李璐, 杨晨璇, 罗艳, 向建英. 5种水东哥属(猕猴桃科)植物的花粉形态及分类学意义[J]. 西南林业大学学报, 2018, 38(5): 84-89. DOI: 10.11929/j.issn.2095-1914.2018.05.014
引用本文: 李璐, 杨晨璇, 罗艳, 向建英. 5种水东哥属(猕猴桃科)植物的花粉形态及分类学意义[J]. 西南林业大学学报, 2018, 38(5): 84-89. DOI: 10.11929/j.issn.2095-1914.2018.05.014
Lu Li, Chenxuan Yang, Yan Luo, Jianying Xiang. Pollen Morphology of 5 Species in Saurauia(Actinidiaceae) with Its Systematic Implications[J]. Journal of Southwest Forestry University, 2018, 38(5): 84-89. DOI: 10.11929/j.issn.2095-1914.2018.05.014
Citation: Lu Li, Chenxuan Yang, Yan Luo, Jianying Xiang. Pollen Morphology of 5 Species in Saurauia(Actinidiaceae) with Its Systematic Implications[J]. Journal of Southwest Forestry University, 2018, 38(5): 84-89. DOI: 10.11929/j.issn.2095-1914.2018.05.014

5种水东哥属(猕猴桃科)植物的花粉形态及分类学意义

Pollen Morphology of 5 Species in Saurauia(Actinidiaceae) with Its Systematic Implications

  • 摘要: 利用扫描电镜,观察了5种水东哥属(猕猴桃科)植物的花粉形态特征。结果表明:5种水东哥的花粉均为长球形,极面观为三裂圆形,花粉形态小,属小型花粉粒。花粉形态在种间变异较大,可作为属内种间分类的依据,如萌发沟为三孔沟型或三拟孔沟型;矩形内孔有或无;花粉外壁纹饰多样,有细孔、粗网孔或穴状穿孔的皱波状纹饰。水东哥属的花粉形态特征在猕猴桃科中及其近缘类群中较为独特,具有重要的系统分类学意义。

     

    Abstract: Pollen grains of 5 species in Saurauia Willd. (Actinidiaceae) were examined using scanning electronic microscope (SEM). The pollens were consistently characterized by the small-sized and spherioidal shape with 3-lobed circular in outline in polar view. On the other side, pollen micromorphology is varied clearly between species, which could be used as identification of species, such as the presence or absence of a rectangle ora in tricolporate aperture, the type of aperture (3-colporoidate or tricolportae), and the rugulate exine sculptures (with foveroatle, or finely, or roughly reticulate apertures). Some features of Saurauia were unique and informative taxonomically in Actinidiaceae, as well as among its related families.

     

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