| 虫媒花与风媒花花粉形态的比较 |
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| 引用本文： | 周凌瑜,刘群录,邵邻相.虫媒花与风媒花花粉形态的比较[J].上海交通大学学报(农业科学版),2008,26(3):177-182. |
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| 作者姓名： | 周凌瑜 刘群录 邵邻相 |
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| 作者单位： | 1. 上海交通大学,农业与生物学院,上海,200240
2. 浙江师范大学,化学与生命科学学院,金华,321004 |
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| 摘 要： | 为了比较虫媒花与风媒花花粉形态上的差异，利用扫描电镜（SEM）对多种虫媒花与风媒花植物的花粉进行了观察。结果表明，虫媒花的花粉形状倾向于长球形，个体普遍比风媒花大；其外壁较粗糙，一级雕纹深刻，大多具次级雕纹。有些虫媒花的花粉具有刺状或疣状突起，有的植物（杜鹃）花粉的外壁具有粘丝。而风媒花中除了具气囊的松型花粉较大外，花粉个体普遍比较小，形状倾向于球形；其外壁比较光滑，一级雕纹大多较浅，为微弱或模糊的细网状或细颗粒状雕纹，基本上无明显的次级雕纹。因此．花粉形态的特征使虫媒花花粉有利于粘附在昆虫身体上传播。而使风媒花的花粉有利于逸散到空气中传播。
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| 关 键 词： | 虫媒花 风媒花 花粉形态 比较 |
Comparison of the Pollen Morphological Characters between Anthophilous Flowers and Anemophilous Flowers |
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| ZHOU Ling-yu,LIU Qun-lu,Shao Lin-xiang.Comparison of the Pollen Morphological Characters between Anthophilous Flowers and Anemophilous Flowers[J].Journal of Shanghai Jiaotong University (Agricultural Science),2008,26(3):177-182. |
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| Authors: | ZHOU Ling-yu LIU Qun-lu Shao Lin-xiang |
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| Institution: | ZHOU Ling-yu1,LIU Qun-lu1,Shao Lin-xiang2 (1. School of Agriculture , Biology,Shanghai Jiaotong University,Shanghai 200240,China,2. College of Chemical , Life Science,Zhejiang Normal University,Jinhua 321004,China) |
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| Abstract: | Pollen grains of some anthophilous flowers and anemophilous flowers were investigated with scanning electron microscope （SEM） to compare the pollen morphological characters between the two type flowers. The results demonstrated that the shape of anthophilous flowers＇ pollen grains was apt to be ellipsoid, and their size was generally larger than that of anemophilous flower＇. Comparing with the exine of anemophilous flowers, anthophilous flowers＇ pollen grains had coarser surface. The pollen surface ornamentation of insect-pollinated plants was deep and clear, most of them had the sub-ornamentation. Some anthophilous pollen had spinous or wart protuberance, sometimes, had slabby protonema （Rhododendron simsii）. By contrast, except pinaceaeous pollen, the size of a nemophilous flowers＇ pollen was small, and their shape was mostly roundness. The anemophilous pollen exine ornamentation was faintness; most of them had no sub-ornamentation. Therefore, the morphological characters make the pollen of anthophilous flowers easy to adhere to the body of insects, while the pollen of anthophilous flowers easy to diffuse to the air. |
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| Keywords: | anthophilous flowers anemophilous flower pollen morphology |
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