(AGI) Rome, June 26 - The main European exchanges closed on anegative note, discouraged by Wall Street. In London, the FTSE100 lost 0.1 percent, Frankfurt dropped 0.7 percent and Parisfell 0.5 percent. Piazza Affari fared slightly better. The FTSEMIB plunged 0.39 percent closing at 21,384 points and the AllShare backpedalled 0.30 percent to 22,701 points. (AGI) . .