Council Directive 93/85/EECShow full title

Council Directive 93/85/EEC of 4 October 1993 on the control of potato ring rot

[F15. Hugh, R. and Leifson, F., 1953. The taxonomic significance of fermentative versus oxidative metabolism of carbohydrates by various gram-negative bacteria. J. Bact., 66, 24-26.] U.K.
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[F1Commercially available solutions and staining kits can also be used.]