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中国农学通报 ›› 2004, Vol. 20 ›› Issue (2): 12-12.

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影响长寿花离体培养及植株再生的几个因素

黄海帆 李保印 李 平   

  • 出版日期:2004-04-05 发布日期:2004-04-05

Several Factors Influencing in Vitro Culture and Plantlet Regeneration of Kalanchoe blossfediana

Huang Haifan Li Baoyin Li Ping   

  • Online:2004-04-05 Published:2004-04-05

摘要: 对长寿花茎段培养7~8d,部分茎段腋芽萌动。30d培养结果表明,芽诱导的最佳培养基是:MS+6-BA1.0mg?l-1+NAA0.5 mg?l-1;芽伸长的最佳培养基是:1/4MS;形成有效节的最佳培养基是:MS。继代培养中各培养基上无叶茎段均较带叶茎段萌芽率高。在5、6、7号培养基上,叶片培养9d时,从叶柄基部开始形成不定芽,在其它培养基上,14d才开始有不定芽形成。30d培养结果还表明,诱导叶片再生不定芽的最佳培养基是:1/2MS+6-BA1.0 mg?l-1。诱导根生长的最佳培养基是:1/4MS。

Abstract: Having cultured the stem sections of Kalanchoe blossfeldiana in vitro for7-8days, the axillary buds of explants can germinate. The result of culturing for 30 days showed that the most suitable medium to induce buds was MS+6-BA1.0+NAA0.5 mg?l-1, the most suitable one to make the bud stretch was 1/4MS, and to form available knots was MS. During the continuing culture, the germinating rate of stem sections with no leaves was higher than that of the sections with leaves on all the above media. Adventitious buds began to form at the base of petiole after having been cultured for 9 days on the media No.5,6,7. On the other media, however, they only began to form after being cultured for 14days. Simultaneously, the most suitable medium to induce the leaves to regenerate adventitious buds was 1/2MS+6-BA1.0 mg?l-1, and to induce the roots to grow was 1/4MS.