Current Research in Insect Science最新文献

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Prey identity but not prey quality affects spider performance 猎物的身份而不是猎物的质量影响蜘蛛的性能
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2021.100013
Gina M. Wimp , Danny Lewis , Shannon M. Murphy
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引用次数: 2
Resistance and survival to extreme heat shows circadian and sex-specific patterns in A cavity nesting bee 对极端高温的抵抗和生存显示了一个腔巢蜜蜂的昼夜节律和性别特异性模式
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2021.100020
Tayia Hayes , Giancarlo López-Martínez
{"title":"Resistance and survival to extreme heat shows circadian and sex-specific patterns in A cavity nesting bee","authors":"Tayia Hayes ,&nbsp;Giancarlo López-Martínez","doi":"10.1016/j.cris.2021.100020","DOIUrl":"10.1016/j.cris.2021.100020","url":null,"abstract":"<div><p>The pollination services provided by insects have been a crucial part of evolution and survival for many species, including humans. For bees to be efficient pollinators they must survive the environmental insults they face daily. Thus, looking into the short- and long-term effects of heat exposure on bee performance provides us with a foundation for investigating how stress can affect insect pollination. Solitary bees are a great model for investigating the effects of environmental stress on pollinators because the vast majority of insect pollinator species are solitary rather than social. One of the most pervasive environmental stressors to insects is temperature. Here we investigated how a one-hour heat shock affected multiple metrics of performance in the alfalfa leafcutting bee, <em>Megachile rotundata</em>. We found that a short heat shock (1hr at 45°C) can delay adult emergence in males but not females. Bee pupae were rather resilient to a range of high temperature exposures that larvae did not survive. Following heat shock (1hr at 50°C), adult bees were drastically less active than untreated bees, and this reduction in activity was evident over several days. Heat shock also led to a decrease in bee survival and longevity. Additionally, we found a connection between starvation survival after heat shock and time of exposure, where bees exposed in the morning survived longer than those exposed in the afternoon, when they would normally experience heat shock in the field. These data suggest that there is an unexplored daily/circadian component to the stress response in bees likely similar to that seen in flies, nematodes, and plants which is constitutive or preemptive rather than restorative. Taken together our data indicate that single heat shock events have strong potential to negatively impact multiple life history traits correlated with reproduction and fitness.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 ","pages":"Article 100020"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/50/13/main.PMC9387514.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40653137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Capturing the transcription factor interactome in response to sub-lethal insecticide exposure 捕获转录因子相互作用组对亚致死杀虫剂暴露的反应
Current Research in Insect Science Pub Date : 2020-11-27 DOI: 10.1101/2020.11.26.399691
V. Ingham, S. Elg, Sanjay C. Nagi, F. Dondelinger
{"title":"Capturing the transcription factor interactome in response to sub-lethal insecticide exposure","authors":"V. Ingham, S. Elg, Sanjay C. Nagi, F. Dondelinger","doi":"10.1101/2020.11.26.399691","DOIUrl":"https://doi.org/10.1101/2020.11.26.399691","url":null,"abstract":"The increasing levels of pesticide resistance in agricultural pests and disease vectors represents a threat to both food security and global health. As insecticide resistance intensity strengthens and spreads, the likelihood of a pest encountering a sub-lethal dose of pesticide dramatically increases. Here, we apply dynamic Bayesian networks to a transcriptome time-course generated using sub-lethal pyrethroid exposure on a highly resistant Anopheles coluzzii population. The model accounts for circadian rhythm and ageing effects allowing high confidence identification of transcription factors with key roles in pesticide response. The associations generated by this model show high concordance with lab-based validation and identifies 44 transcription factors regulating insecticide-responsive transcripts. We identify six key regulators, with each displaying differing enrichment terms, demonstrating the complexity of pesticide response. The considerable overlap of resistance mechanisms in agricultural pests and disease vectors strongly suggests that these findings are relevant in a wide variety of pest species.","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47265865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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