MacLennan AP. (1970). Polysaccharides from sponges and their possible significance in cellular aggregation. In: Fry WG (ed) The Biology of the Porifera. Zoological Society of London, Academic Press London, pp 299-324.

277317

MacLennan AP

1970

Publication

Proceedings of the 1st international Sponge Conference

Available for editors   [request]

Antigenic substances serologically related to the sponge cell surface were extracted with cold 0-5 N trichloroacetic acid from seventeen species of sponge broadly represent- ative of the phylum. The yields were 0'2-0-8 %of the organic dry weight. The extracts were composed principally of heteropolysaccharide and peptide, possibly partly in combination as glycopeptide. The major sugar constituents of the carbohydrate moiety were galactose, fucose, hexosamine, and hexuronic acid. Other sugars uniformly present were glucose, mannose, rhamnose, xylose, arabinose and two unidentified sugars. The preparations were serologically species specific. ·They were examined for their possible role in specific cellular reaggregation, in the light of the various mechanisms postulated in explanation of this phenomenon. No positive role for specific polysaccharides was found. These results are discussed.

Porifera

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