Effects of destruxin A on Rhipicephalus (Boophilus) microplus ticks (Acari: Ixodidae)

Gôlo, Patrícia Silva; Angelo, Isabele da Costa; Camargo, Mariana Guedes; Perinotto, Wendell Marcelo de Souza; Bittencourt, Vânia Rita Elias Pinheiro

doi:10.1590/s1984-29612011000400015

Cited by 7 publications

(3 citation statements)

References 12 publications

(14 reference statements)

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“…This in agreement with Moon et al (2008) who found that M. acridum has very low destruxin production even though this isolate is very effective against grasshopper/ locust. Moreover, Golo et al (2011) found that different concentrations of destruxin A did not cause any effect on engorged female of R. microplus. Additionally, Fernandes et al (2012) concluded that the fungal production of toxic metabolites might not be crucial for pathogenicity to arthropods, including ticks.…”

Section: March 2018 | Volume 6 | Issue 3 | Page 145mentioning

confidence: 93%

In vitro Efficacy of Verticillium lecanii and Beauveria bassiana of Commercial Source Against Cattle Tick, Rhipicephalus (Boophilus) annulatus

Aboelhadid¹,

Ibrahium²,

Arafa³

et al. 2018

Adv. Anim. Vet. Sci.

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T icks are an important threat to livestock due to either their direct effect or their role as tick-borne diseases. The ticks control is commonly by using chemical products, which has several side effects. Therefore, using biological control agents has become urgent and safe alternative to reduce and to avoid these adverse effects (Samish et al., 2004; Reis-Menini et al., 2008). Entomopathogenic fungi were commonly used in pest control of crops and forest pests (Kaaya et al., 1996). Recently, great attention is being paid to these fungi in control of arthropods borne disease of human and animals. These fungi can infect and often kill ticks and therefore can be used in ticks control (Gindin et al., 2001). Beauveria bassiana and Lecanicillium lecanii (=Verticillium lecanii) are among the most important species infecting ixoidid ticks in nature and different strains of B. bassiana are pathogenic to different kinds of tick (Fernandes et al., 2012; Camargo et al., 2012; Ren et al., 2016). The efficacy of used the fungi depend on the tick species and population and the fungal strain (Fernandes et al., 2012; Campos et al., 2010; Sun et al., 2011; Perinotto et al., 2012). The biopesticide that contains B. bassiana (Balsamo, Vuillemin) is used to control flies on animal species (balEnce), and against crop pests' greenhouses and food crops (Met52) (Gonzalez et al., 2016).While, Lecanicillium lecanii (Zimmermann) Gams research Article Abstract | Two entomopathogenic fungi, Verticillium lecanii and Beauveria bassiana, were tested against Rhipicephalusannulatus. Mycotal® was the source of Verticillium lecanii while Biosect® was the source of Beauveria bassiana. Five concentrations (1×10 7 , 5×10 8 , 2.5×10 9 , 1×10 10 and 4×10 10 spore/ml) of Verticillium lecanii as well as five different concentrations (5×10 7 , 2×10 8 , 8×10 9, 3.2×10 10 and 12.8x10 10 /ml) of Beauveria bassiana were prepared and tested against adult female tick, eggs and larvae. The mortality in adult ticks was 60.60 to 72.00% after 2 weeks of application for V. lecanii at concentration ≥ 5x10 8 spore/ml, while B. bassiana showed no mortality at any concentrations. The treated tick revealed nutritional index significantly lower than control untreated one for both fungi. Furthermore, V. lecanii showed no effect on eggs, while, B. bassiana delayed and reduced the egg hatching. In addition, both fungi caused 100% mortality of larvae. The effective concentration was ≥ 10 8 spore/ml for both fungi with no significant difference among the highest concentrations. Moreover, the fungal extract had no effect on adult tick. In conclusion, V. lecanii is lethal to adult tick and B. bassiana caused larvae mortality and reduced egg hatching. A prospective application of fungi of commercial source in the pasture or animal farm is possible for tick control.

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Section: March 2018 | Volume 6 | Issue 3 | Page 145mentioning

confidence: 93%

In vitro Efficacy of Verticillium lecanii and Beauveria bassiana of Commercial Source Against Cattle Tick, Rhipicephalus (Boophilus) annulatus

Aboelhadid¹,

Ibrahium²,

Arafa³

et al. 2018

Adv. Anim. Vet. Sci.

