Oil Body Biogenesis during Brassica napus Embryogenesis  

作　　者：Yu-Qing He Yan Wu 

机构地区：[1]Key Laboratory of Ministry of Education for Plant Developmental Biology, College of Life Science, Wuhan University, Wuhan 430072, China

出　　处：《Journal of Integrative Plant Biology》2009年第8期792-799,共8页植物学报（英文版）

基　　金：Supported by the State Key Basic Research and Development Plan of China(2006CB101601);the National Natural Science Foundation of China(30521004)

摘　　要：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.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.

关 键 词：Arabidopsis thaliana Brassica napus CHLOROPLAST EMBRYOGENESIS oil body 

分 类 号：S512.1[农业科学—作物学] S565.4