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出 处:《北方园艺》2011年第8期159-161,共3页Northern Horticulture
摘 要:通过常规石蜡切片法观察研究了尖萼耧斗菜花药的发育过程。结果表明:尖萼耧斗菜每个花药具4个花粉囊,小孢子在四分体中的排列属四面体型。成熟花粉粒属2-细胞型,并有3个萌发沟。花粉囊壁由4层细胞构成,即表皮(1层)、药室内壁(1层)、中层(多层)、绒毡层(1层)。绒毡层发育属分泌型,出现多核现象。By the methods of paraffin section method,the anther of Aquilegia oxysepala Trautv.et C.A.Mey developmental process was studied.The results showed that each anther had four pollen sac in Aquilegia oxysepala Trautv.et C.A.Mey,the microspore mother cells belonged to the tetrahedric spore type in the tetrad.The mature pollens belonged to the two-cell type with three germination apertures.The pollen sac wall was composed of four layers,epidermis,endothelium,middle layer and tapetum.The tapetum belonged to secretory type with multinucleate phenomenon.
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