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植物研究 ›› 2012, Vol. 32 ›› Issue (6): 641-645.doi: 10.7525/j.issn.1673-5102.2012.06.001

• 论文 •    下一篇

新疆鼠尾草花蜜腺的发育解剖学研究

郭骏;王虹*;张卫红;王江   

  1. 新疆大学生命科学与技术学院,乌鲁木齐 830046
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-11-20 发布日期:2012-11-20
  • 通讯作者: 王虹
  • 基金资助:
     

Developmental Anatomy of the Floral Nectaries in Salvia deserta Schang

GOU Jun;WANG Hong*;ZHANG Wei-Hong;WANG Jiang   

  1. College of Life Science and Technology,Xinjiang University,Urumqi 830046
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-11-20 Published:2012-11-20
  • Contact: WANG Hong
  • Supported by:
     

摘要: 新疆鼠尾草(Salvia deserta Schang)花蜜腺位于子房基部的花托上,为盘状的花托蜜腺,其顶部裂成4片,其裂片大小不等,比例悬殊。蜜腺由产蜜组织和分泌表皮构成,又为结构蜜腺。组织化学染色显示淀粉粒动态明显,因此又属淀粉蜜腺。在发育的过程中细胞液泡化动态明显,且淀粉粒和蛋白质具有明显的消长变化,但PAS反应和苏木精脂类染色无明显变化。其泌蜜过程可能为:原蜜汁由邻近的韧皮部提供,经薄壁细胞运送至产蜜组织,在产蜜组织中进一步积聚、合成后,最终蜜汁通过变态气孔和分泌表皮细胞的角质层泌出。

关键词: 新疆鼠尾草, 花蜜腺, 发育解剖学

Abstract: The floral nectary of Salvia deserta Schang from Xinjiang locates on the based ovary receptacle,which belongs to plate receptacle nectary. The top of the floral nectary is divided into 4 slices which differ in size distinctly.The nectary is composed of epidermis and nectariferous tissue belonging to structural nectary.Histochemistry staining shows obvious changes of starch grains,so the nectary also belongs to starch nectary.During the nectary development,there are obvious morphological changes of vacuole and obvious changes of starch grains and protein as well.However,no significant change of PAS reaction and Hematoxylin staining of lipids was observed.The pre-nectar comes from the adjacent phloem and then transports to nectariferous tissue by parenchyma cells.The nectar is gathered and synthesized in nectariferous tissue and is excreted from the epidermal cells and modified stoma at last.

Key words: Salvia deserta Schang, floral nectary, anatomy

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