Preliminary characterization of carbohydrate stores from chlorarachniophytes (Division: Chlorarachniophyta)

This is the authors' abstract. We don't add key points for this paper.

SUMMARY Chlorarachniophytes are amoeboid/flagellate eukaryotes that harbor reduced green algal endosymbionts. The carbohydrate stores of chlorarachniophyte algae have been investigated using methylation analysis to determine monosaccharide composition. An appreciable quantity of long chain β‐1,3 glucan occurs in these algae. Immunogold electron microscopy using an antibody specific for (β‐1,3 glucans localized (β‐1,3 glucans within a vacuole in the host cell cytoplasm. The results suggest that photosynthate produced by the endosymbiont is stored by the host. Implications of the data for endosymbiosis are discussed.