首页> 中文期刊> 《西北植物学报》 >黄花补血草叶片盐腺的发育解剖学研究

黄花补血草叶片盐腺的发育解剖学研究

         

摘要

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.%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.

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号