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林业科学 ›› 2003, Vol. 39 ›› Issue (1): 69-74.doi: 10.11707/j.1001-7488.20030111

• 论文及研究报告 • 上一篇    下一篇

巨桉芽器官离体培养与快繁体系建立的研究

石大兴 石轶松 王米力 曾平安 刘碧英   

  1. 四川农业大学林学园艺学院,雅安625014;重庆大学资源与环境学院,重庆400044;四川农业大学林学园艺学院,雅安625014;四川省林木种苗站,成都610081
  • 收稿日期:2002-03-07 修回日期:1900-01-01 出版日期:2003-01-25 发布日期:2003-01-25

RAPID PROPAGATION FROM SPROUT CULTURE IN VITRO OF EUCALYPTUS GRANDIS

Shi Daxing,Wang Mili,Shi Yisong,Zeng Ping'an,Liu Biying   

  1. College of Forestry and Horticulture, SAU Ya'an625014;College of Resource and Environment, Chongqing University Chongqing400044;The Forestry Seedling Station of Sichuan Province Chengdu610081;Forestry Bureau of Leshan District, Sichuan Province Leshan614000
  • Received:2002-03-07 Revised:1900-01-01 Online:2003-01-25 Published:2003-01-25

摘要:

研究了以巨桉(Eucalyptus grandis)优树的带芽茎段为外植体诱导丛生芽发生以及植株再生的过程,对培养过程中新芽及丛生芽的发生类型进行了探讨。通过正交实验及单因素试验,确定了巨桉快繁体系的最适培养条件:(1)初代培养基:S +BA0.5mg·L-1+NAA0.05mg·L-1+蔗糖3% ;(2)丛生苗诱导培养基:S +BA1.0mg·L-1+NAA0.0 5mg·L-1+蔗糖3%;(3)有效苗诱导培养基:S+BA0.5mg·L-1+NAA0.1mg·L-1+生物素2.0+蔗糖4%;(4)壮苗培养基:MS(铁盐、有机物1.5倍) +蔗糖4%;(5)生根培养基:1/2MS +ABT生根粉(1号) 1.0mg·L-1+蔗糖2%。

关键词: 巨桉, 芽器官, 离体培养, 快速繁殖

Abstract:

This paper mainly dealt with the study on shoot organogenesis culture in vitro and plantlet regeneration from sprout explants of Eucalyptus grandis. The organogenesis types of regeneration shoots and clump shoots were discussed. The optimal culture conditions were established by orthogonal tests and single factor tests as follows: (1)Initial media: S+0 5 mg·L-1BA+0.05 mg·L-1 NAA+3%sucrose;(2)Clump bud induction media: S+1.0 mg·L-1BA+0.05 mg·L-1 NAA+3% sucrose;(3)Efficiency seedling induction media: S+0.5 mg·L-1BA+0.1 mg·L-1 NAA+2.0 mg·L-1 biotin+3%sucrose;(4)Robust seedling media: MS(1.5 strength of Fe and organic compound)+4%sucrose;(5)Rooting media:1/2MS+1.0 mg·L-1 ABT+2%sucrose.

Key words: Eucalyptus grandis, Sprout, In vitro culture, Rapid propagation