The susceptibility of different species and stages of ticks to entomopathogenic fungi

Gindin, Galina; Samish, Michael; Mishoutchenko, Aziza; Glazer, I.

doi:10.1007/978-94-017-3526-1_29

Cited by 42 publications

(44 citation statements)

References 2 publications

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“…There were considerable differences among strains in relation to female reproductive efficiency and mean percentage control. Strains of B. bassiana and M. anisopliae were also studied in other countries (Gindin et al 2001(Gindin et al , 2002. In a recent study, the effect of formulation, fungal concentration, type and seasonal changes on the mortality of the tick Amblyomma variegatum were investigated (Maranga et al 2005).…”

Section: Discussionmentioning

confidence: 99%

“…In the control group, filter papers were impregnated with 0.5 ml of aqueous solution of 0.005% Tween 80 (Gindin et al 2002).…”

Section: C) Larvaementioning

confidence: 99%

“…Entomopathogenic fungi were used widely for the control of agricultural and forest pests (Kaaya et al 1996) and in recent years efforts were made to evaluate the biocontrol potentials of these fungi against important arthropod vectors of human and animal diseases. Entomopathogenic fungi are known to infect different tick species and the efficacy of these interesting fungi to control ticks is highly strain-specific (Gindin et al 2001(Gindin et al , 2002Samish and Rehacek 1999). Among these fungi, Beauveria bassiana and Metarhizium anisopliae received major attention (Kalsbeek et al 1995).…”

Section: Introductionmentioning

confidence: 99%

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Biological control of Rhipicephalus (Boophilus) annulatus by different strains of Metarhizium anisopliae, Beauveria bassiana and Lecanicillium psalliotae fungi

et al. 2006

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Virulence of 11 native strains of entomopathogenic fungi; Metarhizium anisopliae (three strains), Beauveria bassiana (six strains) and Lecanicillium psalliotae (two strains) collected from different parts of Iran, were studied against different developmental stages of Rhipicephalus (Boophilus) annulatus. After the exposure of ticks to the fungal strains in different concentrations (i.e. 10(3), 10(5), 10(7) conidia/ml), various parameters such as mortality rate and reproductive efficiency of engorged females, mortality of unfed tick larvae and eclosion percentage of infected eggs were evaluated to determine the fungal virulence. Based on the obtained results, five strains including M. anisopliae (IRAN 437 C and DEMI 001), B. bassiana (IRAN 403 C) and L. psalliotae (IRAN 468 C and IRAN 518 C) were found to be virulent to various stages of tick developmental cycle. Mortality rate of engorged females was found to be dose-dependent with regard to the conidial concentration used. Total mortality rates of 90-100%, 70% and 56.6% were observed for M. anisopliae (IRAN 437 C and DEMI 001), B. bassiana (IRAN 403 C) and L. psalliotae (IRAN 468 C), 6-11 days post inoculation (PI) with 10(7) conidia/ml, respectively. Most strains were able to inhibit egg laying by females in the range of 0-26% in different conidial concentrations. The results indicated that the mean egg laying of treated engorged tick females exposed to M. anisopliae (IRAN 437 C) was less than the mean values of those treated with other fungal strains. Results revealed 89.1%, 35.5% and 56.3% decrease in egg hatchability and 88.69%, 78.15% and 59.74% reduction in reproductive efficiency of the ticks using 10(7) conidia/ml of M. anisopliae (IRAN 437 C), B. bassiana (IRAN 403 C) and L. psalliotae (IRAN 468 C), respectively. In general, the entomopathogenic effects of native M. anisopliae and B. bassiana against various developmental stages of R. (B.) annulatus were confirmed in the present work. Likewise, although L. psalliotae, which was introduced for the first time as an entomopathogenic fungus against tick had not more than 13.3% mortality effect against adult females, but its effect on egg hatchability and reproductive efficiency was remarkable.

