Negative effects on the adaptive strategies of the lizards (Eremias argus) under starvation after exposure to Glufosinate-ammonium

IF 3.9 3区 环境科学与生态学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Comparative Biochemistry and Physiology C-toxicology & Pharmacology Pub Date : 2024-09-07 DOI:10.1016/j.cbpc.2024.110036
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Abstract

Herbicide exposure poses a higher risk to reptiles due to their frequent contact with soil. Besides, food restriction is also a common environmental pressure that can seriously affect the survival of reptiles. The adaptive strategies of reptiles in the face of emerging herbicide pollution and food shortage challenges are not yet known. Therefore, Eremias Argus (a kind of small reptile) was selected as the model to simulate the real scenario of food shortage in lizards, aiming to explore the comprehensive impact of glufosinate-ammonium (GLA: an emerging herbicide) and food restriction on lizards. The results revealed that lizards often regulate their physiological and biochemical activities through body thermal selection and tend to choose lower body temperature, reduce digestibility, and actively participate in fat energy mobilization to avoid oxidative damage in the state of hunger, finally in order to achieve homeostasis. However, herbicide GLA disrupted the lizards' efforts to resist the stress of food shortage and interfered with the normal thermoregulation and energy mobilization strategies of lizards facing starvation. The results of this study would improve our understanding of the impacts of Lizards under extreme stresses, help supplement reptile toxicology data and provide scientific basis for the risk assessment of herbicide GLA.

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暴露于草铵膦后,饥饿对蜥蜴(Eremias argus)适应策略的负面影响
由于爬行动物经常接触土壤,接触除草剂对它们构成的风险更高。此外,食物限制也是严重影响爬行动物生存的常见环境压力。面对新出现的除草剂污染和食物短缺挑战,爬行动物的适应策略尚不清楚。因此,研究人员选择了小型爬行动物阿古斯(Eremias Argus)作为模型,模拟蜥蜴食物短缺的真实场景,旨在探讨草铵膦和食物限制对蜥蜴的综合影响。结果发现,蜥蜴常通过体热选择来调节其生理生化活动,在饥饿状态下倾向于选择较低的体温,降低消化率,并积极参与脂肪能量动员以避免氧化损伤,最终达到体内平衡。然而,除草剂GLA破坏了蜥蜴抵抗食物短缺应激的努力,干扰了蜥蜴面临饥饿时正常的体温调节和能量动员策略。该研究结果将有助于我们了解蜥蜴在极端胁迫下所受到的影响,有助于补充爬行动物毒理学数据,为除草剂GLA的风险评估提供科学依据。
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来源期刊
CiteScore
7.50
自引率
5.10%
发文量
206
审稿时长
30 days
期刊介绍: Part C: Toxicology and Pharmacology. This journal is concerned with chemical and drug action at different levels of organization, biotransformation of xenobiotics, mechanisms of toxicity, including reactive oxygen species and carcinogenesis, endocrine disruptors, natural products chemistry, and signal transduction with a molecular approach to these fields.
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