Abstract
The consumption of oxygen initiated by KCN in an autoclaved sugar-containing rinse medium with protoplasts is described. The effect of autoclaving on several sugars was examined. Fructose solutions, followed in decreasing order by glucose, sucrose and sorbitol, were found to contain the largest amount of degraded products that could react with oxygen in the presence of KCN. Mannitol was found to be stable under the autoclaving conditions used in this investigation. KCN generally has an inhibitory effect on respiration, but in some plant tissues, respiration is stimulated by it. Under certain circumstances the degradation artefact described here may confuse interpretation of the results of respiration measurements. The use of autoclaved media containing sugars should be avoided in respiration studies that involve the application of KCN.
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Abbreviations
- SHAM:
-
salicylhydroxamic acid
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Communicated by A. M. Boudet
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Hsiao, KC., Bornman, C.H. Cyanide-initiated oxygen consumption in autoclaved culture medium containing sugars. Plant Cell Reports 8, 90–92 (1989). https://doi.org/10.1007/BF00716846
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DOI: https://doi.org/10.1007/BF00716846