The heterocyst glycolipids of the cyanobacterium Cyanospira rippkae have been isolated and their structures established to be 1-(O-α-d-glucopyranosyl)-3R,27R-octacosanediol and 1-(O-α-d-glucopyranosyl)-27-keto-3R-octacosanol by spectroscopic and chemical means. The absolute configuration at the two stereogenic centres in the aglycone moiety of the former compound has been established in a single step by Mosher's method on the triol derivative. The akinetes of C. rippkae contain the same glycolipids.
cyanobacteria, Cyanospira rippkae, heterocyst glycolipids, akinetes, stereochemistry
Publication DOI: 10.1016/0031-9422(93)85526-WJournal NLM ID: 0151434Publisher: Elsevier
Institutions: Dipartimento di Fisica, Universitá di Salerno, 84081 Baronissi (SA), Italy, Istituto per la Chimica MIB, CNR, Via Toiano 6,80072 Arco Felice (NA), Italy, Centro di Studio dei Microrganismi Autotrofi, CNR, Piazzale delle Cascine 27, 50144 Firenze, Italy
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