Understanding the mechanisms of resistance to tomato leaf mold: A review

Tomato leaf mold is a common disease in tomato production and severely impacts the growth, fruit quality and yield of tomato plants. Research on tomato leaf mold has a long history and has focused mainly on the differentiation of pathogen races, the structure and function of pathogen Avr gene produc...

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Bibliographic Details
Published in:Horticultural plant journal 2022-11, Vol.8 (6), p.667-675
Main Authors: Zhao, Tingting, Pei, Tong, Jiang, Jingbin, Yang, Huanhuan, Zhang, He, Li, Jingfu, Xu, Xiangyang
Format: Article
Language:English
Subjects:
Cf genes
Cf/Avr interactions
Disease resistance
fruit quality
horticultural crops
immunity
leaves
pathogen-associated molecular patterns
pathogens
Tomato leaf mold
tomatoes
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Summary:Tomato leaf mold is a common disease in tomato production and severely impacts the growth, fruit quality and yield of tomato plants. Research on tomato leaf mold has a long history and has focused mainly on the differentiation of pathogen races, the structure and function of pathogen Avr gene products, the cloning of Cf resistance genes and the analysis of disease resistance mechanisms. Interactions between Cf and Avr are in accordance with the "gene-for-gene" hypothesis and typical Cf/Avr interactions are part of effector-triggered immunity (ETI). However, an increasing number of studies have proven that pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) is involved in the disease resistance response system mediated by Cf genes. In addition, different Cf genes have both similar and different roles in the disease resistance response, indicating that the disease resistance mechanism of Cf genes is complex. In this paper, progress in tomato leaf mold research was reviewed, and the regulatory mechanism underlying the Cf-mediated disease resistance response was thoroughly explored. We hope this summary will lay a foundation for research on tomato leaf mold disease resistance mechanisms and is applicable to breeding for disease resistance.
ISSN:2468-0141
2468-0141
DOI:10.1016/j.hpj.2022.04.008