Soaking up the oil: Biological impacts of dispersants and crude oil on the sponge Halichondria panicea.
Soaking up the oil: Biological impacts of dispersants and crude oil on the sponge Halichondria panicea.
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DOI：
10.1016/j.chemosphere.2020.127109
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发表时间：
2020-05
期刊：
影响因子：
8.8
通讯作者：
J. Vad;F. Dunnett;F. Liu;C. Montagner;J. Roberts;T. Henry
中科院分区：
文献类型：
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作者：
J. Vad;F. Dunnett;F. Liu;C. Montagner;J. Roberts;T. Henry
在石油泄漏期间使用分散剂以尽量减少浮油的形成，分散剂对海洋模式生物有负面的生物影响。然而，没有研究调查分散剂对成虫个体的影响。本文研究了海水中水容油馏分（WAF -油）、化学增强型WAF （CEWAF -油及海水分散剂）和苯并[A]芘对海绵体halichondriapanicae生理和分子水平的影响。当暴露于WAF和CEWAF时，海绵的清除率急剧下降，但在清除率降低50%时，CEWAF的油负荷（ED50）比WAF低39倍。转录组学分析显示，CEWAF样品中差异表达基因的数量最多（1,461个基因），具有均匀的分子反应。具体来说，与应激反应有关的基因被上调。这项研究提供的证据表明，在存在海绵的地区应仔细考虑分散剂的使用。
Used during an oil spill to minimise the formation of an oil slick, dispersants have negative biological effects on marine model organisms. However, no study has investigated the impacts of dispersants on adult sponge individuals. Here, we examine the effects of water accommodated oil fraction (WAF - oil in seawater), chemically enhanced WAF (CEWAF - oil and dispersant in seawater) and Benzo[A]Pyrene on sponge Halichondriapaniceaat physiological and molecular levels. Sponge clearance rate decreased sharply when exposed to WAF and CEWAF but the oil loading at which the clearance rate was reduced by 50% (ED50) was 39-fold lower in CEWAF than in WAF. Transcriptomic analysis revealed a homogenous molecular response with the greatest number of differentially expressed genes identified in CEWAF samples (1,461 genes). Specifically, genes involved in stress responses were up-regulated. This study presents evidence that the use of dispersants should be considered carefully in areas where sponges are present.