The enzymes from the plants Coriandrum sativum (coriander) and Hedera helix (English ivy) are involved in biosynthesis of petroselinate [(6Z)-octadec-6-enoate], which is formed by elongation of (4Z)-hexadec-4-enoate. The ivy enzyme can also act on oleoyl-[acyl-carrier protein] and palmitoleoyl-[acyl-carrier protein], generating the corresponding 4,9-diene.
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Cahoon, E.B. and Ohlrogge, J.B. Metabolic evidence for the involvement of a Δ4-palmitoyl-acyl carrier protein desaturase in petroselinic acid synthesis in coriander endosperm and transgenic tobacco cells. Plant Physiol.104 (1994) 827–837. [PMID: 12232129]
Whittle, E., Cahoon, E.B., Subrahmanyam, S. and Shanklin, J. A multifunctional acyl-acyl carrier protein desaturase from Hedera helix L. (English ivy) can synthesize 16- and 18-carbon monoene and diene products. J. Biol. Chem.280 (2005) 28169–28176. [PMID: 15939740]