| Flower Development and Anatomy of Agapanthus praecox ssp. orientalis （Leighton） Leighton |
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| 作者姓名： | ZHANG Di SHEN Xiao-hui ZHUO Li-huan |
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| 作者单位： | [1]Department of Ornamental Plant and Horticulture, College of Landscape Architecture, Northeast Forestry University, Harbin 150040, P.R. China [2]Department of Landscape Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, P.R.China |
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| 摘 要： |
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| 关 键 词： | 花药发育 SSP 腊梅 解剖 侧柏 花芽分化 原基分化 时间间隔 |
| 收稿时间： | 19 March 2010 |
Flower Development and Anatomy of Agapanthus praecox ssp. orientalis (Leighton) Leighton |
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| ZHANG Di,SHEN Xiao-hui,ZHUO Li-huan.Flower Development and Anatomy of Agapanthus praecox ssp. orientalis (Leighton) Leighton[J].Agricultural Sciences in China,2011,10(9):1365-1373. |
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| Authors: | ZHANG Di SHEN Xiao-hui ZHUO Li-huan |
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| Institution: | 1. Department of Ornamental Plant and Horticulture, College of Landscape Architecture, Northeast Forestry University, Harbin 150040,P. R. China
2. Department of Landscape Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, P.R.China |
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| Abstract: | Floral buds of Agapanthus praecox ssp. orientalis were observed under dissecting and optical microscope to characterize floral organs development and to study relationships between anther development and microsporogenesis. Floral organs differentiation was comprised of 6 distinct stages including nought differentiation, inflorescence bud differentiation, floret primordia differentiation, tepal primordia differentiation, stamen primordia differentiation, and pistil primordia differentiation. Six tepals differentiated almost simultaneously which cross arranged in space and appeared in hexagonal distribution pattern. Six stamens were differentiated inside the tepals at the same time. Finally, 3 carpel primordia differentiated and formed syncarpous pistil. The whole process of floral bud differentiation took approximately 40 d with the first 3 stages developing more slowly than the later 3 stages. Morphology and color of the anther underwent obvious changes during the period between stamen primordia differentiation and anther maturation. Microspores also underwent significant development during this same interval. The relationship between the process of microsporogenesis and anther development has already been made clear by the squash technique. |
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| Keywords: | Agapanthus praecox ssp orientalis floral organs floral bud differentiation microsporogenesis |
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