DESCRIZIONE
The present invention relates to plant genes involved in negative regulation of resistance to plant pathogens and uses thereof. More particularly, the invention relates to plants having a defective phytosulfokine (PSK) function and exhibiting an increased resistance to plant pathogens. The invention also relates to methods for producing modified plants resistant to various diseases. Furthermore, the invention relates to plants having a defective PSK receptor (PSKR) function, and to methods of screening and identifying molecules that modulate PSKR expression or activity.