Membrane proteins involved in pollen-pistil interactions.
Self-incompatibility (SI) is a widespread mechanism in angiosperms which prevents self-fertilization. This mechanism relies on cell-cell interactions between pollen and pistil. Among the different SI systems that have been reported, two have been particularly investigated: the gametophytic system of Solanaceae and the sporophytic system of Brassicaceae. In these two families, although the molecular bases of SI response are different, secreted and/or membrane-anchored proteins are required for self-pollen rejection. Interestingly, these proteins exhibit two functions: recognition and a catalytic activity. In this review article, we present recent advances which permit a better understanding of how these proteins control the male/female recognition event associated with the SI response.
Giranton
J L
JL
Reproduction et Développement des Plantes, UMR 5667 CNRS-INRA-ENSL-UCBL, Ecole Normale Supérieure de Lyon, France.
Passelègue
E
E
Dumas
C
C
Cock
J M
JM
Gaude
T
T
D000818:Animals; D006801:Humans; D008565:Membrane Proteins / Q000378:metabolism*; D010940:Plant Proteins / Q000378:metabolism*; D018514:Plant Structures / Q000502:physiology; D011058:Pollen / Q000502:physiology*; D012098:Reproduction / Q000502:physiology
D008565:Membrane Proteins; D010940:Plant Proteins