文献类型：期刊文献

英文题名：The effect of polychlorinated biphenyls extracted from offshore sediments on the intestinal epithelium and microflora of zebrafish

作者：Zhang, M.[1];Zhu, D-H[1];Song, Q-L[1];Chen, M-M[1];Hu, Y.[1];Kang, D-J[1];Chen, Z-B[1];Lin, H-Y[1];Nie, F-H[2];Chen, J-J[1]

机构：[1]Guangdong Ocean Univ, Coll Coastal Agr Sci, Dept Vet Med, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang, Guangdong, Peoples R China

年份：2023

卷号：20

期号：11

起止页码：12731

外文期刊名：INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000905601700008)、、EI(收录号：20230113324422)、Scopus(收录号：2-s2.0-85145106395)、WOS

基金：Marine Economic Development Project of Guangdong Province Special Fund for Promoting High-quality Economic Development (Contract grant number: GDOE2019A52) and International Science and Technology Cooperation Project of Guangdong Province (Contract grant number: 2016A050502062).

语种：英文

外文关键词：Bacterial flora; Environment; Extracts; Histopathology

外文摘要：Polychlorinated biphenyls are widespread, especially in the marine environment, where they may accumulate in several creatures in the food chain, contaminating fishmeal and seafood as well as posing a health hazard to animals and humans. In this study, we analyzed the effects of polychlorinated biphenyls extracted from sediments near the coast of Zhanjiang on the intestinal tissues and intestinal flora of adult zebrafish. Zebrafish were exposed to different doses of polychlorinated biphenyls extracts (0, 5, 10, and 15 mu g/L) and treated at 1, 3, 5, and 7 d, respectively. The results showed that the intestinal epithelial lesions of zebrafish increased with increasing exposure duration and polychlorinated biphenyls concentrations. Analysis of the composition and abundance of microbial colonies at the phylum level revealed that the proportion of each species of bacteria in the various concentration groups varied considerably with increasing exposure duration, but not with rising polychlorinated biphenyls concentrations. This suggests that the proportion of the dominant flora was highly dependent on the exposure time rather than the polychlorinated biphenyls concentration.