【摘要】 采用平板对峙法,研究0-9菌株对引起小麦根腐病的致病菌尖孢镰刀菌的抑菌作用,抑菌率为50%,该菌株发酵代谢产物对小麦根腐病菌的抑菌作用达83%;0-9菌株代谢产物处理尖孢镰刀菌的分生孢子后,其萌发率降低61.2%;发酵代谢物质在高温和长时间紫外线照射下仍具有约80%的抑菌活性,且代谢产物的有效抑菌活性可以长达14 d。同时采用平板对峙法研究0-9菌株对5株植物病原真菌的抑菌作用,结果表明0-9菌株也具有广泛的抑菌效果。更多还原

【Abstract】 The bacteriostatic effect of strain 0-9 on Fusarium oxysporum,which caused wheat root rot,was studied by plate confrontation method.The bacteriostatic rate of Fusarium oxysporum was 50%.The bacteriostatic effect of fermentation metabolites on Fusarium oxysporum was 83%.After the conidia of Fusarium oxysporum was treated with metabolites of strain 0-9,the germination rate decreased by 61.2%,and the fermentation metabolites still had about 80% bacteriostatic activity under high temperature and long time ultraviolet irradiation,and the effective bacteriostatic activity of metabolites could be as long as 14 days.At the same time,the bacteriostatic effect of strain 0-9 on 5 strains of plant pathogenic fungi in laboratory was studied by plate confrontation method.The results showed that strain 0-9 also had a wide range of bacteriostatic effects.更多还原