| 国产菟丝子属种子形态的观察 |
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| 引用本文： | 黄建中,李扬汉,章毓英.国产菟丝子属种子形态的观察[J].中国科学院研究生院学报,1993,31(3):261-265. |
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| 作者姓名： | 黄建中 李扬汉 章毓英 |
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| 摘 要： | 本文观察了中国产菟丝子属种子的形态和种皮表面的超微结构。菟丝子属种子表面特征如下：
种脐呈衣领状突起或与晕轮面平齐或下陷；晕轮细胞呈近放射状排列或网状排列或不规则排列；种皮
表面呈条纹状纹饰或脑纹状纹饰或网状纹饰，纹饰上有时具瘤状突起或块状附属物。根据上述特征，可将菟丝子属种子分成三种类型。种皮纹饰可作为分类鉴定和种子检疫的依据。
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| 关 键 词： | 菟丝子属种子 种脐 晕轮 种皮 |
Surface Ultrastructure of Seeds of Chinese Cuscuta |
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| Huang Jian-zhong,Li Yang-han,Zhang Yu-ying.Surface Ultrastructure of Seeds of Chinese Cuscuta[J].Journal of the Graduate School of the Chinese Academy of Sciences,1993,31(3):261-265. |
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| Authors: | Huang Jian-zhong Li Yang-han Zhang Yu-ying |
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| Abstract: | The surface ultrastructure of seeds of chinese Cuscuta was observed under
SEM. The main results are as follows: the seed surface could be divided into
three parts: hilum, hilum-rim and spermoderm. The hilum is collar-shaped or
higher or lower than level of hilum-tim. Hilum-rim cells are mostly radiately ar-
ranged and less frequently in reticulate or other types of arrangement. The
spermoderm shows at least three patterns of ornamentation, cerebelloid, striate
or irregular, on which some tuberculate or small clumps of granules could be
found sometimes According to the surface ultrastructure of the hilum, hilum-rim
and spermoderm, the observed dodder seeds could be divided into three types.
The surface characters of dodder seeds are also important both for diagnosis ofspecies and for quarantine of dodders. |
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| Keywords: | Cuscuta seeds hilum hilum-rim spermoderm |
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