Early microbial biofilm formation on marine plastic debris
Early microbial biofilm formation on marine plastic debris
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DOI：
10.1016/j.marpolbul.2010.10.013
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发表时间：
2011-01-01
影响因子：
5.8
通讯作者：
Cunliffe, Michael
中科院分区：
文献类型：
--
作者：
Lobelle, Delphine;Cunliffe, Michael
全球塑料碎片污染问题的一个重要方面是塑料浮力。有一些证据表明，浮力的影响所附的生物膜，但迄今为止，这是知之甚少。我们将聚乙烯塑料浸没在海水中，每周取样，持续3周，以研究早期过程。微生物生物膜在塑料上迅速发展，并与塑料的理化性质的显着变化相吻合。在实验过程中，浸没的塑料变得不那么疏水，更具有中性浮力。细菌很容易在塑料上定居，但没有迹象表明存在塑料降解微生物。这项研究有助于更好地了解塑料碎片在海洋环境中的命运。(C)2010爱思唯尔有限公司版权所有。
An important aspect of the global problem of plastic debris pollution is plastic buoyancy. There is some evidence that buoyancy is influenced by attached biofilms but as yet this is poorly understood. We submerged polyethylene plastic in seawater and sampled weekly for 3 weeks in order to study early stage processes. Microbial biofilms developed rapidly on the plastic and coincided with significant changes in the physicochemical properties of the plastic. Submerged plastic became less hydrophobic and more neutrally buoyant during the experiment. Bacteria readily colonised the plastic but there was no indication that plastic-degrading microorganisms were present. This study contributes to improved understanding of the fate of plastic debris in the marine environment. (C) 2010 Elsevier Ltd. All rights reserved.