多代蚯蚓接触杀虫剂的影响

IF 3.6 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Environmental Toxicology and Chemistry Pub Date : 2024-07-09 DOI:10.1002/etc.5948
William J. Martin, Paul K. Sibley, Ryan S. Prosser
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引用次数: 0

摘要

新烟碱类杀虫剂及其许多替代杀虫剂对非目标土壤无脊椎动物(如蚯蚓)的毒性以前就已确定。然而,这些物质对这些生物的长期影响在很大程度上还不为人所知。在土壤生态毒理学领域,由于标准化测试方法的可用性及其对实验室培养和测试的适应性,蚯蚓(如 Eisenia andrei)被广泛使用。近年来,多代研究越来越受到欢迎和关注,并转向使用长期测定方法和较低浓度的测试化学品。使用的暴露浓度包括安大略省政府开展的监测计划中测得的浓度,它提供了一种现实的暴露情景,在当代的短期研究中可能不会显示出明显的影响。我们使用当前的标准化测试方法作为对 E. andrei 进行多代研究的基础。通过连续的繁殖试验,观察了单次施用杀虫剂噻虫嗪和氰戊菊酯对 E. andrei 的存活和繁殖的影响,包括三代(噻虫嗪)或两代(氰戊菊酯)。在任何一代中,两种杀虫剂均未报告对成虫存活率产生重大影响,而在噻虫嗪试验中,第一代和第二代之间的繁殖率有所下降,第一代的有效浓度(EC50)中值为 0.022 毫克/千克干重,而第二代的有效浓度(EC50)中值为 0.002 毫克/千克干重。氰虫酰胺的第一代有效浓度为 0.064,第二代为 0.016 毫克/千克干重。噻虫嗪试验完成了第三代,与前几代相比,所有处理和对照组的繁殖率都显著下降。在第三代中,噻虫嗪处理与对照处理之间没有明显差异。总之,这些数据表明,寡毛目昆虫接触这两种杀虫剂(浓度代表田间条件)可能会导致长期压力。环境毒物化学 2024;00:1-13。© 2024 作者。环境毒理学与化学》由 Wiley Periodicals LLC 代表 SETAC 出版。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Effect of Insecticide Exposure Across Multiple Generations of the Earthworm Eisenia andrei

The toxicity of neonicotinoids and many of their replacement insecticides to nontarget soil invertebrates such as earthworms has previously been established. However, the long-term effects of these substances on these organisms are largely unknown. In the field of soil ecotoxicology, lumbricid earthworms such as Eisenia andrei are used extensively due to the availability of standardized test methods and their adaptability to laboratory culture and testing. Multigenerational studies have gained popularity and attention in recent years, with a shift toward the use of long-term assays and lower concentrations of test chemicals. The use of exposure concentrations that include those measured in a monitoring program carried out by the Government of Ontario presents a realistic exposure scenario that may not show significant effects in contemporary, shorter term studies. We used current standardized test methods as a basis for the development of multigenerational studies on E. andrei. The effects of exposure to a single application of the insecticides thiamethoxam and cyantraniliprole on the survival and reproduction of E. andrei were observed over three (thiamethoxam) or two (cyantraniliprole) generations using consecutive reproduction tests. No significant impacts on adult survival were reported in any generation for either insecticide, whereas reproduction decreased between the first and second generations in the thiamethoxam test, with median effective concentration (EC50) values of 0.022 mg/kg dry weight reported for the first generation compared with 0.002 mg/kg dry weight in the second generation. For cyantraniliprole, an EC50 of 0.064 was determined for the first generation compared with 0.016 mg/kg dry weight in the second generation. A third generation was completed for the thiamethoxam test, and a significant decrease in reproduction was observed in all treatments and controls compared with previous generations. No significant difference between thiamethoxam treatments and the control treatment was reported for the third generation. Collectively, these data indicate that exposure of oligochaetes to these two insecticides at concentrations representative of field conditions may result in long-term stresses. Environ Toxicol Chem 2024;43:2058–2070. © 2024 The Author(s). Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

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来源期刊
CiteScore
7.40
自引率
9.80%
发文量
265
审稿时长
3.4 months
期刊介绍: The Society of Environmental Toxicology and Chemistry (SETAC) publishes two journals: Environmental Toxicology and Chemistry (ET&C) and Integrated Environmental Assessment and Management (IEAM). Environmental Toxicology and Chemistry is dedicated to furthering scientific knowledge and disseminating information on environmental toxicology and chemistry, including the application of these sciences to risk assessment.[...] Environmental Toxicology and Chemistry is interdisciplinary in scope and integrates the fields of environmental toxicology; environmental, analytical, and molecular chemistry; ecology; physiology; biochemistry; microbiology; genetics; genomics; environmental engineering; chemical, environmental, and biological modeling; epidemiology; and earth sciences. ET&C seeks to publish papers describing original experimental or theoretical work that significantly advances understanding in the area of environmental toxicology, environmental chemistry and hazard/risk assessment. Emphasis is given to papers that enhance capabilities for the prediction, measurement, and assessment of the fate and effects of chemicals in the environment, rather than simply providing additional data. The scientific impact of papers is judged in terms of the breadth and depth of the findings and the expected influence on existing or future scientific practice. Methodological papers must make clear not only how the work differs from existing practice, but the significance of these differences to the field. Site-based research or monitoring must have regional or global implications beyond the particular site, such as evaluating processes, mechanisms, or theory under a natural environmental setting.
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Correction. Spotlights are papers selected by editors published in peer-reviewed journals that may be more regionally specific or appearing in languages other than English Issue Information - Cover Editorial Board and Table of Contents Detection and Prediction of Toxic Aluminum Concentrations in High-Priority Salmon Rivers in Nova Scotia.
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