---

作 者 ：倪细炉1，谭玲玲2，沈效东1*

期 刊 ：西北植物学报 2012年 8期 页码：1587~1591

关键词：黄花补血草；盐腺；发育；解剖结构；

Keywords:Limonium aureum, salt gland, development, anatomical structure,

摘 要 ：利用扫描电镜和石蜡切片法对黄花补血草叶片进行解剖学研究,观察叶片营养器官中盐腺的分布、密度、结构及发育过程。结果表明:黄花补血草叶片上、下表皮有大量的盐腺分布，且下表皮的盐腺密度比上表皮的多，盐腺周围有7～9个表皮细胞呈辐射状排列；盐腺的成熟结构由12个细胞构成，中央有4 个分泌细胞,每个分泌细胞都有一个明显的分泌孔，是盐分泌出的通道；分泌细胞外侧伴有4个弧形的毗邻细胞围成一圈；盐腺内部靠近叶肉细胞处有4 个收集细胞。研究认为，黄花补血草盐腺由一个表皮原始细胞发育而成,分别经历单细胞时期、2细胞时期、4 细胞时期、8 细胞时期和12细胞时期的不同发育阶段。

Abstract:The leaf anatomical structure of Limonium aureum was studied by SEM and paraffin method,especially for observing the salt gland location,structure and development.The result indicated that a lot of salt glands was lay in the leaf.The density of salt glands on the abaxial epidermis was slightly higher than that on the adaxialepidermis.And 7～9 epidermal cells radially arranged surrounding thesalt gland.The mature structure of salt gland included 12 cells.There were 4 central secretory cells,and a small hole on the center of saltgland cuticle,where salt released.Outside the secretory cell were the adjacent cells,which were cambered.Behind them were 4 big cells called collecting cell which was close tomesophyll cells.The salt gland of Limonium aureum originaled from a single epidermal cell.After that,it went through 5 stages which were called as single cell stage,2 cell stage,4 cell stage,8 cell stage and 12 cell stage,respectively.

---