PATHOGENICITY OF ISOLATES OF THE ENTOMOGENOUS FUNGUS BEAUVERIA BASSIANA TO GALLERIA MELLONELLA

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DAYER M.S.

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Journal: Pathobiology Research Year:2001 | Volume:4 | Issue:1 Page(s): 23-31

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Title

PATHOGENICITY OF ISOLATES OF THE ENTOMOGENOUS FUNGUS BEAUVERIA BASSIANA TO GALLERIA MELLONELLA

Author(s)

DAYER M.S. | Issue Writer Certificate

Keywords

BEAUVERIA BASSIANAQ4

GALLERIA MELLONELLAQ4

BIOASSAYSQ4

PATHOGENICITYQ4

Abstract

Using three different methods of BIOASSAYS, the PATHOGENICITY of eight isolates of the fungus BEAUVERIA BASSIANA to the larvae of the Graeter wax moth GALLERIA MELLONELLA was examined. The PATHOGENICITY of the isolates was compared in terms of LT50, LC50 and LD50 values. The isolates exhibited various patterns of PATHOGENICITY in different bioassasys which may reflect their different abilities to breach the larval cuticle. The parallelism of the slopes of the probit regression lines and the equality of log tolerance variances at high spore concentrations supported the idea that the isolated implement similar biochemical strategies in invading the host insect. Therefore, comparisons of the relative potency values were possible. The stability and disturbance of the log tolerance variances at high and sub-lethal spore concentrations respectively imply that the more concentrated inoculum, the narrower is the array of determinant factors involved in the process of infection and vice versa. The results tram injection BIOASSAYS indicate 29 times greater potency for strongest isolole No 210 (LD50= 42 spore/larva) compared to that for the weakest isolate No. 206 (LD50= 1211 spore/ larva). The LT50 values showed great fluctuation over the experiments so that the smallest LT50 values at the highest concentration (108 spore/ml) was 3.0 days for isolate No. 251 and the largest one at lowest concentration (108 spore/ml) was 12 days for isolates No. 274. The LC50 values for the mortality responses of the larvae to the fungal isolates ranged From 2.4 x 105 to 4.5 x 107 spore/ml. The results of this study, not only indicate the involvement of a number of characteristics in the PATHOGENICITY of the fungus towards G. Mellon Ella larvae, but also the applicability of toxicological parameters in the study of a microbial agent.

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دشمنان طبیعی سوسک کلرادوی سیب زمینی در اردبیل - ایران

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APA: Copy

DAYER, M.S.. (2001). PATHOGENICITY OF ISOLATES OF THE ENTOMOGENOUS FUNGUS BEAUVERIA BASSIANA TO GALLERIA MELLONELLA. PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES), 4(1), 23-31. SID. https://sid.ir/paper/81262/en

Vancouver: Copy

DAYER M.S.. PATHOGENICITY OF ISOLATES OF THE ENTOMOGENOUS FUNGUS BEAUVERIA BASSIANA TO GALLERIA MELLONELLA. PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES)[Internet]. 2001;4(1):23-31. Available from: https://sid.ir/paper/81262/en

IEEE: Copy

M.S. DAYER, “PATHOGENICITY OF ISOLATES OF THE ENTOMOGENOUS FUNGUS BEAUVERIA BASSIANA TO GALLERIA MELLONELLA,” PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES), vol. 4, no. 1, pp. 23–31, 2001, [Online]. Available: https://sid.ir/paper/81262/en

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