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Effect of temperature shock on nuclear phenomena in microspores ofNicotiana tabacum and consequently on plantlet production

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Summary

In cytological investigations on the effect of cold-treatment in anther cultures ofNicotiana tabacum var. Badischer Burley, anthers were examined immediately after harvest, after 3 days of cold-incubation (5 °C) of the cultured anthers and after 4 more days of culture at 28 °C. These anthers were compared with untreated anthers at corresponding times. It was found that in those subjected to cold-treatment, developmental stages lagged behind comparable controls. A range of cytological types was seen in the seven day cultures. The differences in cytology and percentage viability were found to be directly related to differences in plantlet production between the two sets of cultures after incubation of a further 7 weeks. The delay in development and consequent increase in number of viable units is suggested as being the essential mechanism whereby haploid production is increased by cold-treatment.

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Author notes

  1. E. Heberle

    Present address: Institut für Pflanzenphysiologie und Zellbiologie, Freie Universität Berlin, Deutschland

  2. E. J. Duncan

    Present address: Biological Sciences, University of the West Indies, Trinidad

Authors and Affiliations

  1. Institut für Pflanzenphysiologie und Zellbiologie, Freie Universität Berlin, Deutschland

    E. J. Duncan

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  1. E. J. Duncan
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  2. E. Heberle
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Additional information

Part of an investigation conducted under the contract No. 117-72-1 Bio D of the Biology Division of European Communities.

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Duncan, E.J., Heberle, E. Effect of temperature shock on nuclear phenomena in microspores ofNicotiana tabacum and consequently on plantlet production. Protoplasma 90, 173–177 (1976). https://doi.org/10.1007/BF01276486

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  • DOI: https://doi.org/10.1007/BF01276486

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