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Representativeness of Folsomia candida to assess toxicity of a new generation insecticide in different temperature scenarios
Science of the Total Environment ( IF 8.2 ) Pub Date : 2022-05-04 , DOI: 10.1016/j.scitotenv.2022.155712
Patrícia Ferreira 1 , Antonieta Gabriel 2 , José Paulo Sousa 1 , Tiago Natal-da-Luz 1
Affiliation  

Climate change may interfere with the behavior of pesticides and organisms, influencing pesticides toxicity to non-target organisms like collembolans. Aiming to assess the representativeness of the standardized species F. candida to the Collembola group under different temperatures, four species of collembolans - Folsomia candida, Folsomia fimetaria, Proisotoma minuta and Sinella curviseta – were exposed to a new generation insecticide of Chlorantraniliprole, under the standardized temperature of 20 °C, and a temperature foreseeing a global warming scenario of 25 °C. Results showed that F. candida, F. fimetaria and P. minuta were sensitive to Chlorantraniliprole at both temperatures, while S. curviseta was insensitive to the insecticide concentrations up to 457 mg a.i./kg of soil, regardless of the temperature. The sensitivity of F. candida and P. minuta was significantly higher at 25 °C than at 20 °C, while F. fimetaria and S. curviseta remained equally sensitive/insensitive to both temperatures. Results suggest that F. candida can be representative of F. fimetaria under standard conditions but not for F. fimetaria under 25 °C nor for P. minuta and S. curviseta under both temperatures due to the higher sensitivity of F. candida. On the other hand, due to its higher sensitivity, F. candida can be used to define environmentally protective measures (at both test temperatures) but the use of additional Collembola species is recommended to avoid the definition of over-protective goals.

中文翻译:


Folsomia candida 在不同温度情景下评价新一代杀虫剂毒性的代表性



气候变化可能会干扰杀虫剂和生物的行为,从而影响杀虫剂对弹尾虫等非目标生物的毒性。为了评估标准化物种念珠菌在不同温度下对弹尾菌群的代表性,四种弹尾虫 - Folsomia candida、Folsomia fimetaria、Proisotoma minuta 和 Sinella curviseta - 在 20 °C 的标准化温度下暴露于新一代杀虫剂氯虫苯甲酰胺,温度预见全球变暖情景为 25 °C。 结果表明,念珠菌、菲美塔镰刀菌和细假单胞菌在两个温度下都对氯虫苯甲酰胺敏感,而曲链球菌对高达 457 mg a.i./kg 土壤的杀虫剂浓度不敏感,无论温度如何。25 °C 时念珠菌和 P. minuta 的敏感性显著高于 20 °C 时,而 F. fimetaria 和 S. curviseta 对两种温度保持同样敏感/不敏感。结果表明,由于念珠菌的敏感性较高,因此在标准条件下,念珠菌可以代表 F. fimetaria,但在 25 °C 下不能代表 F. fimetaria,在两种温度下都不能代表 P. minuta 和 S. curviseta。另一方面,由于其较高的敏感性,念珠菌可用于定义环境保护措施(在两种测试温度下),但建议使用其他弹尾虫物种以避免定义过度保护目标。
更新日期:2022-05-04
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