Resistance to potato late blight

Last changed: 17 October 2017

Potato late blight disease, caused by the oomycete Phytophthora infestans, is a devastating plant pathogen worldwide. Cultivars currently grown in Sweden are susceptible or relatively susceptible. Despite increased fungicide treatment, blight problems have increased in recent years. Today around 50% of the fungicides used in Swedish agriculture are used on potato crops, although potato is only a minor crop in Sweden.

A collection of blight resistance traits having different mechanisms that could be combined and exchanged in time would greatly help in dealing with the disease. In addition to finding potential markers for breeding and sources for transgenic approaches, the goals of this research programme are to target downstream resistance-gene products and define differences between PAMP-triggered immunity, effector-triggered susceptibility, effector-triggered immunity and other resistance mechanisms in potato-oomycete interactions.

This main approach is quantitative large-scale proteome and phosphoproteome studies.


Swedish Foundation for Strategic Research (SSF)


Erik Andreasson, Svante Resjö, Marit Lenman, Fredrik Levander (LU), Erland Liljeroth, Ashfaq Ali (PhD), Laith Moshib (PhD)