caa a22 4500 606161708 CHVBK 20210128100635.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10526-015-9667-2 doi (NATIONALLICENCE)springer-10.1007/s10526-015-9667-2 Inhibition of the entomopathogenic fungus Metarhizium anisopliae sensu lato in vitro by the bed bug defensive secretions ( E )-2-hexenal and ( E )-2-octenal [Elektronische Daten] [Kevin Ulrich, Mark Feldlaufer, Matthew Kramer, Raymond St. Leger] The two major aldehydes (E)-2-hexenal and (E)-2-octenal emitted as defensive secretions by bed bugs Cimex lectularius L. (Hemiptera: Cimicidae), inhibit the in vitro growth of an isolate of Metarhizium anisopliae sensu lato (s.l.) (Metsch.) Sokorin (Hypocreales: Clavicipitaceae) (ARSEF 1548). These chemicals inhibit fungal growth by direct contact and via indirect exposure ("fumigation”). Fumigation with (E)-2-octenal for as little as 0.5h was sufficient to inhibit all fungal growth. Bed bugs placed on filter paper treated with an isolate of M. anisopliae s.l. conidia in the absence of (E)-2-octenal exhibited 99% mortality after oneweek. However, bed bugs placed on fungal-treated filter paper and exposed to (E)-2-octenal at 1h experienced 10% mortality. The inhibition of fungal growth by bed bug aldehydes is discussed in the context of other biotic and abiotic barriers to infection. International Organization for Biological Control (outside the USA), 2015 Cimex lectularius (Hemiptera: Cimicidae) nationallicence Aldehydes nationallicence Antifungal activity nationallicence Volatiles nationallicence Defensive chemistry nationallicence Glandular secretions nationallicence Ulrich Kevin Department of Entomology, University of Maryland, 20742, College Park, MD, USA aut Feldlaufer Mark Invasive Insect Biocontrol & Behavior Laboratory, USDA-ARS, 20705, Beltsville, MD, USA aut Kramer Matthew Biometrical Consulting Service, USDA-ARS, 20705, Beltsville, MD, USA aut St. Leger Raymond Department of Entomology, University of Maryland, 20742, College Park, MD, USA aut BioControl Springer Netherlands 60/4(2015-08-01), 517-526 1386-6141 60:4<517 2015 60 10526 https://doi.org/10.1007/s10526-015-9667-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10526-015-9667-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ulrich Kevin Department of Entomology, University of Maryland, 20742, College Park, MD, USA aut NATIONALLICENCE 700 1- Feldlaufer Mark Invasive Insect Biocontrol & Behavior Laboratory, USDA-ARS, 20705, Beltsville, MD, USA aut NATIONALLICENCE 700 1- Kramer Matthew Biometrical Consulting Service, USDA-ARS, 20705, Beltsville, MD, USA aut NATIONALLICENCE 700 1- St. Leger Raymond Department of Entomology, University of Maryland, 20742, College Park, MD, USA aut NATIONALLICENCE 773 0- BioControl Springer Netherlands 60/4(2015-08-01), 517-526 1386-6141 60:4<517 2015 60 10526