Previous encapsulation response enhances within individual protection against fungal parasite in the mealworm beetle Tenebrio mofitor  

作　　者：Indrikis Krams Janina Daukste Inese Kivleniece Tatjana Krama Markus J. Rantala 

机构地区：[1]Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia [2]Institute of Systematic Biology, University of Daugavpils, Daugavpils [3]Institute of Food Safety, Animal Health and Environment BIOR, Riga, Latvia [4]Department of Biology, University of Turku, Turku, Finland

出　　处：《Insect Science》2013年第6期771-777,共7页昆虫科学（英文版）

摘　　要：Immune defenses of insects show either broad reactions or specificity and durability of induced protection against attacking parasites and pathogens. In this study, we tested whether encapsulation response against nylon monofilament increases between two attempts of activation of immune system in mealworm beetles Tenebrio molitor, and whether previous exposure to nylon monofilament may also increase protection against an entomopathogenic fungus. We found that survival of beetles subjected to immune activation by nylon implant and subsequent fungal exposure a week later was significantly higher than survival of beetles which had been subjected to fimgal infection only. This result suggests that previous immune activation by the nylon implant may be considered as broad spectrum ＂immune priming＂ which helps to fight not only the same intruder but also other parasites.Immune defenses of insects show either broad reactions or specificity and durability of induced protection against attacking parasites and pathogens. In this study, we tested whether encapsulation response against nylon monofilament increases between two attempts of activation of immune system in mealworm beetles Tenebrio molitor, and whether previous exposure to nylon monofilament may also increase protection against an entomopathogenic fungus. We found that survival of beetles subjected to immune activation by nylon implant and subsequent fungal exposure a week later was significantly higher than survival of beetles which had been subjected to fimgal infection only. This result suggests that previous immune activation by the nylon implant may be considered as broad spectrum ＂immune priming＂ which helps to fight not only the same intruder but also other parasites.

关 键 词：antifungal protection ecological immunology encapsulation response immune priming invertebrate immunity Tenebrio molitor 

分 类 号：S476.12[农业科学—农业昆虫与害虫防治] S899.9[农业科学—植物保护]