CAJ | 학술논문

为了揭示高温对球孢白僵菌分生孢子萌发的影响,进行不同温度下球孢白僵菌菌株分生孢子的耐热性测定。采用37、38、39、40℃温度针对不同的菌株,分别处理1、2、3、4、5 h,测定分生孢子的萌发率,研究其耐热性。结果表明：37℃高温处理时,随处理时间变化各菌株分生孢子萌发率无明显差异,处于65%~98%之间;而在38、39、40℃处理,随着处理时间的变化,各菌株分生孢子萌发率变化明显,尤以39℃和40℃更为明显,最低仅为4%。CYT5和CYT10菌株39℃和40℃处理1 h,分生孢子萌发率为86%~90%,表明该菌株分生孢子对高温具有强的耐受性。总之,高温对球孢白僵菌的分生孢子的萌发具有一定的抑制作用。
위료게시고온대구포백강균분생포자맹발적영향,진행불동온도하구포백강균균주분생포자적내열성측정。채용37、38、39、40℃온도침대불동적균주,분별처리1、2、3、4、5 h,측정분생포자적맹발솔,연구기내열성。결과표명：37℃고온처리시,수처리시간변화각균주분생포자맹발솔무명현차이,처우65%~98%지간;이재38、39、40℃처리,수착처리시간적변화,각균주분생포자맹발솔변화명현,우이39℃화40℃경위명현,최저부위4%。CYT5화CYT10균주39℃화40℃처리1 h,분생포자맹발솔위86%~90%,표명해균주분생포자대고온구유강적내수성。총지,고온대구포백강균적분생포자적맹발구유일정적억제작용。
Heat-tolerance experiments were conducted among Beauveria bassiana isolates collected from Drosicha corpulenta Kuwana in Yantai City to examine the high temperature influence on the germination rates of conidia.Germination of conidia was assessed after 1,2,3,4,5 h of incubation at 37,38,39 or 40℃.The germination rates of conidia,from 65% to 98%,were not markedly influenced after isolates being exposed to 37℃ for 1,2,3,4 or 5 h.While the germination rates of conidia,ranging 4% to 90% were markedly declined with increasing exposure temperature（38,39,or 40℃） and time（1,2,3,4 or 5 h）.CYT5 and CYT10 isolates displayed higher the germination rates of conidia（86%-90%） than other isolates after 1 h of incubation at 40℃.The results showed that CYT5 and CYT10 were the most-tolerant isolates.In general,the germination of conidia was restrained by high temperature.