Tetraose steroidal glycoalkaloids from potato provide resistance against Alternaria solani and Colorado potato beetle.

ABSTRACT: Plants with innate disease and pest resistance can contribute to more sustainable agriculture. Natural defence compounds produced by plants have the potential to provide a general protective effect against pathogens and pests, but they are not a primary target in resistance breeding. Here, we identified a wild relative of potato, Solanum commersonii, that provides us with unique insight in the role of glycoalkaloids in plant immunity. We cloned two atypical resistance genes that provide resistance to Alternaria solani and Colorado potato beetle through the production of tetraose steroidal glycoalkaloids (SGA). Moreover, we provide in vitro evidence to show that these compounds have potential against a range of different (potato pathogenic) fungi. This research links structura

SUBMITTER: Wolters PJ 

PROVIDER: S-EPMC10522338 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature