Abstract

評估分析無患子(Sapindus mukorossi Gaertn.)、穿心蓮(Andrographis paniculata Nees.)等兩種植物之萃取液、及81.3%嘉賜銅可濕性粉劑對茄科植物細菌性斑點病菌(Xanthomonas axonopodis pv. vesicataria XVT40)之抗菌活性。結果顯示無患子(100倍,v/v)對引起茄科植物細菌性斑點病之病原菌株(Xanthomonas axonopodis pv. vesicataria XVT40)及其他Xanthomonas axonopodis pv. Citri XL1菌株的抗菌活性,顯著地較81.3%嘉賜銅(Kasugamycin and Copper Oxychloride)化學藥劑在推薦濃度下之抗菌活性爲佳;而穿心蓮之甲醇萃取液(50 mg/ml)對茄科植物細菌性斑點病之菌株(Xanthomonas axonopodis pv. vesicataria XVT40)抗菌活性則與化學藥劑之抗菌活性相近。無患子及穿心蓮萃取液對Xanthomonas axonopodis pv. vesicataria XVT40生長的最低抑制濃度(MIC)分別爲5 mg/mL及10 mg/mL。

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