摘要
采用石蜡切片技术,对赤瓟的小孢子发生和雄配子体形成过程进行解剖学研究。赤瓟每个花药具2个花粉囊;减数分裂过程中胞质分裂属同时型,小孢子在四分体中的排列以四面体型为主;成熟花粉粒近球形,属2-细胞型,表面有网状雕纹,具有3条萌发沟;花药壁由4层细胞构成,即表皮(1层)、药室内壁(1层)、中层(数层)、绒毡层(1层);绒毡层发育属分泌型。
Anatomical study on procedures of microsporogenesis and male gametophyte formationin for Thk/d/antha dub/a.was car- fled out. The results showed that in T. dubla, each anther had two pollen sac; cytokinesis were simultaneous in meiosis, microspore were tetmhedron-shape; mature pollens were subglobose, two-cell type, with reticulate ornamentation on the surface and three germi- nal furrows; pollen sac wall was composed of four layers, namely epidermis （one layer）, endothelium （ one layer）, middle layer（ sev- eral layers ）, and tapetum （one layer）; and tapeta were seeretor type.
出处
《辽宁林业科技》
2013年第1期10-13,共4页
Liaoning Forestry Science and Technology
基金
留学归国人员科研启动基金项目(教外司留(2010)11516)
延边大学科研启动基金
关键词
赤瓟
葫芦科
小孢子
雄配子体
Thladlantha dubla
Cucurbitaceae
microspore
male gametophyte
