Use of an exotic host plant reduces viral burden in a native insect herbivore
Use of an exotic host plant reduces viral burden in a native insect herbivore
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使用外来宿主植物可减少本地食草昆虫的病毒负荷
DOI：
10.1111/ele.14162
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发表时间：
2023
期刊：
影响因子：
8.8
通讯作者：
Smilanich, Angela M.
中科院分区：
文献类型：
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作者：
Muchoney, Nadya D.;Bowers, M. Deane;Carper, Adrian L.;Teglas, Mike B.;Smilanich, Angela M.
在本土食草动物的饮食中加入外来植物是一种常见的现象，影响了与天敌的相互作用，并提供了对饮食扩张的三重成本和好处的洞察。我们评估了外来植物车前草对新热带草食昆虫Anartia jtrephae(鳞翅目：若虫科)免疫性能、发育和对病原体感染的敏感性的影响。毛毛虫是在美国国家石油公司饲养的。一种土生土长的植物，巴氏杆菌，并实验感染了一种致病病毒，朱诺尼娅登革病毒。我们发现，当饲养ONP时，受到病毒挑战的食草动物表现出更高的存活率和更低的病毒负担。与TOB比较。Monnieri，尽管免疫性能和发育时间在这两种植物上基本相似。这些发现揭示了利用外来植物可以影响本地草食动物对病原体感染的脆弱性，这表明食物介导的疾病保护是促进新资源整合的潜在机制。
Incorporation of exotic plants into the diets of native herbivores is a common phenomenon, influencing interactions with natural enemies and providing insight into the tritrophic costs and benefits of dietary expansion. We evaluated how use of an exotic plant,Plantago lanceolata, impacted immune performance, development and susceptibility to pathogen infection in the neotropical herbivoreAnartia jatrophae(Lepidoptera: Nymphalidae). Caterpillars were reared onP. lanceolataor a native plant,Bacopa monnieri, and experimentally infected with a pathogenic virus, Junonia coenia densovirus. We found that virus‐challenged herbivores exhibited higher survival rates and lower viral burdens when reared onP. lanceolatacompared toB. monnieri, though immune performance and development time were largely similar on the two plants. These findings reveal that use of an exotic plant can impact the vulnerability of a native herbivore to pathogen infection, suggesting diet‐mediated protection against disease as a potential mechanism facilitating the incorporation of novel resources.