He Yu-Qing, Wu Yan
Key Laboratory of Ministry of Education for Plant Developmental Biology, College of Life Science, Wuhan University, Wuhan, China.
J Integr Plant Biol. 2009 Aug;51(8):792-9. doi: 10.1111/j.1744-7909.2009.00851.x.
Although the oil body is known to be an important membrane enclosed compartment for oil storage in seeds, we have little understanding about its biogenesis during embryogenesis. In the present study we investigated the oil body emergence and variations in Brassica napus cv. Topas. The results demonstrate that the oil bodies could be detected already at the heart stage, at the same time as the embryos began to turn green, and the starch grains accumulated in the chloroplast stroma. In comparison, we have studied the development of oil bodies between Arabidopsis thaliana wild type (Col) and the low-seed-oil mutant wrinkled1-3. We observed that the oil body development in the embryos of Col is similar to that of B. napus cv. Topas, and that the size of the oil bodies was obviously smaller in the embryos of wrinkled1-3. Our results suggest that the oil body biogenesis might be coupled with the embryo chloroplast.
尽管油体是种子中储存油脂的重要膜包被区室，但我们对其在胚胎发育过程中的生物发生了解甚少。在本研究中，我们调查了甘蓝型油菜品种Topas中油体的出现及变化。结果表明，在心脏期就能检测到油体，此时胚胎开始变绿，淀粉粒在叶绿体基质中积累。相比之下，我们研究了拟南芥野生型（Col）和低种子油突变体皱叶1-3之间油体的发育情况。我们观察到，Col胚胎中的油体发育与甘蓝型油菜品种Topas相似，而皱叶1-3胚胎中的油体明显较小。我们的结果表明，油体生物发生可能与胚胎叶绿体有关。
