Forming Process of Gynandrium-like in <italic style="font-style: italic">Amomum villosum</italic>

Zhuo-hang HE; Hong CHEN; Li-yun TANG; Jing SU; Ming-xiao LI; Bing-ding LYU; Guo-zhen HE

doi:10.13422/j.cnki.syfjx.20200912

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Forming Process of Gynandrium-like in Amomum villosum

Pharmacy Fundamentals | 更新时间：2021-02-09

- Forming Process of Gynandrium-like in Amomum villosum
- Chinese Journal of Experimental Traditional Medical Formulae Vol. 26, Issue 9, Pages: 176-183(2020)
- 作者机构：
  
  1.广州中医药大学　中药学院，广州　 510006
  2.广东华南疫苗股份有限公司，广州　 510663
  3.华南农业大学　生命科学学院，广州　 510642
  4.阳春市砂仁试验示范场，广东阳春　 529600
  5.广州中医药大学　岭南中药资源教育部重点实验室，广州　 510006
- 作者简介：
- 基金信息：
- DOI：10.13422/j.cnki.syfjx.20200912
  CLC： R22; R289; R2-031; R284.2
- Received：06 November 2019，
  
  Published Online：16 January 2020，
  
  Published：05 May 2020
- 稿件说明：
移动端阅览
Zhuo-hang HE, Hong CHEN, Li-yun TANG, et al. Forming Process of Gynandrium-like in Amomum villosum[J]. Chinese journal of experimental traditional medical formulae, 2020, 26(9): 176-183.
DOI：

Zhuo-hang HE, Hong CHEN, Li-yun TANG, et al. Forming Process of Gynandrium-like in Amomum villosum[J]. Chinese journal of experimental traditional medical formulae, 2020, 26(9): 176-183. DOI： 10.13422/j.cnki.syfjx.20200912.

摘要

目的：

研究阳春砂小花假合蕊柱的形成过程。

方法：

将阳春砂小花自0.5 cm长度至开花后一天划分为8个生长时期，对小花鲜样解剖并制作石蜡切片，测定花药腔的高度，花粉囊裂口夹角，花粉囊缝隙宽度，花柱直径，花丝与唇瓣的夹角(

)，花丝与花药的夹角(

)。

结果：

花粉囊夹角在开花前无明显变化，开花时从32°缩小为17°。两对花粉囊间的缝隙宽度在第5时期增大至约0.29 mm，同时期的花柱直径约0.32 mm，两者比例达92%。相比开花前一天，开花时

角从83°减小为42°，

角从186°减小为147°。花丝的远轴侧比近轴侧多1至5层细胞，花柱的近轴侧比远轴侧多1至6层细胞。

结论：

远、近轴侧细胞结构的不对称性是花丝、花柱运动的基础。在第5时期，花粉囊间的缝隙增大至几乎与花柱等径，花柱运动嵌入花粉囊间。开花时花粉囊夹角缩小，将花粉囊间隙出口封闭，花柱留在花粉囊间，同时角

，

剧烈减小，雄蕊将雌蕊夹在其中向唇瓣弯曲，最终形成半包于唇瓣内的假合蕊柱结构。

Abstract

Objective:

To study the forming process of the gynandrium-like in

Amomum villosum

Method:

The flowerets were divided into 8 growth periods from 0.5 cm in length to the day after flowering. Fresh sample were anatomized

and paraffin sectioning was performed on the flowerets. The height of anther chamber

the pollen sac angles

the width of anther gap

the diameter of style

the filament-labellum angle (

)

and the filament-anther angle (

) were determined.

Result:

The angle of the pollen sac had no obvious change before flowering

but decreased from 32° to 17° after flowering. The width of anther gap increased to 0.29 mm in the 5

growth period

while the diameter of style was 0.32 mm in the same period

the ratio of them was 92%. Compared with the day before flowering

the angle

decreased from 83° to 42° during flowering

and the angle

decreased from 186° to 147°. In the filament

the abaxial side had 1 to 5 layers of cells more than the adaxial side. In the style

it was found that the adaxial side had 1 to 6 layers of cells more than the abaxial side.

Conclusion:

The asymmetry of the cell structure at abaxial and adaxial sides of the filament and style is the basis of the movement. In the 5

growth period

the width of anther gap increased almost to the size of style

so the style was able to slide in. When blossoming

the pollen sacs quickly squeezed to the gap in middle

and the entrance for style to access was blocked. Therefore

the style had to remain in the gap of the pollen sacs. Meanwhile

angles

and

drastically decreased

resulting in the stamen sandwiched the pistil and bending together toward the labellum. The gynandrium-like structure was formed.

关键词

Keywords

references

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Related Author

Ming-xiao LI

Shu-hui CHEN

Li-yun TANG

Jie XU

Zhuo-hang HE

Guo-zhen HE

Related Institution

College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine

Zhejiang Strong Pharmaceutical Co. Ltd.

College of Life Sciences, South China Agricultural University

Guangdong Yifang Pharmaceutical Co.Ltd.

Key Laboratory of Chinese Medicine Resources Under Ministry of Education, Guangzhou University of Chinese Medicine

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⁰

Forming Process of Gynandrium-like in Amomum villosum

DOI：10.13422/j.cnki.syfjx.20200912

摘要

Abstract

关键词

Keywords

references