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Auffällige ER-Konfigurationen in Protein-Polysaccharidschleim-sezernierenden pflanzlichen Drüsen

Unusual ER-configurations in plant glands secreting a slime containing polysaccharides and proteins

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Abstract

In the ovary of Aptenia cordifolia and Platythyra haeckeliana placentary papillae produce a slime containing polysaccharides and proteins. These papillae show two types of conspicuous vacuoles enclosed by rough ER cisternae and complexes of concentrically arranged rough ER. The enclosed vacuoles probably play an important role in the accumulation of the polysaccharide-protein slime. In the case of storage vesicles (first vacuole type) derivates of the Golgi apparatus are enclosed by ER. In other instances (second vacuole type) ER cisternae which have lost their membrane-bound ribosomes seem to delimit protoplasmic regions free of organelles.

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Kristen, U. Auffällige ER-Konfigurationen in Protein-Polysaccharidschleim-sezernierenden pflanzlichen Drüsen. Planta 133, 161–167 (1977). https://doi.org/10.1007/BF00391915

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  • DOI: https://doi.org/10.1007/BF00391915

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