华南农业大学：虾池中的塑料微粒污染物，可能影响虾的肠道菌群 | 热心肠日报
自然条件下，塑料微粒上的菌群定殖与虾肠道菌群之间的关联
10.1016/j.jhazmat.2020.124882
2020-12-17, Article
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The microplastics pollution in wild aquatic organisms has been described by many studies. However, few studies focused on the farmed ones and MPs impacts on their gut microbiota under natural conditions. Here, we present the first detection of MPs in shrimp ponds and Litopenaeus vannamei. We also globally, firstly and preliminarily investigate the association between colonization of microorganism on MPs and intestinal microbiota under natural conditions. Microplastics (5129 ± 1176 items/kg d.w.) in sediments were mainly pellets, mostly white and blue, and in size less than 1 mm. Microplastics (14.08 ± 5.70 items/g w.w.) in shrimps were higher than that in mostly wild aquatic organisms and positively correlated with that in sediments. Blue fibers in small size (<0.5 mm) were dominant in shrimps. The bacterial communities and their microbial function on MPs were similar with that in shrimp gut, with higher diversity and richness in bacteria communities colonized on MPs. Network analysis demonstrated that the colonization of microorganism on MPs were associated with shrimp intestinal microbiota. Results suggest that except for toxicity reported previously, the effects on intestinal microbiota induced by MPs were possibly because of the biofilm on their surfaces as well, causing notable impacts on aquatic animals.
First Authors:
Muting Yan
Correspondence Authors:
Han Gong
All Authors:
Muting Yan,Weixin Li,Xiaofeng Chen,Yuhui He,Xiaoyong Zhang,Han Gong