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繁缕和鹅肠菜的花维管束系统比较解剖学研究及其系统学意义

李祖任, 胡楠, 杨吉刚, 杨冰, 廖海民

李祖任, 胡楠, 杨吉刚, 杨冰, 廖海民. 繁缕和鹅肠菜的花维管束系统比较解剖学研究及其系统学意义[J]. 植物科学学报, 2013, 31(6): 525-532. DOI: 10.3724/SP.J.1142.2013.60525
引用本文: 李祖任, 胡楠, 杨吉刚, 杨冰, 廖海民. 繁缕和鹅肠菜的花维管束系统比较解剖学研究及其系统学意义[J]. 植物科学学报, 2013, 31(6): 525-532. DOI: 10.3724/SP.J.1142.2013.60525
LI Zu-Ren, HU Nan, YANG Ji-Gang, YANG Bing, LIAO Hai-Min. Floral Vascular Comparative Anatomy of Stellaria media and Myosoton aquaticum and its Systematic Significance[J]. Plant Science Journal, 2013, 31(6): 525-532. DOI: 10.3724/SP.J.1142.2013.60525
Citation: LI Zu-Ren, HU Nan, YANG Ji-Gang, YANG Bing, LIAO Hai-Min. Floral Vascular Comparative Anatomy of Stellaria media and Myosoton aquaticum and its Systematic Significance[J]. Plant Science Journal, 2013, 31(6): 525-532. DOI: 10.3724/SP.J.1142.2013.60525
李祖任, 胡楠, 杨吉刚, 杨冰, 廖海民. 繁缕和鹅肠菜的花维管束系统比较解剖学研究及其系统学意义[J]. 植物科学学报, 2013, 31(6): 525-532. CSTR: 32231.14.SP.J.1142.2013.60525
引用本文: 李祖任, 胡楠, 杨吉刚, 杨冰, 廖海民. 繁缕和鹅肠菜的花维管束系统比较解剖学研究及其系统学意义[J]. 植物科学学报, 2013, 31(6): 525-532. CSTR: 32231.14.SP.J.1142.2013.60525
LI Zu-Ren, HU Nan, YANG Ji-Gang, YANG Bing, LIAO Hai-Min. Floral Vascular Comparative Anatomy of Stellaria media and Myosoton aquaticum and its Systematic Significance[J]. Plant Science Journal, 2013, 31(6): 525-532. CSTR: 32231.14.SP.J.1142.2013.60525
Citation: LI Zu-Ren, HU Nan, YANG Ji-Gang, YANG Bing, LIAO Hai-Min. Floral Vascular Comparative Anatomy of Stellaria media and Myosoton aquaticum and its Systematic Significance[J]. Plant Science Journal, 2013, 31(6): 525-532. CSTR: 32231.14.SP.J.1142.2013.60525

繁缕和鹅肠菜的花维管束系统比较解剖学研究及其系统学意义

基金项目: 贵州大学研究生创新基金项目“贵州省烟田主要杂草的苗期识别”(研农2013029);中国烟草总公司贵州省公司科技项目“贵州省烟草有害生物调查研究”(201022)。
详细信息
    作者简介:

    李祖任(1987- ),男,硕士研究生,研究方向为植物分类与形态解剖学。

    通讯作者:

    廖海民,博士,教授,主要从事植物分类及形态解剖学研究(E-mail:lhaimin@163.com)。

  • 中图分类号: Q944.5;Q949.745.8

Floral Vascular Comparative Anatomy of Stellaria media and Myosoton aquaticum and its Systematic Significance

  • 摘要: 运用石蜡制片技术,对繁缕(Stellaria media)和鹅肠菜(Myosoton aquaticum)的花维管束系统进行了比较解剖观察,为其系统分类提供了一定的科学依据。研究结果表明,两者维管系统有以下特征:(1)花梗部维管束以3束不封闭成环形式分布在中央区。(2)花梗顶部维管束形成一个封闭的分生组织环。(3)分生组织环最先呈辐射状分离出的外层10束,每相隔一个束的那个束向外分裂出2束。其中15束是通往花萼的维管束,5束是通往花瓣的维管束。通往花瓣的5束维管束又一分为二,变成10束花瓣维管束。(4)分生组织环再呈辐射状分裂出10束,形成雄蕊维管束。(5)在子房室区分生组织环再呈辐射状分裂出4子房隔膜束,每束分裂出3束,形成胎座维管束,其数目为12束,每一束均与一个胚珠相连,从而使子房壁维管束数目增加到16束。鉴于繁缕和鹅肠菜花维管束系统的高度一致,将鹅肠菜置于繁缕属比较恰当。
    Abstract: The floral vascular anatomy of Myosoton aquaticum and Stellaria media were compared by paraffin section,which supplied scientific data for systematy.Results on the floral vascular anatomy showed that:(1)Vascular of pedicel had three bundles that an unclosing ring,which scattered within the central region.(2)At the top-pedicel,bundles formed a closing meristem ring.(3)The meristem ring was radially divided into ten parietal bundles.Each bundle was divides into two,with 15 bundles linked to the sepals and five linked to the petals.These five bundles divided again to from 10 petal vasculars.(4)The meristem ring was radially divided into 10 bundles from stamen vascular.(5)In the locular region,the meristem ring was radially divided into four locular parictal bundles.Each locular parictal bundle divided into three to from 12 placental bundles,which were linked to the ovule everyone.The ovary wall had 16 bundles.It is appropriate that M.aquaticum belongs to Stellaria,based on the high similarity in vascular anatomy of M.aquaticum and S.media.
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出版历程
  • 收稿日期:  2013-04-27
  • 修回日期:  2013-07-28
  • 发布日期:  2013-12-29

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