Patent ID: 8796511

Claim:
An isolated plant which is resistant to a pathogen, wherein the plant has an increased endogenous L-homoserine level as compared to a plant that is not resistant to said pathogen, wherein said plant is selected from the group consisting of potato, soybean, rice, and maize, and wherein when said plant is potato and said pathogen is Phytophthora infestans , said potato plant has a mutation in its homoserine kinase gene lowering the homoserine kinase activity of SEQ ID NO: 87 or SEQ ID NO: 90; wherein when said plant is soybean and said pathogen is Phytophthora sojae , said soybean plant has a mutation in its homoserine kinase gene lowering the homoserine kinase activity of SEQ ID NO: 94; wherein when said plant is rice and said pathogen is Sclerospora , said rice plant has a mutation in its homoserine kinase gene lowering the homoserine kinase activity of SEQ ID NO: 98; and wherein when said plant is maize and said pathogen is Peronosclerospora , said maize plant has a mutation in its homoserine kinase gene lowering the homoserine kinase activity of SEQ ID NO: 97.