Dietary and multitrophic effects of the furanocoumarin xanthotoxin differ between two confamilial generalist herbivores, Chrysodeixis includens and Trichoplusia ni (Lepidoptera: Noctuidae).

IF 1.5 3区 农林科学 Q2 ENTOMOLOGY
Rediate K Degu, Eamon McDaniel, M Wyatt McManus, Kaitlyn M Timmons, Evan C Lampert
{"title":"Dietary and multitrophic effects of the furanocoumarin xanthotoxin differ between two confamilial generalist herbivores, Chrysodeixis includens and Trichoplusia ni (Lepidoptera: Noctuidae).","authors":"Rediate K Degu, Eamon McDaniel, M Wyatt McManus, Kaitlyn M Timmons, Evan C Lampert","doi":"10.1093/ee/nvaf090","DOIUrl":null,"url":null,"abstract":"<p><p>Different generalist herbivore species within a lineage can differ in their responses to a single plant defensive trait. Herbivore responses to plant defensive traits can also influence their interactions with their own natural enemies. Here, we rear 2 generalist herbivores, Trichoplusia ni Hübner (Lepidoptera: Noctuidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae), on artificial diets containing 0%, 0.01%, 0.05%, and 0.10% xanthotoxin. We measured and compared growth rate, body size, and mortality among these 4 dietary xanthotoxin concentrations. C. includens grew more slowly and was more likely to die before adulthood as dietary xanthotoxin increased and also varied in body size. Trichoplusia ni had a higher mortality rate overall, which increased as dietary xanthotoxin increased; however, there were no effects on growth rate and body size for this species. In a second experiment, the same 4 diets were given to larvae of both species parasitized by the polyembryonic parasitoid Copidosoma floridanum Ashmead (Hymenoptera: Encyrtidae), and growth rate, mummy size, and mortality were measured and compared. There were no sublethal effects on growth rate or mummy size, and mortality increased in both herbivore species but was higher in C. includens. These results show that different generalist herbivore species can respond differently to plant defensive traits, possibly due to different levels of adaptations to a specific trait, and these responses can affect higher trophic levels. Further research can compare the multitrophic impacts of variation in responses to plant defensive traits among more generalist herbivores.</p>","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":" ","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Entomology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1093/ee/nvaf090","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Different generalist herbivore species within a lineage can differ in their responses to a single plant defensive trait. Herbivore responses to plant defensive traits can also influence their interactions with their own natural enemies. Here, we rear 2 generalist herbivores, Trichoplusia ni Hübner (Lepidoptera: Noctuidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae), on artificial diets containing 0%, 0.01%, 0.05%, and 0.10% xanthotoxin. We measured and compared growth rate, body size, and mortality among these 4 dietary xanthotoxin concentrations. C. includens grew more slowly and was more likely to die before adulthood as dietary xanthotoxin increased and also varied in body size. Trichoplusia ni had a higher mortality rate overall, which increased as dietary xanthotoxin increased; however, there were no effects on growth rate and body size for this species. In a second experiment, the same 4 diets were given to larvae of both species parasitized by the polyembryonic parasitoid Copidosoma floridanum Ashmead (Hymenoptera: Encyrtidae), and growth rate, mummy size, and mortality were measured and compared. There were no sublethal effects on growth rate or mummy size, and mortality increased in both herbivore species but was higher in C. includens. These results show that different generalist herbivore species can respond differently to plant defensive traits, possibly due to different levels of adaptations to a specific trait, and these responses can affect higher trophic levels. Further research can compare the multitrophic impacts of variation in responses to plant defensive traits among more generalist herbivores.

呋喃香豆素黄毒素的食性和多营养效应在两种家族通用型食草动物黄蝇和毛蝇(鳞翅目:夜蛾科)之间存在差异。
在一个谱系中,不同的多面手食草动物对单一植物防御性状的反应可能不同。草食动物对植物防御性状的反应也会影响它们与天敌的相互作用。本研究用含0%、0.01%、0.05%和0.10%黄毒素的人工饲料饲养了2种多面手食草动物:毛蚤(Lepidoptera:夜蛾科)和黄蛉(Chrysodeixis inclens (Walker))。我们测量并比较了这4种膳食黄毒素浓度的生长率、体型和死亡率。随着膳食中叶黄毒素的增加,C. inclens生长更慢,更有可能在成年前死亡,而且体型也不同。总体而言,随着膳食中叶黄毒素的增加,毛癣菌的死亡率也随之增加;然而,对该物种的生长速度和体型没有影响。二是用多胚寄生蜂(膜翅目:蜂科)寄生两种寄生蜂的幼虫,分别饲喂相同的4种日粮,比较两种寄生蜂的生长速率、木乃伊大小和死亡率。对生长速度和木乃伊大小均无亚致死效应,两种草食动物的死亡率均有所增加,但含沙蚕的死亡率较高。这些结果表明,不同的通才食草动物对植物防御性状的反应不同,可能是由于对特定性状的适应水平不同,这些反应可能影响更高的营养水平。进一步的研究可以比较多面手食草动物对植物防御性状响应变异的多营养影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Environmental Entomology
Environmental Entomology 生物-昆虫学
CiteScore
3.90
自引率
5.90%
发文量
97
审稿时长
3-8 weeks
期刊介绍: Environmental Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment. In addition to research papers, Environmental Entomology publishes Reviews, interpretive articles in a Forum section, and Letters to the Editor.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信