Disease Resistant Plants

摘要

The present invention relates to a plant, which is resistant to a pathogen of viral, bacterial, fungal or oomycete origin, wherein the plant has a reduced level, reduced activity or complete absence of DMR6 protein as compared to a plant that is not resistant to the said pathogen, in particular organisms of the Fungi or the phylum Oomycota. The invention further relates to a method for obtaining a plant, which is resistant to a pathogen of viral, bacterial, fungal or oomycete origin, comprising reducing the endogenous level or activity of DMR6 protein in the plant. In addition, the invention relates to the use of a DMR6 promotor for providing disease resistant plants.

主权项

1: An isolated plant which is resistant to a pathogen, wherein the plant has a reduced level or reduced activity of DMR6 protein as compared to a plant that is not resistant to said pathogen, wherein said plant is selected from the group consisting of cucumber, melon, tomato, grape, and tobacco, and
wherein when said plant is cucumber or melon and said pathogen is Pseudoperonospora cubensis, said cucumber or melon plant has a mutation in the dmr6 gene of SEQ ID NO: 66 and said plant has a reduced level or reduced activity of the DMR6 protein of SEQ ID NO: 67; wherein when said plant is tomato and said pathogen is Phytophthora infestans, said tomato plant has a mutation in the dmr6 gene of SEQ ID NO: 95 and said plant has a reduced level or reduced activity of the DMR6 protein of SEQ ID NO: 96; wherein when said plant is grape and said pathogen is Plasmopara viticola, said grape plant has a mutation in its dmr6 gene and said plant has a reduced level or reduced activity of the DMR6 protein of SEQ ID NO: 82; and wherein when said plant is tobacco and said pathogen is Pythium spp. or Phytophthora spp., said tobacco plant has a mutation in the dmr6 gene of SEQ ID NO: 97 and said plant has a reduced level or reduced activity of the DMR6 protein of SEQ ID NO: 98.