摘要
葡萄两性花的花蜜腺位于子房基部的花盘上，共５枚，呈椭圆形，与雄蕊相间排列，属于花盘蜜腺。蜜腺由表皮和泌蜜组织组成，缺乏维管束。表皮具薄的角质层，无气孔器。蜜腺原基由子房基部表层细胞恢复分裂能力形成。在蜜腺发育过程中，泌蜜组织的液泡规律性变化和多糖动态变化均不明显。原蜜汁由子房维管束的韧皮部提供，蜜汁通过表皮细胞排出。
The nectaries in the bisexual flower of Vitis vinifera are five ellipse shapped disc nectaries occuring on the ovary base,and alternate with five staments.They consist of epidermis,nectariferous tissue and are covered by a thin cuticule.During the development of nectary,the vacuoles and the content of starch grains change irregularly.The prenectar is supplied by the phloem of the ovary and the nectar is exuded via epidermis cells.
出处
《西北植物学报》
CAS
CSCD
1999年第5期5-8,T001,共5页
Acta Botanica Boreali-Occidentalia Sinica
关键词
葡萄
两性花
花蜜腺
发育解剖学
形态结构
Vitis vinifera Linn.
floral nectary
morphology
structure
development
