Errouane Kheira, Doulbeau Sylvie, Vaissayre Virginie, Leblanc Olivier, Collin Myriam, Kaid-Harche Meriem, Dussert Stéphane
Laboratoire des Productions, Valorisations Végétales et Microbiennes, Département de Biotechnologie, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf, B.P. 1505, El M'Naouar, Oran 31000, Algeria; IRD, UMR DIADE, 911 Av. Agropolis, BP 64501, 34394 Montpellier, France.
IRD, UMR DIADE, 911 Av. Agropolis, BP 64501, 34394 Montpellier, France.
Food Chem. 2015 Aug 15;181:270-6. doi: 10.1016/j.foodchem.2015.02.112. Epub 2015 Feb 27.
In the perspective of studying lipid biosynthesis in the argan seed, the anatomy, ploidy level and lipid composition of mature seed tissues were investigated using an experimental design including two locations in Algeria and four years of study. Using flow cytometry, we determined that mature argan seeds consist of two well-developed tissues, the embryo and the endosperm. The lipid content of the embryo was higher than that of the endosperm, but the dry weight of the endosperm was higher. Consequently, both tissues contribute equally to seed oil yield. Considerable differences in fatty acid composition were observed between the two tissues. In particular, the endosperm 18:2 percentage was twofold higher than that of the embryo. The tocopherol content of the endosperm was also markedly higher than that of the embryo. In contrast, the endosperm and the embryo had similar sterol and triterpene alcohol contents and compositions.
从研究阿甘油生物合成的角度出发，采用包括阿尔及利亚两个地点和四年研究时间的实验设计，对成熟种子组织的解剖结构、倍性水平和脂质组成进行了研究。通过流式细胞术，我们确定成熟的阿甘油种子由两个发育良好的组织组成，即胚和胚乳。胚的脂质含量高于胚乳，但胚乳的干重更高。因此，这两个组织对种子油产量的贡献相等。在这两个组织之间观察到脂肪酸组成存在显著差异。特别是，胚乳中18:2的百分比比胚高出两倍。胚乳中的生育酚含量也明显高于胚。相比之下，胚乳和胚的甾醇和三萜醇含量及组成相似。
