Development and ultrastructure of the haustorium of Viscum minimum. I. The adhesive disk

摘要: The adhesive disk of the haustorium Viscum minimum Harvey develops an epithelium uni- or bi-cellular secretory trichomes. Before contact with host is obtained, trichomes secrete cutinaceous material. This secretion contains fragments lamellar cuticle proper, reticulate cuticular layer, and noncutinized part cuticularized wall, in additions to pockets granular volume product per trichome may be several times cell itself except front future intrusive organ where reduced. Formation cutin cystoliths was observed sections wall different ages within single are rich mitochondria, plastids starch, spherosomes, ribosomes, ER that associated strongly convoluted plasmalemma. A special type tubular described. Zones collapsed cells formed cortex as apex wedge-shaped emerges. cu...