Activities of Solanum torvum Extracts on Colletotrichum musae and Colletotrichum gloeosporioides
The methanol extract of Solanum torvum Swartz showed excellent antibacterial activity, To make clear the active ingredients distribution of the methanol extracts of S. torvum The inhibitory activity of different solvent extraction of methanol extract of S. Torvum and the extracts of different organs of S. Torvum against C.musae and C. gloeosprioides were studied by growth rate method. It was found that Chloroform extraction were with excellent inhibitory activity than other extracted materials, At the concentration of 5 mg/mL, the inhibition rates of Chloroform extraction were 64.50% and 73.28% respectively against both pathogens, EC50were separately 2.104 9,1.642 6 mg/mL; At the concentration 1 mg/mL, the inhibitory rate of extracts of leaves were 82.70% and 84.41%respectively, EC50were separately 0.379 8 mg/mL, 0.195 2 mg/mL; The inhibition rates of extracts of stem were 68.27%and 71.54% respectively, EC50were separately 0.476 4 mg/mL, 0.431 4 mg/mL. The activity Study about methanol extracts from different parts of S. torvum shows that the extract of leaves was the best against both pathogens,followed by stem, the worst was root.