Post-wounding changes in the oxygen consumption by slices from tubers of several potato cultivars |
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Authors: | E Lojkowska |
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Institution: | (1) Institute for Potato Research, 76-009 Bonin, Poland |
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Abstract: | Summary Potato (Solanum tuberosum L.) cultivars differed markedly in their susceptibility to autolysis during the post-wounding period. Slices from cultivars
susceptible to autolysis showed higher respiration rates than those sampled from resistant cultivars. The higher oxygen consumption
of these cultivars was inhibited by imidazole. Application of the respiration inhibitors, KCN and SHAM, to the slices showed
that the capacity of the alternative electron transport pathway was relatively high during the post-wounding period in fresh
slices of cultivars resistant to autolysis. The capacity of that pathway was near zero in the susceptible tissues. Aging promoted
the development of KCN-resistant respiration in both types of cultivars. |
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Keywords: | aging autolysis KCN-resistant respiration |
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