Abstract
Streptomyces scabies, causative agent of common scab of potato, produces the phytotoxins concanamycin and thaxtomin. In a potato tuber slice assay to study the contribution of concanamycins to lesion development, concanamycin A had weak necrosis-inducing activities; >10× the amount of thaxtomin A was needed to produce equivalent lesion severity. Concanamycins were detected in tubers inoculated with S. scabies, which caused deep-pitted lesions but not in those inoculated with Streptomyces acidiscabies, which caused corky, raised lesions. In field-grown, diseased potatoes, concanamycin content tended to be higher in tubers with deep-pitted lesions than in those with corky, raised lesions.
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Natsume, M., Tashiro, N., Doi, A. et al. Effects of concanamycins produced by Streptomyces scabies on lesion type of common scab of potato. J Gen Plant Pathol 83, 78–82 (2017). https://doi.org/10.1007/s10327-017-0696-9
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DOI: https://doi.org/10.1007/s10327-017-0696-9