Evidence for an octanoate synthase operating during the biosynthesis of piliformic acid in Poronia piliformis
作者:Helen Culceth、Jens Fuchser、Steven J Moss、Jens Nieschalk、David O'Hagan
DOI:10.1016/s0040-4039(98)00102-6
日期:1998.4
Sodium [1-C-13]-octanoate is incorporated intact into the C-8 unit of piliformic acid 1 in Poronia piliformis whereas sodium [3-C-13]-decanoate 2 is incorporated into this unit only after prior beta-oxidation to [1-C-13]-acetyl-CoA. Also 8-fluoraoctanaote 3 is utilised by P. piliformis as an intact unit to generate 9-fluoropiliformic acid 5 whereas 10-fluorodecanoate 4 is not. These results suggest that octanoate is biosynthesised de novo for secondary metabolism and is not assimilated from higher fatty acids by beta-oxidation. (C) 1998 Elsevier Science Ltd. All rights reserved.