title: S-locus receptor kinase signalling.
abstract: SRK (S-locus receptor kinase) is the receptor that allows stigma epidermal cells to discriminate between genetically related ('self') and genetically unrelated ('non-self') pollen in the self-incompatibility response of the Brassicaceae. SRK and its ligand, the pollen coat-localized SCR (S-locus cysteine-rich protein), are highly polymorphic, and their allele-specific interaction explains specificity in the self-incompatibility response. The present article reviews current knowledge of the role of SRK in the recognition and response phases of self-incompatibility, and highlights the new insights provided by analysis of a transgenic self-incompatible Arabidopsis thaliana model.
authors.affiliation: *Department of Plant Biology, Cornell University, 412 Mann Library Building, Ithaca, NY 14853, U.S.A.
authors.forename: June B
authors.initials: JB
authors.lastname: Nasrallah
authors.affiliation: *Department of Plant Biology, Cornell University, 412 Mann Library Building, Ithaca, NY 14853, U.S.A.
authors.forename: Mikhail E
authors.initials: ME
authors.lastname: Nasrallah
mesh_terms: D017360:Arabidopsis / Q000201:enzymology / Q000235:genetics / Q000502:physiology; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism; D018506:Gene Expression Regulation, Plant / Q000235:genetics / Q000502:physiology; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D011058:Pollen / Q000201:enzymology / Q000235:genetics / Q000502:physiology; D054817:Pollination / Q000235:genetics / Q000502:physiology; D011494:Protein Kinases / Q000235:genetics / Q000378:metabolism*
chemical_list: D029681:Arabidopsis Proteins; D010940:Plant Proteins; D011494:Protein Kinases; C079832:S-receptor kinase