A mixed virus infection in a strain of the endophytic and entomopathogenic fungus Tolypocladium cylindrosporum was deduced from a study of the transmission to conidia of several double-stranded RNA (dsRNA) elements. The transmission rates of each dsRNA were different, and monosporic isolates harbouring different combinations of the original set of six dsRNAs were obtained. A 5196 bp dsRNA eleme...

The entomopathogenic fungus Beauveria bassiana produces at least three distinct single-cell propagules, aerial conidia, vegetative cells termed blastospores, and submerged conidia, which can be isolated from agar plates, from rich broth liquid cultures, and under nutrient limitation conditions in submerged cultures, respectively. Fluorescently labeled fungal cells were used to quantify the kine...

Fungi cause the majority of insect disease. However, to date attempts to model host-fungal interactions with Drosophila have focused on opportunistic human pathogens. Here, we performed a screen of 2,613 mutant Drosophila lines to identify host genes affecting susceptibility to the natural insect pathogen Metarhizium anisopliae (Ma549). Overall, 241 (9.22%) mutant lines had altered resistance t...

Jujube fruit fly, Carpomyia vesuviana, is the most important pest of jujube in Iran. During February and March 2013, a survey on fungi associated with pupae of C. vesuviana was conducted in Birjand, South Khorasan province of Iran. To isolate fungi, the samples were washed under running tap water, surface-sterilized in 0.5% sodium hypochlorite, then rinsed and placed ...

Marked differences in surface characteristics were observed among three types of single-cell propagules produced by the entomopathogenic fungus Beauveria bassiana. Atomic force microscopy (AFM) revealed the presence of bundles or fascicles in aerial conidia absent from in vitro blastospores and submerged conidia. Contact angle measurements using polar and apolar test liquids placed on cell laye...

AtsSTRACT. The inf'ection of adult mosquitoes by the entomopathogenic fungus Erynio conica is presented for the first time. Adult Aedes aegypti were exposed to conidial showers from field-collected chaoborid, tipulid and chironomid cadavers for 24 h under conditions of 100% RH and ll"C.Up Io 24% of the adults were killed by the mycosis. Cadavers of Ae. aegypti produced conidia that were infecti...

Abstract Background Entomopathogenic fungi are an important biological agent in integrated pest management, playing a critical role controlling insect populations. In the present study, sublethal effects of entomopathogenic fungus, Metarhizium anisopliae (Ascomycota: Hypocreales), were investigated on biotic potential Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), which is major ...

Entomopathogenic fungi are microbial agents of insect control in nature. They have been used as biologic strategies to manage invasion; however, the challenge is maintain their shelf life and viability when exposed high temperatures, ultraviolet radiation, humidity. Synthesized silver nanoparticles (AgNPs) from fungal extracellular enzymes an alternative using these microorganisms obtain with i...

Tomato yellow leaf curl virus (TYLCV) is transmitted by the Bemisia tabaci pest Middle East-Asia Minor 1 (MEAM1) in China. Isaria fumosorosea is a fungal pathogen of B. tabaci. However, the effects of fungal infection on TYLCV expression and transmission by MEAM1 are unclear. In this study, potted tomatoes containing second instar nymphs of MEAM1 were treated with I. fumosorosea IfB01 strain an...

We tested the hypothesis that the entomopathogenic fungus Beauveria bassiana would be more efficacious on oat cultivars that prolonged the immature developmental period of sawtoothed grain beetle, Oryzaephilus surinamensis (L.), a storage pest. However, percentage of reduction in progeny production was similar on whole 'Don' and 'Paul' oats treated with fungus, even though immature developmenta...