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Pollen—stigma Interaction in the Leguminosae: the Secretory System of the Style in Trifolium pratense L.
Annals of Botany
, 1982. V. 50. No. 5. P. 635–645
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Oxford University Press · firstname.lastname@example.org
The canal that traverses the upper part of the style of Trifolium pratense is derived lysigenously. The core tissue of the very young style consists of elongated cells similar to those of the transmitting tissue of solid-style families such as the Solanaceae; as the style matures, these cells separate to form the canal, which receives secretions both from the core tissue and the inner wall cells. The early secretion of proteins into the intercellular spaces is associated with the presence of paramural bodies (lomasomes) in the adjacent cells. In the cells in the immediate vicinity of the canal, vesicles, probably derived from the Golgi system enlarge during later development and accumulate a protein-carbohydrate content, which is later passed into the cytoplasm where it forms densely packed fibrillar nodules. With the dissolution of the cell membranes, this material is passed into the canal, where it is progressively diluted by continued ingress of water until the cavity reaches its final volume.