| 吊石苣苔和盾叶粗筒苣苔的种子萌发及染色体数目观察* |
| |
| 引用本文： | 赵大克,鲁元学,石景峰,管开云.吊石苣苔和盾叶粗筒苣苔的种子萌发及染色体数目观察*[J].云南农业大学学报,2010,25(2):173-178. |
| |
| 作者姓名： | 赵大克 鲁元学 石景峰 管开云 |
| |
| 作者单位： | 1云南农业大学 园林园艺学院，云南 昆明 650201；;2中国科学院 昆明植物研究所，云南 昆明 650204 |
| |
| 摘 要： | 吊石苣苔（Lysionotus pacuciforus）和盾叶粗筒苣苔(Briggsia longgipes)为苦苣苔科（Gesneriaceae）多年生草本植物，具有较高的观赏价值。采用滤纸搭桥培养皿内萌发方法研究了其种子萌发特性；发现吊石苣苔在萌发过程中种皮颜色逐渐变淡，胚根的顶端优势不明显；用10%的次氯酸钠消毒可消除二者萌发过程中的霉变现象；吊石苣苔种子成活率最高为9500%，盾叶苣苔的4500%。并观察了二者的染色体数目；吊石苣苔的为2n=32，盾叶粗筒苣苔的为2n=34，其中盾叶苣苔染色体数目为首次报道。
|
| 关 键 词： | 吊石苣苔 盾叶粗筒苣苔 种子萌发 染色体数目观察 |
Seed Germination and Chromosome Numbers of Lysionotus pacuciforus and Briggsia longgipes |
| |
ZHAO Da-ke,LU Yuan-xue,SHI Jing-feng,GUAN Kai-yun
.Seed Germination and Chromosome Numbers of Lysionotus pacuciforus and Briggsia longgipes[J].Journal of Yunnan Agricultural University,2010,25(2):173-178. |
| |
| Authors: | ZHAO Da-ke LU Yuan-xue SHI Jing-feng GUAN Kai-yun
|
| |
| Institution: | 1College of Landscape and Horticulture，Yunnan Agricultural University，Kunming 650201，China；2Kunming Institute of Botany，Chinese Academy of Sciences，Kunming 650204，China |
| |
| Abstract: | Lysionotus pacuciforus and Briggsia longgipes are the perennials with higher ornamental values in the family Gesneriaceae.Seed germination was investigated by the filter papers bypass placed at the Perri dishes.L.pacuciforus′ seeds coat color turned light gradually and radicles lost their apical dominance in its germination.Mouldy existing in L.pacuciforus and B.longgipes could be solved by sterilization with 10% sodium hypochlorite solution and their maximum seed surviving frequencies were 9500%，4500 respectively.The chromosomes number were checked，2n=32 for L.pacuciforus，2n=34 for B.longgipes respectively.Moreover，the chromosome number of B.longgipes was reported for the fist time. |
| |
| Keywords: | Lysionotus pacuciforus Briggsia longgipes seeds germination chromosomes number |
|
| 点击此处可从《云南农业大学学报》浏览原始摘要信息 |
| 点击此处可从《云南农业大学学报》下载免费的PDF全文 |
