The combined effect of herbicide and Bacillus thuringiensis exposure delays development in the red flour beetle

IF 3.6 3区 生物学 Q1 ZOOLOGY Journal of invertebrate pathology Pub Date : 2024-11-01 DOI:10.1016/j.jip.2024.108227
{"title":"The combined effect of herbicide and Bacillus thuringiensis exposure delays development in the red flour beetle","authors":"","doi":"10.1016/j.jip.2024.108227","DOIUrl":null,"url":null,"abstract":"<div><div>The use of herbicides and their long persistence in the environment have raised concerns about potential harm to ecosystems and human health. However, there is a gap in the knowledge regarding the effects of continuous exposure to residues or admitted field doses on non-target organisms such as insects that inhabit croplands and play key ecological roles. Furthermore, the potential impact of this exposure on host-pathogen interactions remains largely unstudied. This study adopted an eco-immunological perspective, investigating the influence of herbicides on an organism’s interaction with natural pathogens. The impact of this combination of multiple stressors was studied in larvae of the red flour beetle, <em>Tribolium castaneum</em> Herbst, 1797, previously treated with a pendimethalin-based commercial formulation (PND) and exposed to the natural entomopathogen <em>Bacillus thuringiensis</em> (1x10<sup>9</sup>, 1x10<sup>10</sup> cells/mL)<em>.</em> The effects of three PND concentrations (i.e. a recommended field rate, a soil contaminant concentration and the maximum residue limit admitted in grain in EU countries: 4L/ha, 13 and 0.05 ppm, respectively) on life history traits such as developmental time, pupation rate and survival rate and the expression levels of antimicrobial peptides (AMPs) were assessed. The results showed that even at doses considered safe for human consumption or field application, exposure to PND had an impact on beetle larvae, affecting their vulnerability to <em>B. thuringiensis</em>. The combined experience of exposure to PND and <em>B. thuringiensis</em> at the larval stage resulted in a delay of larval development, a reduction in the number of pupae and emerging adults, and alterations in their body condition. Moreover, changes in the expression levels of the analysed AMPs, including Attacin 1, Defensin 2 and Coleoptericin 2, were recorded as markers for immune activity against the bacterium. The findings of this study highlight the general need for further studies on the effects of commonly used herbicides on the physiology of non-target organisms and on host-pathogen interactions at the community level. Additionally, there is a need for the establishment of revised residual levels that are deemed non-toxic to soil organisms and humans.</div></div>","PeriodicalId":16296,"journal":{"name":"Journal of invertebrate pathology","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of invertebrate pathology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022201124001708","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

The use of herbicides and their long persistence in the environment have raised concerns about potential harm to ecosystems and human health. However, there is a gap in the knowledge regarding the effects of continuous exposure to residues or admitted field doses on non-target organisms such as insects that inhabit croplands and play key ecological roles. Furthermore, the potential impact of this exposure on host-pathogen interactions remains largely unstudied. This study adopted an eco-immunological perspective, investigating the influence of herbicides on an organism’s interaction with natural pathogens. The impact of this combination of multiple stressors was studied in larvae of the red flour beetle, Tribolium castaneum Herbst, 1797, previously treated with a pendimethalin-based commercial formulation (PND) and exposed to the natural entomopathogen Bacillus thuringiensis (1x109, 1x1010 cells/mL). The effects of three PND concentrations (i.e. a recommended field rate, a soil contaminant concentration and the maximum residue limit admitted in grain in EU countries: 4L/ha, 13 and 0.05 ppm, respectively) on life history traits such as developmental time, pupation rate and survival rate and the expression levels of antimicrobial peptides (AMPs) were assessed. The results showed that even at doses considered safe for human consumption or field application, exposure to PND had an impact on beetle larvae, affecting their vulnerability to B. thuringiensis. The combined experience of exposure to PND and B. thuringiensis at the larval stage resulted in a delay of larval development, a reduction in the number of pupae and emerging adults, and alterations in their body condition. Moreover, changes in the expression levels of the analysed AMPs, including Attacin 1, Defensin 2 and Coleoptericin 2, were recorded as markers for immune activity against the bacterium. The findings of this study highlight the general need for further studies on the effects of commonly used herbicides on the physiology of non-target organisms and on host-pathogen interactions at the community level. Additionally, there is a need for the establishment of revised residual levels that are deemed non-toxic to soil organisms and humans.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
除草剂和苏云金芽孢杆菌的共同作用会延迟红面粉甲虫的发育。
除草剂的使用及其在环境中的长期持久性引起了人们对生态系统和人类健康潜在危害的关注。然而,关于持续接触残留物或允许的田间剂量对非目标生物(如栖息在农田中并发挥关键生态作用的昆虫)的影响,目前还存在知识空白。此外,这种接触对宿主-病原体相互作用的潜在影响在很大程度上仍未得到研究。本研究从生态免疫学的角度出发,调查除草剂对生物与自然病原体相互作用的影响。研究对象是红面粉甲虫(Tribolium castaneum Herbst, 1797)的幼虫,这些幼虫曾用过以戊唑醇为基础的商业制剂(PND),并接触过天然昆虫病原体苏云金芽孢杆菌(1x109、1x1010 cells/mL)。三种 PND 浓度(即推荐的田间施用量、土壤污染物浓度和欧盟国家允许的谷物中最大残留限量)的影响:4 升/公顷、13 升/公顷和 0 升/公顷:分别为 4 升/公顷、13 和 0.05 ppm)对生命史特征(如发育时间、化蛹率和存活率)以及抗菌肽(AMPs)表达水平的影响进行了评估。结果表明,即使是在人类食用或田间应用安全的剂量下,接触 PND 也会对甲虫幼虫产生影响,影响它们对苏云金杆菌的易感性。在幼虫阶段接触 PND 和苏云金杆菌会导致幼虫发育延迟、蛹和成虫数量减少以及身体状况改变。此外,还记录了所分析的 AMPs(包括 Attacin 1、Defensin 2 和 Coleoptericin 2)表达水平的变化,这些 AMPs 是对苏云金杆菌免疫活性的标志。这项研究的结果突出表明,普遍需要进一步研究常用除草剂对非目标生物生理机能的影响,以及在群落水平上宿主与病原体之间的相互作用。此外,还需要确定对土壤生物和人类无毒的残留水平。
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 去求助
来源期刊
CiteScore
6.10
自引率
5.90%
发文量
94
审稿时长
1 months
期刊介绍: The Journal of Invertebrate Pathology presents original research articles and notes on the induction and pathogenesis of diseases of invertebrates, including the suppression of diseases in beneficial species, and the use of diseases in controlling undesirable species. In addition, the journal publishes the results of physiological, morphological, genetic, immunological and ecological studies as related to the etiologic agents of diseases of invertebrates. The Journal of Invertebrate Pathology is the adopted journal of the Society for Invertebrate Pathology, and is available to SIP members at a special reduced price.
期刊最新文献
Distribution and genetic diversity of Bombyx mori nucleopolyhedrovirus in mass-reared silkworms in Thailand The combined effect of herbicide and Bacillus thuringiensis exposure delays development in the red flour beetle Characteristics of vhvp-2 gene distribution and diversity within the Vibrio causing translucent post-larvae disease (TPD) Isolation and identification of native Chilean entomopathogenic fungi and their potential for the control of Drosophila suzukii. Metacollinia emscheri n. sp., a novel sanguicolous apostome ciliate of freshwater amphipods (Gammarus spp.)
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1