甘蓝无蜡粉突变体叶表皮蜡质超微结构观察

Observation of Ultra Microstructure of Wax-less Mutant Epicuticular Wax on Cabbage

运用扫描电子显微镜对结球甘蓝无蜡粉突变体及野生型材料不同生长时期的叶表皮蜡质发育状况进行比较观察。结果表明:甘蓝无蜡粉突变体也有蜡质晶体存在,但蜡质发育不完全,整个生长期以颗粒状晶体结构为主;野生型不同生长时期表现出不同的蜡质晶体结构,苗期以颗粒状和片状为主,结球期以圆柱状和片状为主,成熟期以片状和线状为主。

Different growth periods of epicuticular wax development on cabbage(Brassica oleracea L. var. capitata L.)leaves were observed by scanning electron microscope,and types of wax mutant and wild-type cabbage leaves were selected as materials.Results showed that some waxes crystals were found in the wax mutant,the waxes crystals were immature and granular in the entire growth period. Different structure of waxes crystals were found in the wild-type,granular and flaky were major crystals structure at seedling stage,while cylindrical and flaky at head-forming stage,flaky and linear at mature stage.