Palmityl-ACP

All plant extracts that synthesize fatty acids from acetyl-CoA and mal-onyl-CoA are completely dependent upon the presence of ACP (Stumpf, 1977 Ohlrogge et al., 1979). In addition, its role as the thioester component of the primary elongation substrate, namely, palmityl-ACP, and the first desaturation substrate, stearyl-ACP, is well documented (Jaworski and Stumpf, 1974 Jaworski et al., 1974). Two plant ACPs have been isolated and characterized, one from avocado mesocarp and one from spinach leaves (Simon et al., 1967). The characteristics of these ACPs, as compared to prokaryotic ACPs, are given in Table I. 

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