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利用扫描电镜对不同来源的31份莲种质的花粉形态进行了观察。研究结果表明:花粉外部形态均呈近球形,赤道面观均为椭圆形,极面观大部分呈三裂圆形,少量种质有近圆形。所有莲种质除都具3条萌发沟外,在5个种质中还首次发现具有散沟的花粉(六沟花粉)。不同种质间花粉形态特征具有差异,尤其是萌发器官和外壁纹饰细部特征的差别,体现了不同莲种质的遗传多样性和遗传分化,可为种质间亲缘关系及系统发育研究提供有价值的依据。
The pollen morphology of 31 lotus germplasm from different origins was observed by scanning electron microscopy. The results showed that the external morphology of pollen was nearly spherical, the equatorial view was oval, most of the polar surface was three-cleaved, and few germplasms were nearly circular. All lotus germplasm except for the three germination trough, the first in five germplasm also found that with the ditch pollen (Liu ditch pollen). The differences of the morphological characteristics of pollen among different germplasm, especially the details of the germination organs and the outer wall ornamentation, reflected the genetic diversity and genetic differentiation of different lotus germplasm, which could provide valuable information for genetic relationship and phylogenetic study The basis.