Bioaccumulation of Polycyclic Aromatic Hydrocarbons (PAHs) by the Marine Clam, Mactra veneriformis, Chronically Exposed to Oil- Suspended Particulate Matter Aggregates

Noh Junsung; Kim Hosang; Lee Changkeun; Yoon Seo Joon; Chu Seungoh; Kwon Bong-Oh; Ryu Jongseong; Kim Jae-Jin; Lee Hanbyul; Yim Un Hyuk; Giesy John P.; Khim Jong Seong

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Bioaccumulation of Polycyclic Aromatic Hydrocarbons (PAHs) by the Marine Clam, Mactra veneriformis, Chronically Exposed to Oil- Suspended Particulate Matter Aggregates

机译：蛤，Mactra veneriformis长期暴露于油悬浮颗粒物聚集物中的多环芳烃（PAH）的生物累积

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Dispersion and biodegradation of petroleum hydrocarbons are significantly enhanced by formation of oil-suspended particulate matter aggregates (OSAs), but little is known about their adverse effects on benthic invertebrates or microbes. In this study, we investigated: (1) bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) by the marine bivalve, Mactra veneriformis and (2) changes in composition and relative abundances of microbes, during 50-d of an OSAs feeding experiment. Total concentrations of PAHs increased more rapidly during the first week of exposure, peaked at Day 30, then gradually declined to the end of experiment. While bioaccumulation of PAHs by clams varied among the 20 target compounds, two major groups of PAHs were identified by cluster analysis. One group including 3-methylphenanthrene, 1,6-dimethylphenanthrene, 1,2,6,9-tetrame-thylphenanthrene, and benzo[a]anthracene showed a fairly constant rate of accumulation, while the second group including 2-methyldibenzothiophene, 2,4-dimethyldibenzothiophene, 2,4,7-trimethyldibenzothiophene, 3-methylchrysene, 6-ethylchrysene, and 1,3,6-trimethylchrysene exhibited a bell-shaped pattern. Bioaccumulation of PAHs by clams was dependent on changes in abundance of Gammaproteobacteria, indicating active degradations of hydrocarbons by selected species. Six key species included: Porticoccus litoralis, Porticoccus hydrocarbonoclasticus, Cycloclasticus spirillensus, Alcanivorax borkumensis, Alcanivorax dieselolei, and Alkalimarinus sediminis. These results are the first to demonstrate interactions of OSAs and macrofauna/microbe in oil cleanup operations.

机译：石油悬浮颗粒物聚集体（OSA）的形成显着增强了石油烃的分散性和生物降解性，但人们对其底栖无脊椎动物或微生物的不利影响知之甚少。在这项研究中，我们调查了：（1）海洋双壳类动物Mactra veneriformis对多环芳烃（PAHs）的生物富集，以及（2）在OSA饲喂实验的50天中，微生物的组成和相对丰度发生了变化。在暴露的第一周，PAHs的总浓度增加更快，在第30天达到峰值，然后逐渐下降到实验结束。尽管蛤target对PAHs的生物富集在20种目标化合物中有所不同，但通过聚类分析确定了两组主要的PAHs。包括3-甲基菲，1,6-二甲基菲，1,2,6,9-四甲基-菲菲和苯并[a]蒽的一组显示出相当恒定的积累速率，而第二组包括2-甲基二苯并噻吩，2 4-二甲基二苯并噻吩，2,4,7-三甲基二苯并噻吩，3-甲基ch，6-乙基ch和1,3,6-三甲基ch呈现出钟形图案。蛤类对PAHs的生物积累取决于γ-变形杆菌细菌的丰度变化，表明碳氢化合物被选定物种活跃降解。六个关键物种包括：斜纹枯菌，破壁隐球菌，spirocensus spirillensusus，bocanumensis，Alcanivorax柴油和Alkalimarinus sediminis。这些结果是第一个证明OSA与大型动物/微生物在油清除操作中的相互作用的结果。

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《Environmental Science & Technology》 |2018年第14期|7910-7920|共11页
作者
Noh Junsung; Kim Hosang; Lee Changkeun; Yoon Seo Joon; Chu Seungoh; Kwon Bong-Oh; Ryu Jongseong; Kim Jae-Jin; Lee Hanbyul; Yim Un Hyuk; Giesy John P.; Khim Jong Seong;
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作者单位

Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea;

Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea;

Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea;

Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea;

Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea;

Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea;

Anyang Univ, Dept Marine Biotechnol, Incheon, South Korea;

Korea Univ, Div Environm Sci & Ecol Engn, Seoul, South Korea;

Korea Univ, Div Environm Sci & Ecol Engn, Seoul, South Korea;

Korea Inst Ocean Sci & Technol, Oil & POPs Res Grp, Geoje, South Korea;

Univ Saskatchewan, Dept Vet Biomed Sci, Saskatoon, SK, Canada;

Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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Bioaccumulation of Polycyclic Aromatic Hydrocarbons (PAHs) by the Marine Clam, Mactra veneriformis, Chronically Exposed to Oil- Suspended Particulate Matter Aggregates

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