Lipids in grain tissues of oat (Avena sativa): differences in content, time of deposition, and fatty acid composition |
| |
Authors: | 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 |
| |
Institution: | Institute of Biology and Environmental Protection, AP, ul Arciszewskiego 22, 76-200, Slupsk, Poland. |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 PubMed Oxford 等数据库收录! |
|