Arabinogalactan-proteins stimulate somatic embryogenesis and plant propagation of Pelargonium sidoides.

Duchow, Stefanie, Dahlke, Renate I., Geske, Thomas, Blaschek, Wolfgang and Classen, Birgit (2016) Arabinogalactan-proteins stimulate somatic embryogenesis and plant propagation of Pelargonium sidoides. Carbohydrate Polymers, 152 . pp. 149-155. DOI 10.1016/j.carbpol.2016.07.015.

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Abstract

Root extracts of the medicinal plant Pelargonium sidoides, native to South Africa, are used globally for the treatment of common cold and cough. Due to an increasing economic commercialization of P. sidoides remedies, wild collections of root material should be accompanied by effective methods for plant propagation like somatic embryogenesis. Based on this, the influence of arabinogalactan-proteins (AGPs) on somatic embryogenesis and plant propagation of P. sidoides has been investigated. High-molecular weight AGPs have been isolated from dried roots as well as from cell cultures of P. sidoides with yields between 0.1% and 0.9%, respectively. AGPs are characterized by a 1,3-linked Galp backbone, branched at C6 to 1,6-linked Galp side chains terminated by Araf and to a minor extent by GlcpA, Galp or Rhap. Treatment of explants of P. sidoides with AGPs from roots or suspension culture over 5.5 weeks resulted in effective stimulation of somatic embryo development and plant regeneration.

Document Type: Article
Keywords: Pelargonium sidoides Arabinogalactan-protein Somatic embryogenesis
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.1016/j.carbpol.2016.07.015
ISSN: 0144-8617
Date Deposited: 16 Jan 2018 16:22
Last Modified: 16 May 2019 09:03
URI: http://oceanrep.geomar.de/id/eprint/41531

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