Analysis of fermentation broth of the entomopathogenic fungus Metarhizium anisopliae has led to isolation of aurovertin D ( 1) and three new aurovertin-type metabolites, aurovertin F ( 2), aurovertin G ( 3), and aurovertin H ( 4). Their structures were determined on the basis of spectroscopic analyses and chemical conversions.
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http://dx.doi.org/10.1021/np070494e | DOI Listing |
Sci Rep
January 2025
Institut de Recherche en Sciences de la Santé, IRSS, Bobo-Dioulasso, Burkina Faso.
Entomopathogenic fungi engineered to express insect-specific neurotoxins have demonstrated potential as microbial control agents against malaria mosquitoes. Currently, the primary application method is via direct contact of spores with indoor resting mosquitoes. However, many malaria-transmitting mosquitoes feed and rest outdoors.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China.
Entomopathogenic fungi play a critical role in regulating insect populations, and representative species from the and genera have been developed as eco-friendly biocontrol agents for managing agricultural insect pests. Relative to the advances in understanding antifungal immune responses in , knowledge of how fungi evade insect immune defenses remains limited. In this study, we report the identification and characterization of a virulence-required effector Fkp1 in .
View Article and Find Full Text PDFEnviron Microbiol Rep
February 2025
Department of Systematic and Environmental Botany, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland.
The fungus Beauveria felina is often classified as one of the so-called good biocontrol agents. However, no information is available about the growth of this entomopathogenic fungus in the presence of other endophytic fungi, which are usually found in plant tissues. Effects of fungal interactions vary from inhibiting the activity of a biocontrol agent to stimulating its effect on the targeted pathogen.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Entomology, The Pennsylvania State University, University Park, PA, United States of America.
Because the use of synthetic agrochemicals is generally not allowed in organic crop production systems, growers rely on natural substances and processes, such as microbial control, to suppress insect pests. Reduced tillage practices are associated with beneficial soil organisms, such as entomopathogenic fungi, that can contribute to the natural control of insect pests. The impacts of management, such as tillage, in a cropping system can affect soil biota in the current season and can also persist over time as legacy effects.
View Article and Find Full Text PDFThe entomopathogenic fungus isolate ICIPE 7 is being developed as an eco-friendly alternative to chemical acaricides in managing natural tick infestation on livestock. Its impact on tick infestation and tick-borne infections in cattle under natural conditions are yet unclear. We conducted a randomized controlled field trial to assess the safety and effects of Tickoff® (a formulation of isolate ICIPE 7) and the chemical acaricide Triatix® on tick infestation and incidence of and in extensively grazed zebu cattle in coastal Kenya.
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