Abstract
Chloroplasts play a central role in fatty acid metabolism in the leaf cell; not only do they synthesize fatty acids--and may in fact be the sole site of this synthesis--but they are also able to desaturate fatty acids. Desaturation of 18:0 to 18:1 occurs while the acyl group is esterified to ACP in the stroma; the desaturase is a soluble protein, and requires both a source of electrons--reduced ferredoxin is sufficient--and oxygen (Jacobson et al, 1974; Mckeon and Stumpf, 1982). All other fatty acid desaturation in plant cells, in both the plastid and elsewhere, appears to occur while the fatty acids are esterified to glycerolipids (Roughan and Slack, 1982). This is in stark contrast to animal systems in which fatty acids esterified to CoA are the predominant substrates for desaturation.
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© 1989 Akadémiai Kiadó, Budapest
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Andrews, J., Schmidt, H., Heinz, E. (1989). Monogalactosyldiacylglycerol Desaturation in Spinach Chloroplasts. In: Biacs, P.A., Gruiz, K., Kremmer, T. (eds) Biological Role of Plant Lipids. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1303-8_44
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DOI: https://doi.org/10.1007/978-1-4684-1303-8_44
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