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Somatic embryogenesis of pepper in bioreactors: a study of bioreactor type and oxygen-uptake rates

  • Biotechnology
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Abstract

Somatic embryogenesis of pepper, Capsicum annuum var. Ace, was performed in an airlift bioreactor and a magnetically stirred hanging-stirrer-bar bioreactor, each with 1.81 working volume. All stages of embryogenesis, from growth of embryogenic suspension cultures to embryo maturation, were performed in the bioreactor as a series of drain-and-fill batches, keeping the cells and embryos in the bioreactor all the time. When two bioreactors were compared in terms of percentage embryogenesis and visually observed quality of mixing, under different rates of aeration and stirring, the performance of the magnetically stirred bioreactor was better. The effects of inoculum type and inoculum level on the percentage embryogenesis were also investigated. Under the optimum conditions, embryogenesis was 98%, with 57 embryos/ml. Oxygen-uptake rates of cultures in different stages of embryogenesis were different, the highest being in the embryogenic suspension culture and the lowest during embryo maturation.

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Author notes

  1. S. Buyukalaca

    Present address: Department of Horticulture, Faculty of Agriculture, University of Cukurova, 0130, Adana, Turkey

Authors and Affiliations

  1. Department of Chemical Engineering, University of Manchester Institute of Science and Technology, PO Box 88, M60 1QD, Manchester, UK

    F. Mavituna & S. Buyukalaca

Authors
  1. F. Mavituna
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  2. S. Buyukalaca
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Mavituna, F., Buyukalaca, S. Somatic embryogenesis of pepper in bioreactors: a study of bioreactor type and oxygen-uptake rates. Appl Microbiol Biotechnol 46, 327–333 (1996). https://doi.org/10.1007/BF00166225

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  • DOI: https://doi.org/10.1007/BF00166225

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