# Council Directive 93/85/EEC of 4 October 1993 on the control of potato ring rot, Division: Note:

Extent: E+W+S+N.I.

Inhibition of the PCR may be suspected if the expected amplicon is obtained from the positive control sample containing C. m. subsp. sepedonicus in water but negative results are obtained from positive controls with C. m. subsp. sepedonicus in potato extract. In multiplex PCR protocols with internal PCR controls, inhibition of the reaction is indicated when neither of the two amplicons are obtained.

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Source: https://www.legislation.gov.uk/eudr/1993/85/annex/I/division/6/division/6.3/division/6.3.4/annotation/1 (the official version)
Page: https://openlegislation.uk/eu-directive-1993-85/annex-I/division-6/division-6.3/division-6.3.4/annotation/1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.