Arachidonic and eicosapentaenoic acids in Araucariaceae, a unique feature among seed plants

Autor:	Wolff Robert L., Christie William W., Aizetmuller Kurt, Pasquier Elodie, Pedrono Frédérique, Destaillats Frédéric, Marpeau Anne M.
Jazyk:	English<br />French
Rok vydání:	2000
Předmět:	Agathis spp. acide arachidonique acide éicosapentaénoïque Araucaria spp. Araucariaceae chromatographie en phase gazeuse chromatographie d’argentation sur couche mince composition en acides gras Coniférophytes phylogénie spectrométrie de masse Oils fats and waxes TP670-699
Zdroj:	Oléagineux, Corps gras, Lipides, Vol 7, Iss 1, Pp 113-117 (2000)
Druh dokumentu:	article
ISSN:	1258-8210 1950-697X
DOI:	10.1051/ocl.2000.0113
Popis:	It is generally admitted that seed plants (spermaphytes) are unable to synthesize either arachidonic or eicosapentaenoic acids (AA and EPA), the classic essential fatty acids in animals. We give here chromatographic and spectrometric data showing that species from the primitive family Araucariaceae (gymnosperms) are able to synthesize AA and/or EPA in their seeds and leaves. Agathis robusta, in particular, contains AA and EPA in small amounts in its seeds, with no D5-unsaturated polymethylene-interrupted fatty acids (D5-UPIFA) with 18 carbon atoms, whereas Araucaria spp. contain both AA and C18 D5-UPIFA. In both species, D5-UPIFA with 20 carbon atoms are present as in all other Coniferophytes. All metabolic intermediates necessary for the biosynthesis of AA and/or EPA have been characterized in Araucariaceae seeds. The relevance of these observations is discussed with regard to the phylogeny of Coniferophytes.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/393d9eddd5ec417c9019e05bf0b4582f Zobrazit plný text záznamu View record in DOAJ