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Allele-specific receptor-ligand interactions in Brassica self-incompatibility.
Kachroo, A; Schopfer, C R; Nasrallah, M E; Nasrallah, J B.
Afiliación
  • Kachroo A; Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA.
Science ; 293(5536): 1824-6, 2001 Sep 07.
Article en En | MEDLINE | ID: mdl-11546871
Genetic self-incompatibility in Brassica is determined by alleles of the transmembrane serine-threonine kinase SRK, which functions in the stigma epidermis, and of the cysteine-rich peptide SCR, which functions in pollen. Using tagged versions of SRK and SCR as well as endogenous stigma and pollen proteins, we show that SCR binds the SRK ectodomain and that this binding is allele specific. Thus, SRK and SCR function as a receptor-ligand pair in the recognition of self pollen. Specificity in the self-incompatibility response derives from allele-specific formation of SRK-SCR complexes at the pollen-stigma interface.
Asunto(s)
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Polen / Proteínas Quinasas / Brassica / Estructuras de las Plantas / Alelos Idioma: En Revista: Science Año: 2001 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Polen / Proteínas Quinasas / Brassica / Estructuras de las Plantas / Alelos Idioma: En Revista: Science Año: 2001 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos