Quantitative assessment of tuber contamination by pectolytic erwinia and its possible use in the prediction and control of blackleg
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A Most Probable Number Technique based on the use of carbohydrate-free McConkey broth and crystal violet pectate agar for the quantification of tuber-borne pectolytic erwinia has been developed. The population of the organisms on naturally contaminated tubers has been shown to be log-normally distributed. The possibility of using tuber contamination and standards for tuber quality for the prediction and control of blackleg is explored.
Additional keywordssampling presumptive count enrichment medium standards
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