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Therapeutic effect of GP543 strain of Bacillus thuringiensis against Amblyomma cajennense ticks in vitro and in naturally infested cattle.
Parasitol Res
December 2024
Facultad de Ciencias Agropecuarias, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Chamilpa, 62209, Cuernavaca, Morelos, Mexico.
The current study was focused on evaluating the in vitro effect of the spore-crystal complex of GP543 Bacillus thuringiensis strain on the viability of Amblyomma cajennense, and the in vivo reduction of the parasite load of this ectoparasite on naturally infested cattle. In vitro, 30 adult ticks were treated with 1.2 mg/ml of B.
View Article and Find Full Text PDFMicrobial agents for the control of ticks Rhipicephalus microplus.
Parasitol Res
July 2024
Centro Nacional de Investigación Disciplinaria en Salud Animal E Inocuidad, Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias, Carretera Federal Cuernavaca-Cuautla 8534, Colonia Progreso, Jiutepec, Morelos, CP 62550, México.
Ticks are ectoparasites responsible for the transmission of various pathogens to vertebrates. They represent one of the major threats to livestock production worldwide due to their impact on the health, production and welfare of livestock destined for human consumption. The development of resistance to the main families of ixodicides used for their control has led to the search for new alternatives, where microbial control is an option.
View Article and Find Full Text PDFA One Health Epidemiological Approach for Understanding Ticks and Tick-Borne Pathogens.
Vector Borne Zoonotic Dis
August 2024
Biotechnology in Health and Environmental Sciences Research Laboratory, Natural Sciences College, Autónomous University of Guerrero, Chilpancingo, Guerrero, México.
The control and prevention of ticks and tick borne diseases (TBDs) is often difficult, since it is necessary to disrupt a complex transmission cycle, involving ticks and vertebrate hosts, which interact in a changing environment, driven by constant environmental and ecological changes. Our view is that factors driving the spread of are complex and intrinsically interconnected, something that has often been ignored in control strategies. The aim of this review is to analyze the importance of the epidemiological surveillance of ticks and tick-borne diseases (TTBDs) for Public Health, with the One Health approach; emphasizing the knowledge, importance, and distribution of TTBDs.
View Article and Find Full Text PDFOptimization of fungicidal and acaricidal metabolite production by endophytic fungus Aspergillus sp. SPH2.
Bioresour Bioprocess
March 2024
Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Ciencias Agrarias (ICA), Calle de Serrano 115B, 28006, Madrid, Spain.
The endophytic fungus Aspergillus sp. SPH2 was isolated from the stems of the endemic plant Bethencourtia palmensis and its extracts were found to have strong fungicidal effects against Botrytis cinerea and ixodicidal effects against Hyalomma lusitanicum at different fermentation times. In this study, the fungus was grown using three different culture media and two methodologies, Microparticulate Enhancement Cultivation (MPEC) and Semi-Solid-State Fermentation (Semi-SSF), to increase the production of secondary metabolites during submerged fermentation.
View Article and Find Full Text PDFEfficacy of ethyl-4-bromophenyl carbamate on different Rhipicephalus microplus stages implanted in cattle.
Exp Appl Acarol
November 2023
Departamento de Ciencias Biológicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico.
The effect of ethyl-4-bromophenyl carbamate on different Rhipicephalus microplus stages implanted in cattle was evaluated using the pen test with infestation chambers. Twelve steers were distributed into four groups (n = 3), each with four chambers (12 chambers per group), where approximately 1,000 R. microplus larvae were placed in each chamber.
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