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Section: Discussionmentioning

confidence: 99%

“…In the control group, filter papers were impregnated with 0.5 ml of aqueous solution of 0.005% Tween 80 (Gindin et al 2002).…”

Section: C) Larvaementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biological control of Rhipicephalus (Boophilus) annulatus by different strains of Metarhizium anisopliae, Beauveria bassiana and Lecanicillium psalliotae fungi

et al. 2006

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“…Entomopathogenic fungi (M. anisopliae, B. bassiana, and P. fumosoroseus) are major pathogens of ticks and have gained recent popularity as biocontrol agents of ticks because of their high virulence and wide distribution (Gindin et al 2002). They also release mycotoxins which may functionally mediate host mortality, reduction in tick engorgement weights, fecundity, and egg hatchability (Kaaya et al 1996).…”

Section: Discussionmentioning

confidence: 99%

“…B. bassiana or M. anisopliae have also been shown to be highly pathogenic, under laboratory conditions, to Amblyomma variegatum, Rhipicephalus appendiculatus, and Boophilus decoloratus (Kaaya 2000;Kaaya and Hassan 2000;Kaaya et al 1996). Finally, Gindin et al (2002) reported that the mortality of engorged female Boophilus annulatus and Rhipicephalus sanguineus ticks infected with B. bassiana, or M. anisopliae reached 80-100%.…”

Section: Introductionmentioning

confidence: 93%

Biological control of engorged female Haemaphysalis qinghaiensis (Acari: Ixodidae) ticks with different Chinese isolates of Beauveria bassiana

et al. 2011

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Seven isolates of the fungus Beauveria bassiana (B.b) were assessed for their lethality against Haemaphysalis qinghaiensis, a prevalent tick species in China. Fourteen days after exposure to the isolates B.bAT1, B.bAT5, and B.bAT7 (at 10(8) conidia mL(-1)), the mortality rate had reached 100%. The results indicated that these three B. bassiana isolates were highly virulent against the engorged female H. qinghaiensis ticks. The present study suggests that B. bassiana has potential for biocontrol applications to eradicate H. qinghaiensis.

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Comparative response of Metarhizium brunneum to the cuticles of susceptible and resistant hosts

Ment

Gindin

Samish

et al. 2020

Arch Insect Biochem Physiol

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Earlier studies demonstrated that Metarhizium brunneum, usually a broad-host pathogen of arthropods, is unable to complete its pathogenic life cycle when inoculated on the fungus-resistant tick, Hyalomma excavatum engorged females. While the fungus penetrates the cuticle of fungussusceptible tick, Rhipicephalus annulatus females, it is unable to penetrate the cuticle of fungus-resistant tick, and even perishes on its surface. This is probably due to high concentration of antifungal fatty acids and probably also due to a hypersensitive-like response of the tick. To understand the metabolic pathways occurring in the fungal hyphae upon encountering the cuticles, we compared the response of the fungus to cuticle from susceptible and resistant tick cuticles by 2D-gels. The intracellular proteomes of M. brunneum Mb7 exposed to cuticle of the fungus-susceptible tick, R. annulatus, and to the fungusresistant tick, H. excavatum engorged females were compared after exposure to either cuticles. By means of liquid chromatography-mass spectrometry/mass spectrometry we identified in both proteomes common proteins involved in biological processes as well as unique proteins identified only in the proteome of fungus exposed to fungus-resistant tick cuticle. These proteins were identified in high probability as heat shock proteins, four key enzymes of the glyoxylate cycle, and proteins associated with hypoxia, and exposure to antifungal drugs. These findings are discussed

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The susceptibility of different species and stages of ticks to entomopathogenic fungi

Cited by 42 publications

References 2 publications

Biological control of Rhipicephalus (Boophilus) annulatus by different strains of Metarhizium anisopliae, Beauveria bassiana and Lecanicillium psalliotae fungi

Biological control of Rhipicephalus (Boophilus) annulatus by different strains of Metarhizium anisopliae, Beauveria bassiana and Lecanicillium psalliotae fungi

Biological control of engorged female Haemaphysalis qinghaiensis (Acari: Ixodidae) ticks with different Chinese isolates of Beauveria bassiana

Comparative response of Metarhizium brunneum to the cuticles of susceptible and resistant hosts

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