultivation, the phenomenon of uneven coloring and poor color often occurs, which leads to poor taste and difficult to sell. Chlorogenic acid (CGA) is a kind of phenolic acid widely existed in the plant kingdom. The research on the effect of chlorogenic acid (CGA) on the fruit quality of tomato has been conducted to gain a basic understanding of the mechanism on CGA's effects. Method Facility tomato 'Jingcai No. 8' (Solanum lycopersicum.) was treated with exogenous CGA, and the related fruit quality indexes were detected. The expressions of ripening related genes in tomato were detected by RT-qPCR. Result The results demonstrated that the application of CGA contributed to an increase in lycopene and carotenoid levels, a decrease in chlorophyll, and an enhancement in the coloration of tomato fruits. Additionally, it was observed that CGA application led to an increase in fruit weight and a reduction in hardness. Meanwhile, the soluble sugar and sugar-acid ratio of tomato fruits, as well as the soluble solids and vitamin C were also improved, which promoted the growth ripening, flavor and nutrient content of tomato. The measurement of the expressions of ripening-related genes illustrated that the application of CGA induced the high expression of ripening-related transcription factors and ethylene synthase genes in tomato. Conclusion It is inferred that exogenous CGA plays a role in promoting the ripening of tomato and improving its quality via regulating the ethylene synthesis process.

Key words: facility tomato, chlorogenic acid, fruit quality, ethylene