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SUMMARY Gas‐liquid chromatography of algal extracts provides a sensitive assay for their content of 1‐(O‐α‐d‐glycopyranosyl)‐3, 25‐hexacosanediol, the principal glycolipid from the envelope of heterocysts of Anabaena cylindrica. Different patterns of lipids were found in the heterocysts of 5 species of Anabaena and Nostoc. Lipids with comparable chromatographic properties were detected in Gloeocapsa.
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Lorch et al. (1974) studied this question.
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