Polysaccharide component in the stigmatic exudate from Lilium longiflorum |
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Authors: | Gerald O Aspinall Karl-Gunnar Rosell |
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Institution: | Department of Chemistry, York University, Downsview, Toronto, Ontario M3J 1P3, Canada |
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Abstract: | The polysaccharide component of the stigmatic exudate from Lilium longiflorum has the composition, arabinose (26%), rhamnose (6%), galactose (57%) and glucuronic acid (11%). The highly branched polysaccharide bears a striking resemblance to the acidic polysaccharide exudate from Araucaria bidwillii in belonging to the galactan group and in carrying outer chains terminated by arabinofuranose, rhamnopyranose, galactopyranose and glucuronic acid residues. Both polysaccharides contain the sequence O-rhamnopyranosyl-(1→4)-glucopyranosyluronic acid-(1→6)-galactopyranose in some of the outer chains. |
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Keywords: | Liliaceae Araucariaceae stigmatic exudate polysaccharide structure: exudate gum |
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