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首页> 外文期刊>Australian Journal of Crop Science >Pollen morphology of the genus Lathyrus L. (Fabaceae) with emphasis on its systematic implications
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Pollen morphology of the genus Lathyrus L. (Fabaceae) with emphasis on its systematic implications

机译：山thy豆属（豆科）的花粉形态，重点是其系统意义

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The pollen morphology of 21 taxa of the genus Lathyrus, representing 9 sections Orobus, Lathyrostylis (=Platystylis), Lathyrus (syn. Cicercula), Orobon, Pratensis, Aphaca, Viciopsis, Linearicarpus and Nissolia from Central Anatolia, Turkey was investigated using light microscopy (LM) and scanning electron microscopy (SEM). The pollen grains of the studied taxa are 3-zonocolporate, spheroidal to prolate and medium to large (P = 28.67-54.32 μm, E = 20.17-52.58 μm). Their outline in the equatorial view is quadratic-obtuse- emarginate in L. tukhtensis, L. cilicicus and L. inconspicuus var. inconspicuus or elliptical to rectangular-obtuse-convex in the other taxa, and in the polar view it is circular, triangular or quinquangular-obtuse-convex. The surface ornamentation of the mesocolpium varies from obscurely reticulate-perforate in L. incurvus, L. brachypterus, L. armeus and L. hirsutus; perforate in L. tukhtensis and L. cilicicus; reticulate-granulate in L. cicera; perforate-granulate in L. inconspicuus var. inconspicuus to finely reticulate-perforate in the rest of the taxa. The apocolpium and colpus area are psilate or perforate in all taxa except L. chloranthus, which exhibits the finely reticulate-perforate pattern. The findings of the study reveal that pollen morphological characters such as the surface sculpturing type, pollen size, shape and outline in equatorial view are mostly useful in distinguishing the studied taxa, but they do not provide strong evidence for the infrageneric delimitation of the genus.
机译：利用光学显微镜对土耳其中部安那托斯的9个山sections豆科植物Lathorus的21个类群的花粉形态进行了研究，它们分别代表Orobus，Lathyrostylis（= Pytystylis），Lathyrus（sice。Cicercula），Orobon，Pratensis，Aphaca，Viciopsis，Linearcarpcarpus和Nissolia。 （LM）和扫描电子显微镜（SEM）。研究的分类单元的花粉粒为3-zonocolporate，球形到长圆形，中等到大（P = 28.67-54.32μm，E = 20.17-52.58μm）。在赤道视图中，它们的轮廓是图赫特山L. cilicicus和L. inconspicuus var中的二次钝角微边缘。在另一个类群中不显眼或椭圆形至矩形钝角凸，在极点视图中为圆形，三角形或五角形钝凸。中col的表面装饰在弯曲的L. incurvus，L。brachypterus，L。armeus和L. hirsutus中有不同的网状穿孔。 tukhtensis和cilicicus的穿孔; L. cicera中的网状颗粒; L. inconspicuus var中的穿孔状颗粒。在其他类群中不明显至细网状穿孔。在所有分类单元中，除绿藻利森氏菌（L. chloranthus）外，种质和col虫的区域均为扁桃体或有孔的，后者表现出细网状的穿孔模式。研究结果表明，在赤道观中，花粉的形态特征，如表面雕刻类型，花粉大小，形状和轮廓等，在区分所研究的类群方面最有用，但不能为该属的属下划界提供有力的证据。

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