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Position: Home > Articles > Comparison Between the Lespedeza formosa and the L. bicolor in Pollen Morphology Acta Horticulturae Sinica 2011,38 (5) 985-988

美丽胡枝子与二色胡枝子花粉形态比较

作  者:
王奎玲;刘庆超;刘红;刘庆华;刘明健
单  位:
青岛农业大学园林园艺学院;威海艺苑园林绿化工程有限公司
关键词:
美丽胡枝子;二色胡枝子;花粉形态
摘  要:
对美丽胡枝子(Lespedeza formosa)花粉形态进行了光学显微镜及扫描电镜观察,并以胡枝子属中进化水平较低的二色胡枝子(L.bicolor)花粉为对照进行比较分析。结果表明:美丽胡枝子的花粉粒极轴×赤道轴为23.7μm×14.2μm,花粉粒大小均匀;二色胡枝子的花粉粒极轴×赤道轴约为20.3μm×11.5μm,花粉粒大小变异较大;两种花粉均具3条萌发沟,表面纹饰的基本类型都属网状纹饰,这些特性与传统属级水平分类一致;从花粉表面纹饰看,二色胡枝子演化水平高于美丽胡枝子,后者为山东胡枝子属中较原始的一个种。
译  名:
Comparison Between the Lespedeza formosa and the L. bicolor in Pollen Morphology
作  者:
WANG Kui-ling1,LIU Qing-chao1,LIU Hong1,LIU Qing-hua1,and LIU Ming-jian2 (1 Qingdao Agricultural University,Qingdao,Shandong 266109,China;Weihai Yiyuan Landscaping Engineering Co.Ltd,Weihai,Shandong 264200,China)
关键词:
Lespedeza formosa;Lespedeza bicolor;pollen morphology
摘  要:
Lespedeza formosa is a kind of euryoecious plant with great resistibility. There are some experimental research reports on the palynology of the Lespedeza Michx. from Shandong,but nor the submicrostructure of the pollen of the L. formosa. In this paper pollen morphology of the L. formosa was examined by the scanning electron microscope(SEM),and using the L. bicolor as contrast which is regarded as the genus species of inferior organic evolution in Lespedeza Michx. It showed that the polar axis of the L. formosa pollen is 23.7 μm,the equatorial axis is 14.2 μm,and the pollen grains are even in size;while the polar axis of the L. bicolor pollen is 20.3 μm,the equatorial axis is 11.5 μm,pollen grains are uneven in size. In equatorial view,pollen grain of the L. formosa is of elliptic,while the pollen grain of the L. bicolor is of rectangular. In polar view,the pollen grains of the two species both have three germinal furrows. Those data are in accordance with the pollen morphology characteristics of the Lespedeza Michx. According to the pollen surface ornamentation,the L. bicolor is more advanced genus species than the L. formosa,and the latter is the genus species of inferior organic evolution in Lespedeza Michx. in Shandong.

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