Article (Scientific journals)
Pathogenicity of Aspergillus clavatus produced in a fungal biofilm bioreactor toward Culex quinquefasciatus (Diptera: Culicidae)
Seye, Fawrou; Bawin, Thomas; Boukraa, Slimane et al.
2014In Journal of Pesticide Science, 39 (3), p. 127-132
Peer reviewed
 

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Keywords :
biological control; entomopathogenic fungi; Aspergillus clavatus; biofilm bioreactor; solid-state fermentation; submerged fermentation
Abstract :
[en] Many entomopathogenic fungi have been demonstrated to be potential agents for efficiently controlling mosquito populations. In the present study, we investigated a bioreactor system to produce metabolites and conidia by combining technological advantages of submerged and solid-state fermentations. The efficiency of fungal products was tested toward mosquitoes. Aspergillus clavatus (Eurotiales: Trichocomaceae) was grown by semi-solid-state fermentation in a bioreactor for up to 7 days. Depending on conidial doses (2.5×10^7, 5×10^7, 7.5×10^7, 10×10^7 and 12.5×10^7 conidia/mL), mortality ranged from 37.2±15.0 to 86.3±5.0% toward larvae and from 35.8±2.0 to 85.2±1.5% toward adults. The metabolites (10, 20, 40, 60, 80 and 100% v/v) yielded mortality from 23.7±15.0 to 100.0±0.1% toward larvae, and two sprayed volumes (5 and 10 mL) reached 45.5±1.4 and 75.6±2.6% mortality, respectively, toward adults.
Disciplines :
Entomology & pest control
Biotechnology
Author, co-author :
Seye, Fawrou ;  University Cheik Anta Diop > Faculté des Sciences et Techniques > Laboratoire de Biologie de la Reproduction
Bawin, Thomas  ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol.
Boukraa, Slimane ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol.
Zimmer, Jean-Yves ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol.
Ndiaye, Mady;  University Cheik Anta Diop > Faculté des Sciences et Techniques > Laboratoire de Biologie de la Reproduction
Delvigne, Frank  ;  Université de Liège - ULiège > Chimie et bio-industries > Bio-industries
Francis, Frédéric  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
 These authors have contributed equally to this work.
Language :
English
Title :
Pathogenicity of Aspergillus clavatus produced in a fungal biofilm bioreactor toward Culex quinquefasciatus (Diptera: Culicidae)
Publication date :
14 August 2014
Journal title :
Journal of Pesticide Science
Volume :
39
Issue :
3
Pages :
127-132
Peer reviewed :
Peer reviewed
Available on ORBi :
since 23 September 2014

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