Fatty acids derived from oviposition systems guide female black soldier flies(Hermetia illucens)toward egg deposition sites

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外文摘要：The black soldier fly,Hermetia illucens,comes with big promises for indus-trial purposes since its larvae feed polyphagously on a broad spectrum of organic sub-strates.However,research focusing on adult flies is scarce,which is inconsistent with their reproductive relevance within the rearing cycle.In particular,directed oviposition is a challenge in artificial systems.Currently,decomposing organic matter is commonly used as oviposition substrate,which has extensive potential for improvement in view of the lack of standardization and the risk of microbial contamination.Here,we identified three fatty acids and one fatty acid methyl ester derived from the surface of old ovipo-sition sites and targeted to elucidate their effect on preference behavior and oviposition site selection using Y-olfactometry and prepared oviposition sites,respectively.Exposure to tetradecanoic acid attracted gravid females and stimulated oviposition most strongly,while decanoic acid demonstrated a repulsive effect.Females kept in mixed-sex popula-tions were attracted by tetradecanoic acid,resulting in a higher egg mass found in the compound box(3.0-11.4 fold),a ≥ 2.3 fold reduction of nonspecifically deposited eggs,and the highest total egg mass.Conversely,decanoic and dodecanoic acid caused females to lay a greater proportion of eggs nonspecifically outside both boxes.Our data suggest that fatty acids,especially tetradecanoic acid,are important cues for oviposition site selec-tion in black soldier flies.In order to achieve a directed oviposition behavior,the role of further short-and long-chain fatty acids as attractants should be examined.

外文关键词：

black soldier flyHermetia illucensfatty acidsinsects as food and feedovipositionoviposition site selectiontetradecanoic acid

作者：

Patrick Klüber、Emna Arous、Jeanny Jerschow、Marco Fraatz、Daniel Bakonyi、Martin Rühl、Holger Zorn

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作者单位：

Department Bioresources,Fraunhofer Institute for Molecular Biology and Applied Ecology,Giessen,Germanyand

Institute of Food Chemistry and Food Biotechnology,Justus Liebig University Giessen,Giessen,Germany

基金：

Hessian Ministry of Higher Education,Research and the ArtsLOEWE Center for Insect BiotechnologyGerman Federal Ministry for Education and Research(BMBF)grant within the BioBall innovation space

项目编号：

FKZ031B1291BInA

出版年：

2024

DOI：

10.1111/1744-7917.13287

中国昆虫科学(英文版)

中国昆虫学会中科院动物所

中国昆虫科学(英文版)

CSTPCD

影响因子：0.484

ISSN：1672-9609

年,卷(期)：2024.31(4)