A preliminary study of the association between colonization of microorganism on microplastics and intestinal microbiota in shrimp under natural conditions.
A preliminary study of the association between colonization of microorganism on microplastics and intestinal microbiota in shrimp under natural conditions.
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DOI：
10.1016/j.jhazmat.2020.124882
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发表时间：
2020-12
影响因子：
13.6
通讯作者：
Muting Yan;Weixin Li;Xiaofeng Chen;Yuhui He;Xiaoyong Zhang;Han Gong
中科院分区：
文献类型：
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作者：
Muting Yan;Weixin Li;Xiaofeng Chen;Yuhui He;Xiaoyong Zhang;Han Gong
许多研究已经描述了野生水生生物中的微塑料污染。然而，很少有研究集中在自然条件下养殖的和MP对肠道菌群的影响。本研究首次在虾池和凡纳滨对虾中检测到MP。我们还在全球范围内首次初步研究了自然条件下微生物在MP上的定殖与肠道微生物群之间的关系。微塑料（5129 ± 1176个/公斤干重）沉积物中主要为颗粒状，多为白色和蓝色，粒径小于1 mm。微塑料（14.08 ± 5.70个/g w.w.）虾类中的有机质含量高于大多数野生水生生物，并与沉积物中的有机质含量呈正相关。小虾的蓝色纤维以<0.5mm的纤维为主。MP上的细菌群落及其功能与虾肠道中的细菌群落相似，具有更高的多样性和丰富度。网络分析表明，MP上微生物的定殖与虾肠道微生物群有关。结果表明，除了先前报道的毒性外，MP对肠道微生物群的影响可能也是由于其表面的生物膜，对水生动物造成显着影响。
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 andLitopenaeus 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.