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化生态毒性:揭示土壤和河流生态系统的风险,了解微生物弹性

Antonio Valenzuela¹, Diego Ballestero¹, Cristina Gan¹

¹Faculty of Health Sciences, Universidad San Jorge, Villanueva de Gállego, 50830 Zaragoza, Spain.

|February 23, 2024

概括

化 (HQ) 对水生和土壤生物有毒,在不同物种中观察到不同的敏感性. 微生物群落部分地缓解了HQQ.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
微生物学微生物学

背景情况:

化 (HQ) 在工业上广泛使用,但其环境安全性尚未得到充分理解.
鉴于其广泛应用,评估HQ对水生和陆生生态系统的影响至关重要.

研究的目的:

评估化 (HQ) 对土壤和河流生态系统的生态毒理学影响.
确定HQ对各种非目标指标生物和微生物群落的影响.

主要方法:

使用指标生物体测试的HQ毒性: *Daphnia magna*, *Aliivibrio fischeri*, *Allium cepa* 和 *Eisenia fetida*. 这两种生物的毒性均为标志性.
分析了河流和土壤样本中的微生物社区反应,使用16S rRNA基因测序和Biolog EcoPlateTM测试.

主要成果:

*Daphnia magna*对HQ最敏感 (EC50 = 0.142μg/mL),而*Eisenia fetida*表现出最高的耐药性 (EC50 = 234 mg/Kg).
河流和土壤环境中的微生物群落表现出能够减轻HQ的影响的能力.
土壤微生物群落表现出高达100μg/mL的弹性,在较高度下对生长和新陈代谢产生重大影响.

结论:

化对各种热量级构成显著的生态毒理学风险.
微生物群落在减轻水源污染方面发挥着作用,但监管措施仍然是必要的.

关键词:

艾利维布里奥·菲舍里 (Aliivibrio fischeri) 是一个鱼类生物.艾利姆·塞帕 (Allium cepa) 是一种葡萄.达夫尼亚大 (Daphnia magna) 是一个大的植物.铁血的胎儿是没有的.剧烈毒性的急性毒性基诺是一种化.微生物群落中的微生物群落.

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