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Facultative parasites and host respiration II. Diseased tissue from which the pathogen has been removed

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Summary

Aseptic tissue cultures of Crown-gall ofScorzonera hispanica L. andHelianthus tuberosus L. have a higher rate of respiration than tissue cultures of the respective healthy tissue. Cultures of healthy tissue ofS. hispanica which have been subjected to high concentrations of auxin (napthalene acetic acid) until they reached an ‘habituated’ stage in which they could grow without addition of the auxin, show an increased respiration similar to that of ‘Crown-gall’ tissue cultures. It is concluded that the respiratory increase shown by ‘Crown-gall’ tissue is not due to the retentive effect of a respiratory toxin alone but due also to a pathogen induced auxin metabolism.

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Authors and Affiliations

  1. Botany Dept., Fac. of Science, Univ. of Khartoum, Sudan

    G. M. Weir

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  1. G. M. Weir
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Additional information

This work formed part of a Ph. D. thesis submitted to the Univ. of London, July 1961.

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Weir, G.M. Facultative parasites and host respiration II. Diseased tissue from which the pathogen has been removed. Mycopathologia et Mycologia Applicata 18, 189–193 (1962). https://doi.org/10.1007/BF02051590

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  • DOI: https://doi.org/10.1007/BF02051590

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