【摘要】 从黄花夹竹桃的根、茎、叶中分离出内生细菌13株,以小麦赤霉(Fusarium graminearum)、番茄早疫(Alternaria sclani)、番茄灰霉(Botrytis cinerea)3种常见植物致病真菌以及3种具有代表性的细菌,即金黄色葡萄球菌(Staphyllococcus aureus)、大肠杆菌(Escherichia col-i)、枯草芽孢杆菌(Bacillus subtilis)为受试菌,对其进行抑菌活性的测定。结果表明:内生细菌G2、Y1对受试植物病原真菌有较好的抑菌活性;内生细菌G1、G2、G3、G4对受试细菌具有普遍的抑菌作用。更多还原

【Abstract】 13 strains of endophytic fungi were isolated from the root,stem and leaf of Thevetia peruviana.The anti-baterical activity of the strains was determined with three phytopathogenic fungus: Fusarium graminearum schw,Alternaria sclani and Botrytis cinerea and three ordinary bacteria: Staphyllococcus aureus,Escherichia coli and Bacillus subtilis.The results showed that the strains G2 and Y1 had better anti-baterical activity against phytopathogenic fungus and the strains G1,G2,G3 and G4 had widely anti-bacterial activity against the pathogenic bacteria.更多还原