摘要
利用扫描电镜技术和树脂切片技术对蕨类植物桂皮紫萁 (OsmundacinnamomeaL .var.asiaticaFernald)的颈卵器和精子器的形态和发育进行了细致的研究。颈卵器发生于雌配子体的腹面 ,颈部由 4列壁细胞构成 ,6～ 7个细胞高 ,内部含有颈沟细胞、腹沟细胞和卵细胞 ,卵细胞在整个发育过程中 ,造粉体和囊泡最为显著 ,颈卵器内的卵细胞成熟时产生卵膜和分离腔。精子器发生于雄配子体的边缘及腹面 ,由 7～ 8个壁细胞螺旋状围绕而成 ,壁细胞内为产精组织 。
In present paper, the morphology and development of the archegonium and antheridium of the fern Osmunda cinnamomea L.var. asiatica Fernald was observed by means of Scanning Electron microscope(SEM) and resin section. The archegonium formed in the undersurface of the female gametophyte consists of 4 row wall cells and 6～7cells high in the neck. The inner of the archegonium includes the neck canal cell, the venter canal cell and the egg. The amyloplast and vesicle in the egg are prominent in all stages. The egg forms egg membrane and separate cavity when it matures. The antheridium formed on the margin and the lower surface of the male gametophyte consists of 7～8 wall cell. The inner of the antheridium is spermatogenouse tissue. As the spermatid mature the cap cell dehisces and the spermatozoids are discharged through the cap cell.
出处
《植物研究》
CAS
CSCD
北大核心
2003年第1期42-45,T005-T006,共6页
Bulletin of Botanical Research
基金
国家自然科学基金 ( 397742 13)
黑龙江省自然科学基金资助项目
