A5071131219- Entomopathogenic Microorganisms in Pest Control
- Insect Pest Control Strategies
- Insect and Pesticide Research
- Insect Resistance and Genetics
- Insect and Arachnid Ecology and Behavior
- Helminth infection and control
- Vector-borne infectious diseases
- Nematode management and characterization studies
- Insect symbiosis and bacterial influences
- Insect Utilization and Effects
- Parasite Biology and Host Interactions
- Forensic Entomology and Diptera Studies
- Vector-Borne Animal Diseases
- Mollusks and Parasites Studies
- Invertebrate Immune Response Mechanisms
- Neurobiology and Insect Physiology Research
- Insects and Parasite Interactions
- Toxoplasma gondii Research Studies
- Animal testing and alternatives
- Insect behavior and control techniques
- Viral Infections and Vectors
- Plant Parasitism and Resistance
- Bacterial biofilms and quorum sensing
- Agriculture and Farm Safety
- Medical and Biological Ozone Research
Universidade Federal Rural do Rio de Janeiro
2015-2024
Universidade Federal do Rio de Janeiro
1997-2020
Instituto de Genética Veterinaria
2017
Associação Brasileira de Oncologia Veterinária
2013-2014
Institute of Animal Science and Pastures
1997
Leibniz University Hannover
1997
Destruxins (DTXs) are cyclic depsipeptides produced by many Metarhizium isolates that have long been assumed to contribute virulence of these entomopathogenic fungi. We evaluated the 20 against insect larvae and measured concentration DTXs A, B, E same in submerged (shaken) cultures. Eight (ARSEF 324, 724, 760, 1448, 1882, 1883, 3479, 3918) did not produce or during five days culture. were first detected culture medium at 2–3 Galleria mellonella Tenebrio molitor showed considerable variation...
This study aimed to evaluate the in vitro effect of entomopathogenic fungi Metarhizium anisopliae sensu lato (s.l.) and Beauveria bassiana on two distinct populations Rhipicephalus microplus, from different experimental farms. Bioassays were performed with engorged females, eggs larvae. Fungal infection was evaluated based biological parameters treated percentage hatch eggs, mortality mean lethal time (LT90) When treatments compared between populations, there significant differences...
The formulations of acaripathogenic fungi to control ticks have been widely studied. present study evaluated the efficacy oil-based Metarhizium anisopliae sensu lato (s.l.), isolate Ma 959, and Beauveria bassiana, Bb 986, on different Rhipicephalus microplus stages, comparing between aqueous suspensions 10, 15 20% mineral oil formulations. Twelve groups were formed: one group; three groups, at or 20%; two fungal M. s.l. B. bassiana; (s.l.) bassiana containing 15, oil. To prepare oily...
The tick Rhipicephalus microplus poses a serious threat to the cattle industry, resulting in economic losses aggravated by resistance chemical acaricides. Strains of Metarhizium spp., well-known group entomopathogenic fungi, can contribute managing this ectoparasite. We explored two novel granular, microsclerotia- or blastospores-based formulations robertsii for R. control under semi-field conditions. Fungal persistence soil was also observed 336 days. experiment used pots Urochloa decumbens...
The use of chemical acaricides is the primary strategy to control tick infestations. Nonetheless, resistance in ticks has been reported. Thus, complementary methods such as biological using entomopathogenic fungi (EPF) have investigated. EPF, although efficient, their viability compromised when applied under natural conditions, which indicates that formulation development essential. Some researchers demonstrated efficacy ionic gelation protecting EPF against deleterious abiotic factors. In...
The present study evaluated, for the first time, effect of commercial formulation Metarril(®) SP Organic Metarhizium anisopliae plus 10% mineral oil to control Rhipicephalus microplus in a pen study. Three groups were formed with six animals each: group was exposed and 1% Tween 80; second sterile distilled water, 80 (oil group); third received no treatment (control group). fungal contained 1 × 10(8)conidiaml(-1). Each animal sprayed 3L formulation. Fallen ticks counted daily sample 20...
Mosquito-borne diseases affect millions of people. Chemical insecticides are currently employed against mosquitoes. However, many cases insecticide resistance have been reported. Entomopathogenic fungi (EPF) demonstrated potential as a bioinsecticide. Here, we assessed the invasion EPF Beauveria bassiana into Aedes aegypti larvae and changes in activity phenoloxidase (PO) proxy for general activation insect innate immune system. In addition, other cellular humoral responses were...
We assessed the effect of entomopathogenic fungus Metarhizium anisopliae against Aedes aegypti. Conidia M. strains CG 489, 153, and IBCB 481 were grown in Adamek medium under different conditions to improve blastospore production. Mosquito larvae exposed blastospores or conidia three fungal at 1 × 107 propagules mL-1. 153 reduced larval survival by 100%, whereas 489 decreased about 50%. Blastospores had better results lowering survival. similarly. For histopathology (HP) scanning electron...
Here, the effectiveness of Beauveria bassiana LCM S19 and Metarhizium anisopliae S01, combined with Illicium verum essential oil (EO) against Aedes aegypti larvae was investigated. The EO compounds were first identified through gas chromatography, primary compound being (E)-anethole. Subsequently, in silico analysis employed to predict biological activity (E)-anethole, revealing 89 molecular targets, which included insecticidal activity. Next impact on fungal viability colony growth examined...
The genetic diversity of Beauveria bassiana was investigated by comparing isolates this species to each other (49 from different geographical regions Brazil and 4 USA) spp.The were examined multilocus enzyme electrophoresis (MLEE), amplified fragment length polymorphism (AFLP), rDNA sequencing. MLEE AFLP revealed considerable variability among B. isolates. Several South Southeast had high similarity coefficients, providing evidence at least one population with clonal structure. There clear...
The use of entomopathogenic fungi to control arthropods has been reported worldwide for decades. aim the present study was evaluate virulence 30 Metarhizium anisopliae s.l. Brazilian isolates from different geographical regions, hosts or substrates on larvae Rhipicephalus (Boophilus) microplus ticks under in vitro conditions selection virulent order be further used biological programs. current confirmed lethal action M. R. (B.) with mortality levels, usually directly proportional conidia...