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May 1, 2026Algal ResearchOpen Access

Structural characterisation of a fucose-rich acidic extracellular polysaccharide produced by Lindavia intermedia in New Zealand lakes

Cara A. Luiten Ian M. Sims Tracey Bell Peter T. Northcote A. Jonathan Singh Andrew R. Lewis Guilherme L. Sassaki Phil M. Novis Marc Schallenberg Simon F.R. Hinkley

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Key Points

This study aims to extract and structurally characterize a fucose-rich extracellular polysaccharide produced by Lindavia intermedia.
Isolation of extracellular polymeric substances from lake snow aggregates in Lake Wānaka, New Zealand.
Monosaccharide composition and glycosyl linkage analyses to determine variability in structure.
Purification and structural elucidation using ion-exchange chromatography and NMR spectroscopy.
Identified a high molecular weight, fucose-rich acidic polysaccharide with a specific glycosyl linkage pattern.
The attached extracellular polysaccharides showed enrichment in galactose, mannose, and glucuronic acid.
Observed O-methylation on certain sugar residues, which may contribute to the adhesive properties of lake snow.

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Implication

Characterizes structural features of fucose-rich polysaccharide in L. intermedia, highlighting ecological significance.

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Cite This Study

Luiten et al. (2026) studied this question.

synapsesocial.com/papers/69fecf16b9154b0b828761ce https://doi.org/10.1016/j.algal.2026.104735

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