Banas Antoni, Debski Henryk, Banas Walentyna, Heneen Waheeb K, Dahlqvist Anders, Bafor Maureen, Gummeson Per-Olov, Marttila Salla, Ekman Asa, Carlsson Anders S, Stymne Sten
Institute of Biology and Environmental Protection, AP, ul Arciszewskiego 22, 76-200, Slupsk, Poland.
J Exp Bot. 2007;58(10):2463-70. doi: 10.1093/jxb/erm125. Epub 2007 Jun 22.
Oat (Avena sativa) is unusual in comparison with other cereals since there are varieties with up to 18% oil content. The lipid content and fatty acid composition in different parts of the grain during seed development were characterized in cultivars Freja (6% oil) and Matilda (10% oil), using thin-layer and gas chromatography, and light and electron microscopy. The majority of lipids (86-90%) were found in the endosperm. Ninety-five per cent of the higher oil content of cv. Matilda compared with cv. Freja was due to increased oil content of the endosperm. Up to 84% of the lipids were deposited during the first half of seed development, when seeds where still green with a milky endosperm. Microscopy studies revealed that whereas oil bodies of the embryo and scutellum still contained a discrete shape upon grain maturation, oil bodies of the endosperms fused upon maturation and formed smears of oil.
燕麦（ Avena sativa ）与其他谷物相比不同寻常，因为存在含油量高达18%的品种。利用薄层色谱法、气相色谱法、光学显微镜和电子显微镜，对Freja（含油量6%）和Matilda（含油量10%）两个品种种子发育过程中谷粒不同部位的脂质含量和脂肪酸组成进行了表征。大部分脂质（86 - 90%）存在于胚乳中。与Freja品种相比，Matilda品种较高的含油量中有95%是由于胚乳含油量增加所致。高达84%的脂质在种子发育的前半期沉积，此时种子仍为绿色，胚乳呈乳状。显微镜研究表明，尽管胚和盾片的油体在谷粒成熟时仍保持离散形态，但胚乳的油体在成熟时融合并形成油斑。
