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植物研究 ›› 2006, Vol. 26 ›› Issue (6): 672-675.doi: 10.7525/j.issn.1673-5102.2006.06.008

• 论文 • 上一篇    下一篇

樟子松大孢子的发生和雌配子体的形成过程

田成玉1,2;赵春建1;李春英1;祖元刚1*   

  1. (1.东北林业大学森林植物生态学教育部重点实验室,哈尔滨 150040) (2.黑龙江省烟草专卖局,哈尔滨 150001)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-11-20 发布日期:2006-11-20
  • 通讯作者: 祖元刚
  • 基金资助:
     

The emergence of macrospore and the formation of female gametophyte in Pinus sylvestris var. mongolica

TIAN Cheng-Yu;ZHAO Chun-Jian;LI Chun-Ying;ZU Yuan-Gang*   

  1. (1.Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University,Harbin 150040)(2.Tobacco Regie of Hei Longjiang Province, Harbin 150001)
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-11-20 Published:2006-11-20
  • Contact: ZU Yuan-Gang
  • Supported by:
     

摘要: 樟子松大孢子母细胞经一系列变化,发育成雌配子体。在哈尔滨地区樟子松大孢子母细胞于每年6月8~14日形成,接着进行减数分裂,于6月16~20日形成大孢子。随着大孢子核的分裂,进入游离核时期,并于次年5月28日~6月4日形成细胞壁,幼雌配子体中出现颈卵器原始细胞,它分裂一次形成颈细胞和中央细胞。6月7~9日中央细胞分裂成卵细胞和腹沟细胞,6月13~15日颈卵器发育成熟。成熟的颈卵器含有颈细胞、腹沟细胞和卵细胞,但颈细胞和腹沟细胞已经退化。

关键词: 樟子松, 大孢子, 雌配子体, 发育

Abstract: Macrospore metrocyte of Pinus sylvestris var. mongolica developed to female gametophyte containing female gamete-egg by a series of changes. Macrospore metrocyte formed on June 8~14 every year, then made a meiosis and macrospore formed on June 16~20 in Harbin. With the nucleus divisions of macrospore, macrospore went to the phase of free nuclei and the cell wall formed from May 28 to June 4 in the next year. The archegonial initial cell emerged in young female gametophyte and the neck cell and the central cell formed after it divided once. Central cell was divided to egg cell and ventralcanal cell on June 7~9, archegonia developped to mature on June 13~15. The mature archegonia contained neck cell, ventralcanal cell and egg cell, but neck cell and ventralcanal cell has degenerated.

Key words: Pinus sylvestris var. mogolica, macrospore, female gametophyte, development

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