Plant Pathology, Diseases and Immune System

R -Genes and R proteins

R- genes (resistance genes) is produced by the plant to protect the plant from microorganism like bacteria, virus, fungus, oomycete, nematode, etc. R gene is the protein that allows the recognition of specific pathogen receptors to bind with it. R genes proteins control a broad range of disease resistance responses which can further stop the pathogen growth. R genes usually give specificity to a particular strain of microorganism. An effector can change the host cellular target and the R gene can activate the defense when it recognizes the modified form of the host species.