Abstract
Despite the largely maternal inheritance of plastid genomes, the risk of transgene dissemination from transplastomic plants can limit the scope for field cultivation. There is a need for a cost-effective, scalable process to grow large quantities of transplastomic plant biomass for biosynthesis of biopharmaceuticals and other high-value heterologous proteins. Temporary immersion culture is a means of achieving this under fully contained conditions. This method describes the organogenesis of transplastomic Nicotiana tabacum callus in RITA® temporary immersion bioreactors to produce rootless leafy biomass, and subsequent total soluble protein extraction, SDS-PAGE, and Western immunoblot analysis of heterologous protein expression. This method can be used for propagation of plastid or nuclear transformants, though is especially suitable for transplastomic biomass, as organogenesis leads to greater expression and accumulation of transplastomic proteins due to increases in chloroplast number and size.
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Barretto, S., Michoux, F., Nixon, P.J. (2016). Temporary Immersion Bioreactors for the Contained Production of Recombinant Proteins in Transplastomic Plants. In: MacDonald, J., Kolotilin, I., Menassa, R. (eds) Recombinant Proteins from Plants. Methods in Molecular Biology, vol 1385. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-3289-4_11
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DOI: https://doi.org/10.1007/978-1-4939-3289-4_11
Publisher Name: Humana Press, New York, NY
Print ISBN: 978-1-4939-3288-7
Online ISBN: 978-1-4939-3289-4
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