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Understanding Seed and Protocorm Development in Orchids

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Orchid Propagation: From Laboratories to Greenhouses—Methods and Protocols

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Abstract

In this overview, the development of orchid seed and protocorm is summarized. Although the structural organization of seed and protocorm appears simple, information is presented indicating that they have developmental programs similar to and as complex as other flowering plants. The varied suspensor morphologies, the presence of cuticular material covering the surface of the embryo, and the delicate seed coat structure ensure embryo survival, albeit unusual. The embryo is programmed to form a protocorm. The protocorm cells are destined to form a shoot apical meristem at the apical (chalazal) end and to house the symbiont at the basal (micropylar) end of a protocorm. Changes in protocorms during asymbiotic and symbiotic seed germination are discussed.

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Authors and Affiliations

  1. Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada

    Edward C. Yeung

  2. Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China

    Yuan-Yuan Li

  3. Biology Department, National Museum of Natural Science, Taichung, Taiwan, Republic of China

    Yung-I Lee

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  1. Edward C. Yeung
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  2. Yuan-Yuan Li
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  3. Yung-I Lee
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Correspondence to Edward C. Yeung .

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Editors and Affiliations

  1. Biology Department, National Museum of Natural Science, Taichung, China

    Yung-I Lee

  2. Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada

    Edward Chee-Tak Yeung

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Yeung, E.C., Li, YY., Lee, YI. (2018). Understanding Seed and Protocorm Development in Orchids. In: Lee, YI., Yeung, ET. (eds) Orchid Propagation: From Laboratories to Greenhouses—Methods and Protocols. Springer Protocols Handbooks. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-7771-0_1

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  • DOI: https://doi.org/10.1007/978-1-4939-7771-0_1

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