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“…This tick species secrete toxins which produce positive inotropic responses in rat left ventricular papillary muscles and positive contractile responses in rat thoracic aortic rings [34]. Destruxin A secreted by Rhipicephalus (Boophilus) microplus ticks (Acari: Ixodidae) causes tetanic paralysis [35]. Tick secrete a highly paralytic and lethal venom cocktail of proteinaceous molecules contain neurotoxins HT-1, present in the saliva ticks despite several species possessing saliva of the Australian paralysis tick [36] (table 3).…”

Section: Tick-borne Paralysismentioning

confidence: 99%

Tick-Borne Zoonotic Diseases and Its Control

Yadav

Upadhyay

2022

Int J Pharm Pharm Sci

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The present review article explains different zoonotic diseases transmitted by various species of ticks. This article emphasizes various animal hosts, transmission and prevalence of various zoonotic diseases caused by a virus, bacteria, protozoans in different eco-climatic regions of the world. This article also explains various diagnostic methods applied for the detection of disease pathogens, treatment methods and prophylactic measures. It recommends tick saliva antigen-based oral vaccines and antibiotics as treatment methods. It also suggests use of various bait formulations and cultural control methods for deterring ticks from blood feeding. This article signifies the need of pesticides for control of ticks and tick-borne diseases.

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“…It is important to note that not all EPF populations have the same capacity to produce all the enzymes or toxins reported in the scientific literature (Schrank and Vainstein, 2010), neither in variety nor in quantity. For example, in R. microplus, the immersion or inoculation of dextruxin A from M. anisopliae on engorged ticks neither affected their biological parameters nor caused paralysis (Golo et al, 2011); but other study reported an acaricidal effect of distinct destruxins from Beauveria feline against R. microplus (Morais-Urano et al, 2012). In addition, different environmental and nutritional factors have been identified as the main triggers of the genetic expression of these components (Campos et al, 2005;Fang et al, 2005).…”

Section: Fungal Growth and Death Of The Hostmentioning

confidence: 99%

Entomopathogenic Fungi for Tick Control in Cattle Livestock From Mexico

Alonso-Díaz

Fernández-Salas

2021

Front. Fungal Biol.

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Ticks are one of the main economic threats to the cattle industry worldwide affecting productivity, health and welfare. The need for alternative methods to control tick populations is prompted by the high prevalence of multiresistant tick strains to the main chemical acaricides and their ecological consequences. Biological control using entomopathogenic fungi (EPF) is one of the most promising alternative options. The objective of this paper is to review the use of EPF as an alternative control method against cattle ticks in Mexico. Metarhizium anisopliae sensu lato (s.l.) and Beauveria bassiana s.l. are the most studied EPF for the biological control of ticks in the laboratory and in the field, mainly against Rhipicephalus microplus; however, evaluations against other important cattle ticks such as Amblyomma mixtum and R. annulatus, are needed. A transdisciplinary approach is required to incorporate different types of tools, such as genomics, transcriptomics and proteomics in order to better understand the pathogenicity/virulence mechanism in EPF against ticks. Laboratory tests have demonstrated the EPF efficacy to control susceptible and resistant/multiresistant tick populations; whereas, field tests have shown satisfactory control efficiency of M. anisopliae s.l. against different stages of R. microplus when applied both on pasture and on cattle. Epidemiological aspects of ticks and environmental factors are considered as components that influence the acaricidal behavior of the EPF. Finally, considering all these aspects, some recommendations are proposed for the use of EPF in integrated control schemes for livestock ticks.

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Effects of destruxin A on Rhipicephalus (Boophilus) microplus ticks (Acari: Ixodidae)

Cited by 7 publications

References 12 publications

In vitro Efficacy of Verticillium lecanii and Beauveria bassiana of Commercial Source Against Cattle Tick, Rhipicephalus (Boophilus) annulatus

In vitro Efficacy of Verticillium lecanii and Beauveria bassiana of Commercial Source Against Cattle Tick, Rhipicephalus (Boophilus) annulatus

Tick-Borne Zoonotic Diseases and Its Control

Entomopathogenic Fungi for Tick Control in Cattle Livestock From Mexico

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