| 地钱颈卵器发育和卵发生的显微观察及细胞化学研究 |
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| 引用本文： | 曹建国,王戈,王全喜. 地钱颈卵器发育和卵发生的显微观察及细胞化学研究[J]. 武汉植物学研究, 2011, 29(5): 607-612. DOI: 10.3724/SP.J.1142.2011.50607 |
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| 作者姓名： | 曹建国 王戈 王全喜 |
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| 作者单位： | 上海师范大学生命与环境科学学院; |
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| 基金项目： | 国家自然科学基金资助项目(30970267); 上海市教委重点学科资助项目(J50401) |
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| 摘 要： | 对地钱（Marchantia polymorpha）颈卵器发育和卵发生过程进行了显微观察和细胞化学的研究,颈卵器起始于原始细胞,该细胞呈乳突状,经横分裂产生基细胞和顶细胞,顶细胞经3次纵斜向分裂和1次横分裂产生初生细胞,初生细胞是颈卵器内的第一个细胞,经横分裂产生中央细胞和颈沟母细胞,前者产生1个腹沟细胞和1个卵细胞,后者最终产生4个颈沟细胞。颈卵器的成熟表现为颈部显著伸长和腹部膨大,卵细胞成熟时具有不规则的核,细胞质内含有丰富的囊泡和颗粒物,卵细胞周围充满粘性物质,细胞化学研究表明,该粘性物质为多糖,卵细胞质中深染色的颗粒可能为脂类物质,腹沟细胞自产生后就逐渐退化,颈沟细胞的退化迟于腹沟细胞,其数量通常为4个,偶尔可见5个颈沟细胞或具有双核的现象。
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| 关 键 词： | 苔类 地钱 颈卵器发育 卵发生 |
Microstructural Observations and Cytochemical Studies on the Archegonial Development and Oogenesis of Marchantia polymorpha |
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| CAO Jian-Guo,WANG Ge,WANG Quan-Xi. Microstructural Observations and Cytochemical Studies on the Archegonial Development and Oogenesis of Marchantia polymorpha[J]. Journal of Wuhan Botanical Research, 2011, 29(5): 607-612. DOI: 10.3724/SP.J.1142.2011.50607 |
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| Authors: | CAO Jian-Guo WANG Ge WANG Quan-Xi |
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| Affiliation: | CAO Jian-Guo*,WANG Ge,WANG Quan-Xi(College of Life and Environment Sciences,Shanghai Normal University,Shanghai 200234,China) |
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| Abstract: | The development of archegonium and oogenesis of the hepatica Marchantia polymorpha were studied using microscopical and cytochemical techniques.The archegonium developed from an initial cell,which formed an apical cell and a basal cell by a transverse division.The apical cell produced an inner primary cell by three oblique vertical divisions and a transverse division.The primary cell formed a central cell and a neck canal mother cell by a transverse division.The central cell formed an egg and a ventral cana... |
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| Keywords: | Hepatica Marchantia polymorpha Archegonium development Oogenesis |
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