中国中药杂志

2010, v.35(19) 2523-2526

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明党参居群间花粉形态比较
Comparison on pollen morphology among populations of Changium smyrnioides

王长林;郭巧生;程搏幸;武玉妹;
WANG Changlin, GUO Qiaosheng, CHENG Boxing, WU Yumei(Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China)

摘要(Abstract):

目的:比较明党参居群间花粉形态差异,为明党参种质资源评价提供理论依据。方法:通过光学显微镜(LM)和扫描电子显微镜(SEM)观察,对我国明党参主要分布区内10个明党参居群的花粉形态特征进行比较。结果:不同居群的明党参花粉粒大小存在显著性差异,其中花粉粒最大的为红山栽培居群,最小的为九华山居群。各居群花粉粒P/E值均在1.5左右,呈椭圆形。表面纹饰的典型特征是条纹状结构,各居群间有纹理深浅和空隙有无的差异。萌发孔的典型特征是三孔沟结构,近方形,不同居群萌发孔长宽不一。红山栽培明党参的花粉粒中发现有四孔沟的花粉变异。结论:明党参花粉形态具有丰富的多样性,种内分化强烈。
Objective:To observe the pollen morphological differences among different populations of Changium smyrnioides.Method: The pollen morphology of 10 populations were examined through LM and SEM observations.Result: Pollens in different populations were distinguished from each other in the size,the largest average size was the pollen of the population cultivated in Hongshan,and the smallest was that of the population cultivated in Jiuhuashan.Pollens were oval-shaped in all of the populations,and P/E values were around 1.5.Typical feature of surface ornamentation was stripe-like structure,different populations were distinguished from each other in the texture depth and the gap.With different length and width in different populations,typical feature of germinal aperture was nearly square and 3 germinal furrows. Variation with 4 germinal apertures were found in the pollen of population cultivated in Hongshan.Conclusion: Diversity of pollen morphology was high,and differentiation was strong in Ch. smyrnioides.

关键词(KeyWords): 明党参;不同居群;花粉形态;变异
Changium smyrnioides; different populations; pollen morphology; variation

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基金项目(Foundation): 国家科技重大专项(2009ZX09308-002)

作者(Author): 王长林;郭巧生;程搏幸;武玉妹;
WANG Changlin, GUO Qiaosheng, CHENG Boxing, WU Yumei(Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China)

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