Metarhizium anisopliae infection alters feeding and trophallactic behavior in the ant Solenopsis invicta
文献类型： 外文期刊
作者： Qiu, Hua-Long 1 ; Lu, Li-Hua 2 ; Zalucki, M. P. 3 ; He, Yu-Rong 1 ;
作者机构： 1.South China Agr Univ, Coll Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China
2.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Queensland, Sch Biol Sci, Brisbane, Qld 4072, Australia
关键词： Entomopathogenic fungi;Red imported fire ant;Social behavior;Immunity
期刊名称：JOURNAL OF INVERTEBRATE PATHOLOGY （ 影响因子：2.841； 五年影响因子：3.368 ）
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收录情况： SCI
摘要： In social insects, social behavior may be changed in a way that preventing the spread of pathogens. We infected workers of the ant Solenopsis invicta with an entomopathogenic fungus Metarhizium anisopliae and then videotaped and/or measured worker feeding and trophallactic behavior. Results showed that fungal infected S. invicta enhanced their preference for bitter alkaloid chemical quinine on 3 days after inoculation, which might be self-medication of S. invicta by ingesting more alkaloid substances in response to pathogenic infection. Furthermore, infected ants devoted more time to trophallactic behavior with their nestmates on 3 days post inoculation, in return receiving more food. Increased interactions between exposed ants and their naive nestmates suggest the existence of social immunity in S. invicta. Overall, our study indicates that S. invicta may use behavioral defenses such as self-medication and social immunity in response to a M. anisopliae infection. (C) 2016 Published by Elsevier Inc.
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