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植物研究 ›› 1995, Vol. 15 ›› Issue (4): 460-464.

• 论文 • 上一篇    下一篇

平贝母地下器官生长发育规律的研究

王臣, 刘玫, 刘鸣远   

  1. 哈尔滨师范大学生物系, 哈尔滨 150080
  • 收稿日期:1995-02-01 出版日期:1995-12-15 发布日期:2016-06-14
  • 基金资助:
    国家自然科学基金

STUDY ON THE DEVELOPMENTAL RHYTHM OF THE UNDERGROUND ORGAN OF Fritillaria ussuriensis MAXIM

Wang Chen, Liu Mei, Liu Ming-yuan   

  1. Biology Department of Harbin Normal University, Harbin, 150080
  • Received:1995-02-01 Online:1995-12-15 Published:2016-06-14

摘要: 本文在对平贝母个体发育一般观察的基础上, 重点研究了地下器官的生长发育规律。揭示了鳞茎在个体发育中的主导地位;来自胚根的初生根和由不定根组成的须根系都是短命的;须根系的发育特点为跨年全更替型。无论初生根或须根系的细胞中均未发现贮藏淀粉。这可能与贮藏器官鳞茎的发达有关。

关键词: 平贝母, 鳞茎, 根系, 发育规律

Abstract: In this paper, the developmental rhythm of the underground organs of Fritillaria ussuriensis was studied according to the individual development. The bulb of F. ussuriensis plays a leading role in its life. Both primary root and fibrous root systems are short-lived. The developmental characteristic of the fibrous root system is biennial total renewal type. There are no starch grains discovered in primary and fibrous root cells at any season. That may be corelated with that the bulb is a storage organ.

Key words: Fritillaria ussuriensis, Bulb, Root system, Developmental rhythm