Council Directive 93/85/EECDangos y teitl llawn

[F1 1. Buffers for extraction procedure U.K.

1.1. Extraction buffer (50 mM phosphate buffer, pH 7,0) U.K.

This buffer is used for extraction of the bacterium from plant tissues by homogenisation or shaking.

Na 2 HPO 4 (anhydrous)	4,26 g
KH 2 PO 4	2,72 g
Distilled water	1.00 L

Dissolve ingredients, check pH and sterilise by autoclaving at 121 °C for 15 min.

Additional components may be useful as follows:

a For use with homogenisation extraction method.
	Purpose	Quantity (per L)
Lubrol flakes	Deflocculant a	0,5 g
DC silicone antifoam	Anti-foam agent a	1,0 ml
Tetrasodium pyrophosphate	Anti-oxidant	1,0 g
Polyvinylpyrrolidone- 40 000 (PVP-40)	Binding of PCR inhibitors	50 g

1.2. Pellet buffer (10 mM phosphate buffer, pH 7,2) U.K.

This buffer is used for resuspension and dilution of potato tuber heel-end core extracts following concentration to a pellet by centrifugation.

Na 2 HPO 4 .12H 2 O	2,7 g
NaH 2 PO 4 .2H 2 O	0,4 g
Distilled water	1,00 L

Dissolve ingredients, check pH and sterilise by autoclaving at 121 °C for 15 min.]

Textual Amendments

F1 Substituted by Commission Directive 2006/56/EC of 12 June 2006 amending the Annexes to Council Directive 93/85/EEC on the control of potato ring rot.