NEW EXTRACELLULAR FATTY-ACIDS IN CULTURE FILTRATES OF SPOROTHRIX FLOCCULOSA AND S-RUGULOSA

Two new and rare unsaturated, extracellular fatty acids were identified in the culture filtrates of the biocontrol fungi, Sporothrix flocculosa and S. rugulosa. 16-Methyl-9E-nonadecenoic acid (1) and (Z,Z)-10,14-eicosadienoic acid (2) were characterized on the basis of infrared (IR) and nuclear magnetic resonance spectra (C-13 acid N-1 NMR), and gas chromatographic - mass spectrometric data (GC-MS). The structure of compounds 1 and 2 was confirmed by oxidative degradation to the known standards, dimethyl azelate, dimethyl succinate, dimethyl sebacate, and methyl caproate.