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林业科学 ›› 2002, Vol. 38 ›› Issue (3): 38-41.doi: 10.11707/j.1001-7488.20020307

• 论文及研究报告 • 上一篇    下一篇

雷竹地下鞭侧芽内源激素的动态变化研究

黄坚钦1 刘力3 章滨森2 裘丽珍4   

  1. 浙江林学院资源环境系,临安311300;浙江林业厅种苗站,杭州310007
  • 收稿日期:2000-02-14 修回日期:1900-01-01 出版日期:2002-05-25 发布日期:2002-05-25

DYNAMIC CHANGES OF ENDOPHYTOHORMONES IN RHIZOMAL BUDS OF PHYLLOSTACHYS PRAECOX

Huang Jianqin,Liu Li,Zhang Binsen,Qiu Lizhen   

  1. Zhejiang Forestry College Lin′an311300;Zhejiang Forestry Bureau Hangzhou310007
  • Received:2000-02-14 Revised:1900-01-01 Online:2002-05-25 Published:2002-05-25

摘要:

通过酶联免疫法测定了雷竹(Phyllostachys praecox)地下鞭侧芽内源激素的动态变化。在1a生鞭中生长促进激素(IAA ,ZT ,iPA)具相似的月波动规律,而与ABA变化规律相反;未覆盖1a生鞭梢部侧芽的生长促进激素3月份快速增长,比其基部侧芽早1个月形成高峰值;覆盖后1a生鞭基部侧芽同样比对照基部早1个月形成生长促进激素。7月份,ZT、iPA在1a生鞭侧芽内含量较低,IAA则相对较高,ABA在鞭基部侧芽具较高的含量,而在鞭梢部具较低的含量。因此,生长素 脱落酸与芽的萌动有关,产鞭与产笋则与细胞分裂素 脱落酸有关。并探讨了覆盖提早出笋的生物学机理。

关键词: 雷竹, 鞭芽, 内源激素, 覆盖

Abstract:

The endophytohormones in the rhizomal buds of Phyllostachys praecox were tested monthly by ELISA. The results showed that the endophytohormones such as IAA, ZT and iPA in one-year-old rhizomal buds had the similar changes which fluctuated monthly, however the changes of ABA gave the opposite pattern. IAA, ZT and iPA arose one month earlier in spring at the top of the one-year-old rhizomal buds than at the bottom. When the coverage used, the buds at the bottom produced high level of IAA, ZT and iPA one month earlier than those non-coverage used. In July when buds on the top of rhizome developed a new rhizome, the ZT and iPA got lower and IAA kept high; ABA was much high in the buds at the bottom, however it was quite lower at the top. So the formation of the shoots and the rhizome were great relative with the changes of endophytohormones. IAA/ABA was relative with the activity of buds. ZT/ABA and iPA/ABA was relative with the formation of shoots. The biological mechanism of producing shoots earlier by using covering method was also discussed.

Key words: Phyllostachys praecox, Rhizomal bud, Endophytohormone, Coverage