杂环脲类细胞分裂素对桉树不定芽增殖的影响  

Effects of the Heterocyclic Urea Cytokinin(CTK) Applied to the Multiplication of Eucalyptus's Adventitious Bud

作　　者：李再峰[1] 叶小平[1] 何文强[1] 黄麒参 罗富英[1] 周文 

机构地区：[1]湛江师范学院自然科学与技术研究中心,广东湛江524048 [2]湛江市果树蔬菜研究所,524000

出　　处：《湛江师范学院学报》2006年第6期62-65,共4页Journal of Zhanjiang Normal College

基　　金：国家星火项目(2004EA780043);广东省科技攻关项目(2005B20801006);湛江市湛财企〔2003〕104号资助项目

摘　　要：在基本培养基1/2MS中,加入不同浓度的杂环脲类植物细胞分裂素(CTK),对桉树组培苗不定芽增殖进行应用试验研究,结果表明:CTK0.5 mg/L、1.0 mg/L、2.0 mg/L、5.0 mg/L和对照CK(1/2MS+6-BA+NAA)在培养3周后使桉树组培续代芽增殖率分别为654.2%、540.0%、325.0%、307.1%和316.7%.说明CTK可以代替6-BA进行桉树组培苗不定芽增殖,提高桉树组培苗的出芽率,并能使长出的芽变得粗壮,继代芽叶片增大,其中浓度为0.5mg/L时效果最为显著.With 1/2MS as basic medium, different concentration heterocyclic urea cytokinin （CTK） were added in the experiment about the growth of the Eucalyptus Tissue Culture bud. The study showed that CTK can advance the ratio of propagating eucalyptus tissue culture bud, which grows stronger, and can also enlarge the leaf of Eucalyptus＇ s adventitious bud. The CTK with 0.5 mg/L was the best to the bud proliferation growth.

关 键 词：杂环脲类 植物细胞分裂素 按树 不定芽 增殖 

分 类 号：Q946[生物学—植物学]