The long-chain fatty acids of 4 Saccharopolyspora hirsuta strains were examined as their methyl and picolinyl esters using gas liquid chromatography (GLC) and GLC-mass spectrometry (GLC-MS). All the strains had similar fatty acid profiles composed mainly of isoanteiso-, and 10-methyl-branched components. Three new substituted 10-methyl-branched fatty acids were also detected and the major component identified as 10,15-dimethylhexadecanoic acid. The implications of these data for Saccharopolyspora systematics are discussed.
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T. Martin Embley (1987) studied this question.