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园艺学报 ›› 2013, Vol. 40 ›› Issue (10): 2033-2038.

• 研究报告 • 上一篇    下一篇

鹤顶兰四倍体植株的诱导与鉴定

李豆豆1,刘芝龙2,黄明忠2,陈积天1,唐燕琼1,*,杨光穗2,*   

  1. (1海南大学热带作物种质资源保护与开发利用教育部重点实验室,海南大学农学院,海口 570228;2中国热带农业科学院热带作物品种资源研究所,海南儋州 571737)
  • 收稿日期:2013-07-05 出版日期:2013-10-25 发布日期:2013-10-25

Induction and Determination of Tetraploid Plants of Phaius tankervilleae

LI Dou-dou1, LIU Zhi-long2,HUANG Ming-zhong2,CHEN Ji-tian1,TANG Yan-qiong1,*,and YANG Guang-sui2,*   

  1. (1Key Laboratory of Protection and Development Utilization of Tropical Crop Gemplasm Resources,Hainan University,Ministry of Education;College of Agronomy,Hainan University,Haikou 570228,China;2Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences,Danzhou,Hainan 571737,China)
  • Received:2013-07-05 Online:2013-10-25 Published:2013-10-25

摘要: 以鹤顶兰原球茎为材料,使用秋水仙素进行了四倍体的离体诱导。结果表明,采用秋水仙素浸泡法可以诱导鹤顶兰原球茎发生倍性变化,含0.02%秋水仙素的“花宝一号”溶液浸泡处理6 d诱导率最高,达22.5%。细胞学鉴定发现,诱变成活植株中有3株为四倍体,其植株形态、气孔大小、气孔密度与二倍体存在差异,细胞核明显增大。

关键词: 鹤顶兰, 秋水仙素, 四倍体, 原球茎

Abstract: Tetraploids of Phaius tankervilleae were induced through the treatment of protocorms with colchicine in vitro. The results showed that ploidy levels of protocorms changed with colchicine soaking and the highest induction rate of 22.5% was obtained by immersing protocorms into 0.02% colchicine solution for 6 days. Cytological determination of regenerated plants indicated that three tetraploid plantlets were obtained among mutated plants survived,and the morphology,the number and size of stomata of the mutants were different from those of the diploid plants,with obviously bigger nucleus.

Key words: Phaius tankervilleae, colchicine, tetraploid, protocorm

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