| 蓼科花粉外壁超微结构的研究 |
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| 引用本文： | 周忠泽,许仁鑫,庄永龙,林中清.蓼科花粉外壁超微结构的研究[J].中国科学院研究生院学报,2000,38(5):446-451. |
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| 作者姓名： | 周忠泽 许仁鑫 庄永龙 林中清 |
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| 摘 要： | 用扫描电镜和透射电镜对蓼科6属15种的花粉壁构造的特点进行了观察和研究。结果表明：
(1)外壁纹饰有如下几种：颗粒-穿孔，微刺-穿孔，微刺-穿孔-光滑，颗粒-穿孔-光滑，细网状，粗网状，皱
块状，鼓锤状；(2)外壁结构分化成两个明显的层次，即外壁外层以及外壁内层。其外壁外层由覆盖层、
柱状层和基层组成。然而，由于每一部分发育状况的不同而导致外壁结构有各种变化，如无覆盖层或无外壁内层。
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| 关 键 词： | 蓼科 花粉外壁 超微结构 |
Studies on pollen exine ultrastructure of the Polygonaceae |
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| ZHOU Zhong-Ze,XU Ren-Xin,ZHUANG Yong-Long,LIN Zhong-Qing.Studies on pollen exine ultrastructure of the Polygonaceae[J].Journal of the Graduate School of the Chinese Academy of Sciences,2000,38(5):446-451. |
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| Authors: | ZHOU Zhong-Ze XU Ren-Xin ZHUANG Yong-Long LIN Zhong-Qing |
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| Abstract: | Pollen grains of 15 species representing 6 genera in the Polygonaceae were examined un-
der scanning electron microscope (SEM) and transmission electron microscope (TEM). The results
are summarized as follows: (1) The ornamentation of exine is granulate-perforate, microechinate-
perforate, microechinate-perforate-smooth, granulate-perforate-smooth,finely reticulate, coarsely re-
ticulate, or rugulate, granulate. (2) Under TEM all of the taxa examined generally have the exine
stratification typical of the dicots: tectum, columellae, foot layer and endexine, although differencesin the development of each of these units have resulted in variation in the exine structure. |
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| Keywords: | Polygonaceae Pollen exine Ultrastructure |
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