Figure 1.

Cross-section of the cotton landrace Hopi seed showing the point of water entry during imbibition (a). Illustration of membrane lipids in the lamellar and hexagonal II configuration (b). Triphasic pattern of water uptake. The patterns of water uptake at phases I, II and III are indicated by the black dashed line. Key cellular and metabolic processes occurring during each phase of water uptake are described. Membrane reorganization from the hexagonal II to lamellar configuration occurs at phase 1 of water uptake (c).