Tetraose Steroidal Glycoalkaloids from Potato Provide Resistance Against and Colorado Potato Beetle
Authors
Affiliations
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, , that provides us with unique insight in the role of glycoalkaloids in plant immunity. We cloned two atypical resistance genes that provide resistance to 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 structural variation in SGAs to resistance against potato diseases and pests. Further research on the biosynthesis of plant defence compounds in different tissues, their toxicity, and the mechanisms for detoxification, can aid the effective use of such compounds to improve sustainability of our food production.
Potato steroidal glycoalkaloids: properties, biosynthesis, regulation and genetic manipulation.
Liu Y, Liu X, Li Y, Pei Y, Jaleel A, Ren M Mol Hortic. 2024; 4(1):43.
PMID: 39668379 PMC: 11639122. DOI: 10.1186/s43897-024-00118-y.
Zhang C, Chen W, Wang B, Wang Y, Li N, Li R Front Microbiol. 2024; 15:1390269.
PMID: 38686115 PMC: 11056507. DOI: 10.3389/fmicb.2024.1390269.
Gartner U, Armstrong M, Sharma S, Jones J, Blok V, Hein I Theor Appl Genet. 2024; 137(5):106.
PMID: 38622441 PMC: 11018675. DOI: 10.1007/s00122-024-04605-0.
Alternaria diseases on potato and tomato.
Schmey T, Tominello-Ramirez C, Brune C, Stam R Mol Plant Pathol. 2024; 25(3):e13435.
PMID: 38476108 PMC: 10933620. DOI: 10.1111/mpp.13435.
Tetraose steroidal glycoalkaloids from potato provide resistance against and Colorado potato beetle.
Wolters P, Wouters D, Tikunov Y, Ayilalath S, Kodde L, Strijker M Elife. 2023; 12.
PMID: 37751372 PMC: 10522338. DOI: 10.7554/eLife.87135.