Floweret Configuration Characters of the Medicinal Plant Amomun villosum

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  • 1College of Chinese Traditional Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China

    2Key Laboratory of Chinese Medicine Resources of Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China;

    3Dongguan Dongtang Group Company Limited, Dongguan 523243, China

    4Yangchun Field Test and Demonstration of Amomum villosum, Yangchun 529600, China

    5Guangzhou Baiyunshan Mingxing Pharmaceutical Company Limited, Guangzhou 510250, China

    6College of Life Science, South China Agricultural University, Guangzhou 510642, China

Received date: 2013-09-24

  Revised date: 2014-01-26

  Online published: 2014-06-03

Abstract

Flower configuration is related to the species of pollinators. The special configuration of the Amomun villosum floweret may limit the number of pollinator species. To understand the floweret configuration of A. villosum, we developed a new method for finding the proper pollination route and increasing yield. Here we report the method and results for the configuration characters of three A. villosum cultivars: Changguo, Yuanguo and Zhonghua. The longitudinal (LDgl) and transverse (TDgl) distances between the gynandrium-like and labellum were measured by stereomicroscopy. The floweret was anatomized before evaluating distances. The labellum of a blossoming floweret was cut along the thickest and colored zone, which resulted in a plane composed of the edges of gynandrium-like and cutting surface. The plane was placed upright to the lens of the stereomicroscope for imaging. The distances were evaluated on the image by use of Qcapture Pro 6.0.0412. The TDgl of Zhonghua was shortest, with no difference in LDgl among the 3 cultivars. The angle between the filament and labellum or anther was named α or β. We created a model of gynandrium-like stance by evaluating angles of α and β. The level of LDgl or TDgl depends on the standing extent of gynandrium-like. The value (γ) of sum of α and β is a cultivar characteristic parameter of A. villosum. We measured the longest length (Lan) and widest width (Wan) of pollen sac. Lan ranged from long to short in the order of Zhonghua, Changguo and Yuanguo, with no difference in Wan,. The difference in Lan is another cultivar characteristic of A. villosum. The stigma is cup-shaped and the size of the mouth was measured. The mouth area was larger for Changguo than Yuanguo, with no difference between Zhonghua and Changguo or Yuanguo. The distance between the tops of stigma and anthers (Dsp) was measured. Stigma mouth sizes were higher than anther tops. The Dsp was lower for Yuanguo than Changguo and Zhonghua, with no difference between Changguo and Zhonghua.

Cite this article

Guozhen He, Wei Gao, Jing Su, Jinkun Li, Liyun Tang . Floweret Configuration Characters of the Medicinal Plant Amomun villosum[J]. Chinese Bulletin of Botany, 2014 , 49(3) : 313 -321 . DOI: 10.3724/SP.J.1259.2014.00313

References

陈蔚文 (2010). 岭南本草(一). 广州: 广东科技出版社. pp. 297-328.
陈锡沐 (2002). 南方名贵药材栽培与加工. 广州: 广东科技出版社. pp. 160-180.
陈绪超, 李庆军 (2008). 3种豆蔻属植物的异交率检测初报.云南大学学报(自然科学版) 30, 531-534.
段立胜, 张丽霞, 彭建明, 马洁 (2009). 西双版纳阳春砂仁种质资源调查初报. 时珍国医国药 20, 627-628.
高江云, 夏永梅, 黄加元, 李庆军 (2006). 中国姜科花卉. 北京: 科学出版社. pp. 75.
国家药典委员会 (2010). 中国药典(I部). 北京: 化学工业出版社. pp. 236-237.
罗献瑞 (1992). 实用中草药彩色图集. 广州: 广东科技出版社. pp. 382-385.
彭建明, 李荣英, 李戈, 王艳芳 (2012). 阳春砂仁授粉特性与传粉昆虫的研究. 云南中医学院报35, 51-55.
汤丽云, 何国振, 苏景, 徐鸿华 (2012). 道地春砂仁产业发展的策略研究. 中国农学通报 28, 94-99.
Wang YQ, Zhang DX, Renner, SS, Chen, ZY (2004). Botany: A new self-pollination mechanism. Nature 43l, 39-40.
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