SUMMARY: Mannophosphoinositides appear to be widespread among the Actinomycetales. Besides the well-known mycobacterial source, they are also present in streptomyces, microbispora (Kataoka & Nojima, 1967; Tabaud, Tisnovska & Vilkas, 1971), nocardias (Yano, Furukawa & Kusunose, 1969) and corynebacteria (Brennan & Lehane, 1971) and a related phosphorus-free mannoinositide is prominent in propionibacteria (Prottey & Ballou, 1968; Shaw & Dinglinger, 1969). Prompted by the unusual observation of a monomannophosphoinositide in Corynebacterium aquaticum (Khuller & Brennan, 1972) we have examined in more detail three species of Nocardia, and find that mannophosphoinositides, which are always of the dimannosyl type, are barely evident in Nocardia polychromogenes, whereas in N. coeliaca, they are among the most obvious phospholipids. Glucose-containing phospholipids and glycolipids are always prominent.
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Khuller et al. (1972) studied this question.
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