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园艺学报 ›› 2007, Vol. 34 ›› Issue (6): 1503-1508.

• 观赏植物 • 上一篇    下一篇

凤仙花花逆转突变体的组织学研究

张秀丽1, 李劲涛1, 杨 军1,2*, 汤泽生1

  

  1. 1 西华师范大学生命科学学院,四川南充 637002; 2 西华师范大学珍稀动植物研究所,四川南充 637002)
  • 收稿日期:2007-04-04 修回日期:2007-06-18 出版日期:2007-12-25 发布日期:2007-12-25
  • 通讯作者: 杨军

Histological Investigation on Floral Reversion of Impatiens balsamina L.

ZHANG Xiu-li1, LI Jin-tao1, YANG Jun1,2*, and TANG Ze-sheng1   

  1. (1 College of Life Sciences, China West Normal University, Nanchong, Sichuan 637002, China; 2 Institute of Rare Animals and Plants, China West Normal University, Nanchong, Sichuan 637002, China)
  • Received:2007-04-04 Revised:2007-06-18 Online:2007-12-25 Published:2007-12-25

摘要: 从经过卫星搭载的凤仙花种子后代中获得了可遗传的仅顶花叶化的花逆转突变体。该突变体保持了花的基本结构,但是不同程度地出现了花瓣增厚、变绿、出现锯齿等现象,雄蕊也片状化、早衰或完全消失。组织学观察发现,在叶化花瓣中出现了叶绿体和栅栏组织。统计分析结果表明,叶化花瓣与正常花瓣相比组织结构上确实发生了显著变化。

关键词: 凤仙花, 花逆转, 石蜡切片, 雄蕊的瓣化, 航天诱变

Abstract: The seeds of Impatiens balsamina L. were treated by space flight, and then heritable mutant plants with floral reversion occurring only in apical flower were obtained in the descendant generation. The mutants kept the basical floral structures, however, showed thicker green petals with serrate margin to some extent. Their stamens became petaloid, prematured even diminished. Histological investigation revealed that chloroplast and palisade tissue appeared in the leaf-like petals. Statistical analysis suggested that significant difference existed between the leaf-like petals and normal petals.

Key words: Impatiens balsamina L., Flower reversion, Paraffin cut, Stamens stimulant of petals, Space flight

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