Prenylated flavonoids and total extracts from Morus nigra L. root bark inhibit in vitro growth of plant pathogenic fungi

Total extracts and kuwanon G from Morus nigra root bark showed antifungal activity against several phytopathogenic fungi, with minimal inhibitory concentration (MIC50) ranging from 32 to 128 g/ml and from 16 to 64 g/ml, respectively. Acetonic extracts inhibited 60% B. cinerea biofilm formation at concentration of 128 g/ml.