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Type: Journal article
Title: Cytological analysis of ginseng carpel development
Author: Silva, J.
Kim, Y.
Xiao, D.
Sukweenadhi, J.
Hu, T.
Kwon, W.
Hu, J.
Yang, D.
Zhang, D.
Citation: Protoplasma, 2017; 254(5):1909-1922
Publisher: Springer
Issue Date: 2017
ISSN: 0033-183X
Statement of
Jeniffer Silva, Yu-Jin Kim, Dexin Xiao, Johan Sukweenadhi, Tingting Hu, Woo-Saeng Kwon, Jianping Hu, Deok-Chun Yang, Dabing Zhang
Abstract: Panax ginseng Meyer, commonly known as ginseng, is considered one of the most important herbs with pharmaceutical values due to the presence of ginsenosides and is cultivated for its highly valued root for medicinal purposes. Recently, it has been recognized that ginseng fruit contains high contents of triterpene such as ginsenoside Re as pharmaceutical compounds. However, it is unclear how carpel, the female reproductive tissue of flowers, is formed during the three-year-old growth before fruit is formed in ginseng plants. Here, we report P. ginseng carpel development at the cytological level, starting from the initial stage of ovule development to seed development. The carpel of P. ginseng is composed of two free stigmas, two free styles, and one epigynous bilocular ovary containing one ovule in each locule. Based on our cytological study, we propose that the female reproductive development in P. ginseng can be classified into seven stages: early phase of ovule development, megasporogenesis, megagametogenesis, pre-fertilization, fertilization, post-fertilization, and seed development. We also describe the correlation of the female and male gametophyte development and compare morphological differences in carpel development between ginseng and other higher plants. One unique feature for ginseng seed development is that it takes 40 days for the embryo to develop to the early torpedo stage and that the embryo is small relative to the seed size, which could be a feature of taxonomic importance. This study will provide an integral tool for the study of the reproductive development and breeding of P. ginseng.
Keywords: Panax; Flowers; Triterpenes; Ginsenosides
Rights: © Springer-Verlag Wien 2017
RMID: 0030064592
DOI: 10.1007/s00709-017-1081-4
Appears in Collections:Environment Institute Leaders publications

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