...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecotoxicology and Environmental Safety >Accumulation of polybrominated diphenyl ethers and microbiome response in the great pond snail Lymnaea stagnate with exposure to nylon (polyamide) microplastics
【24h】

Accumulation of polybrominated diphenyl ethers and microbiome response in the great pond snail Lymnaea stagnate with exposure to nylon (polyamide) microplastics

机译：暴露于尼龙（聚酰胺）微塑料的大塘田蜗牛Lymnaea stagnate中多溴联苯醚的积累和微生物组反应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Microplastics attract widespread attention, including for their potential to transport toxic chemicals in the form of plasticisers and associated hydrophobic organic chemicals, such as polybrominated diphenyl ethers (PBDEs). The aims of this study were to investigate how nylon (polyamide) microplastics may affect PBDE accumulation in snails, and the acute effects of nylon particles and PBDEs on survival, weight change and inherent microbiome diversity and community composition of the pond snail Lymnaea stagnalis. Snails were exposed for 96 h to BDEs-47, 99, 100 and 153 in the presence and absence of 1% w/w nylon microplastics in quartz sand sediment. No mortality was observed over the exposure period. Snails not exposed to microplastics lost significantly more weight compared to those exposed to microplastics. Increasing PBDE concentration in the sediment resulted in an increased PBDE body burden in the snails, however microplastics did not significantly influence total PBDE uptake. Based on individual congeners, uptake of BDE 47 by snails was significantly reduced in the presence of microplastics. The diversity and composition of the snail microbiome was not significantly altered by the presence of PBDEs nor by the microplastics, singly or combined. Significant effects on a few individual operational taxonomic units (OTUs) occurred when comparing the highest PBDE concentration with the control treatment, but in the absence of microplastics only. Overall within these acute experiments, only subtle effects on weight loss and slight microbiome alterations occurred. These results therefore highlight that L. stagnalis are resilient to acute exposures to microplastics and PBDEs, and that microplastics are unlikely to influence HOC accumulation or the microbiome of this species over short timescales.
机译：微塑料引起了广泛的关注，包括其以增塑剂和相关的疏水性有机化学品（例如多溴二苯醚（PBDEs））形式运输有毒化学品的潜力。这项研究的目的是调查尼龙（聚酰胺）微塑料如何影响蜗牛中多溴二苯醚的积累，以及尼龙颗粒和多溴二苯醚对池塘蜗牛长翅目蛙的存活，体重变化和固有微生物组多样性以及群落组成的急性影响。在存在和不存在石英砂沉积物中1％w / w尼龙微塑料的情况下，将蜗牛暴露于BDEs-47、99、100和153暴露96小时。在暴露期间未观察到死亡率。与暴露于微塑料的蜗牛相比，未暴露于微塑料的蜗牛损失的重量明显更多。沉积物中多溴二苯醚浓度的增加导致蜗牛体内多溴二苯醚的身体负担增加，但是微塑料并没有显着影响总多溴二苯醚的摄入。基于个体同源物，在存在微塑料的情况下，蜗牛对BDE 47的吸收显着降低。不论是多溴二苯醚的存在还是微塑料的单独或组合作用，蜗牛微生物组的多样性和组成都没有明显改变。当将最高PBDE浓度与对照处理进行比较时，对几个单独的操作分类单位（OTU）产生了显着影响，但仅在没有微塑料的情况下。总体而言，在这些急性实验中，仅对体重减轻产生了细微影响，微生物组发生了轻微变化。因此，这些结果表明，葡萄球菌对急性暴露于微塑料和多溴二苯醚具有抵抗力，而且微塑料不太可能在短时间内影响HOC积累或该物种的微生物组。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号