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Cell wall acyl-lipids, proteins and polysaccharides in mature and germinated olive pollen.

Proteins, acyl-lipids and polysaccharides from cell walls of mature and germinated olive pollen were studied. In general, hemicelluloses are the most abundant polysaccharides, arabinose in mature and glucose in germinated pollen being the main components of these macromolecules. Protein content and its amino acid composition are very similar in walls from mature and germinated pollen, these compounds showing a weak acid character. Free-fatty acids are the most abundant lipid molecules in mature and germinated pollen walls and a decrease in acyl-lipids, especially in polar lipids, as well as a higher unsaturation of their fatty acid components are observed after germination.