ArticlePlant cell reports2025
The receptor-like kinase SlLRR-RLK94 as a positive regulator of tomato resistance to Phytophthora infestans.
Article in Plant cell reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- A tomato MIK2-clade receptor is involved in the perception of a Fusarium-derived elicitor.The New phytologist · 2026Article
- Advances in the roles of SCOOP peptides and the receptor-like kinase MIK2 in plant stress responses.Plant cell reports · 2026Review
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Authors and funding
9 authors.
Funding
Abstract
key messageThe receptor-like kinase SlLRR-RLK94 enhances tomato resistance to Phytophthora infestans by effecting pathogenesis-related (PR) gene expression, reactive oxygen species (ROS) homeostasis, and the phenylpropanoid biosynthesis pathway. Late blight, caused by Phytophthora infestans (P. infestans), is one of the most devastating diseases affecting tomato yield and quality. Receptor-like kinases (RLKs) are essential for plants to sense various signaling molecules and to trigger early immune responses. However, most Leucine-rich repeat receptor-like kinases (LRR-RLKs), the largest RLK subfamily, have unknown functions in tomato resistance to P. infestans. Here, we identified 209 LRR-RLK family members in tomato, and clustered them into 14 subfamilies based on phylogenetic analysis. Transcriptome analysis revealed that SlLRR-RLK94 (belonging to the XI subfamily) showed the strongest response to P. infestans infection. Using virus-induced gene silencing and overexpression in tomato, we demonstrated that SlLRR-RLK94 positively regulates tomato resistance to P. infestans. In addition, SlLRR-RLK94 also regulates the expression of PR genes, ROS-scavenging genes, and antioxidant enzyme activity. Integrated transcriptomic and metabolomic analyses suggested that SlLRR-RLK94 mediates tomato resistance to P. infestans, possibly by effecting the phenylpropanoid biosynthesis pathway. These findings establish SlLRR-RLK94 as a key factor facilitating tomato defense signaling and offer a valuable genetic basis for its potential application in crop breeding.
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