Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)

The ever-increasing production and processing of textiles will lead to greater risks of releasing pollutants into the environment. Textile wastewater treatment plants (TWTPs) effluent are an important source of persistent toxic pollutants in receiving water bodies. The effects of specific pollutants...

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Autores principales:	Chun Wang, Zixi Yuan, Yingxue Sun, Xiaolong Yao, Ruixuan Li, Shuangshuang Li
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	textile effluent Danio rerio chronic toxicity antioxidant inflammatory response intestinal microbiota Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/4af30417db9042cb85bb25dde971a5b2
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spelling	oai:doaj.org-article:4af30417db9042cb85bb25dde971a5b22021-12-01T01:43:19ZEffect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)1664-302X10.3389/fmicb.2021.782611https://doaj.org/article/4af30417db9042cb85bb25dde971a5b22021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.782611/fullhttps://doaj.org/toc/1664-302XThe ever-increasing production and processing of textiles will lead to greater risks of releasing pollutants into the environment. Textile wastewater treatment plants (TWTPs) effluent are an important source of persistent toxic pollutants in receiving water bodies. The effects of specific pollutants on organisms are usually studied under laboratory conditions, and therefore, comprehensive results are not obtained regarding the chronic combined effects of pollutants under aquatic environmental conditions. Thus, this study aimed to determine the combined effects of TWTP effluents on the growth performance, oxidative stress, inflammatory response, and intestinal microbiota of adult zebrafish (Danio rerio). Exposure to TWTP effluents significantly inhibited growth, exacerbated the condition factor, and increased the mortality of adult zebrafish. Moreover, markedly decreases were observed in the activities of antioxidant enzymes, such as CAT, GSH, GSH-Px, MDA, SOD, and T-AOC, mostly in the intestine and muscle tissues of zebrafish after 1 and 4 months of exposure. In addition, the results demonstrated that TWTP effluent exposure affected the intestinal microbial community composition and decreased community diversity. Slight changes were found in the relative abundance of probiotic Lactobacillus, Akkermansia, and Lactococcus in zebrafish guts after chronic TWTP effluent exposure. The chronic toxic effects of slight increases in opportunistic pathogens, such as Mycoplasma, Stenotrophomonas, and Vibrio, deserve further attention. Our results reveal that TWTP effluent exposure poses potential health risks to aquatic organisms through growth inhibition, oxidative stress impairment of the intestine and muscles, and intestinal microbial community alterations.Chun WangChun WangZixi YuanZixi YuanYingxue SunYingxue SunXiaolong YaoXiaolong YaoRuixuan LiRuixuan LiShuangshuang LiFrontiers Media S.A.articletextile effluentDanio reriochronic toxicityantioxidantinflammatory responseintestinal microbiotaMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	textile effluent Danio rerio chronic toxicity antioxidant inflammatory response intestinal microbiota Microbiology QR1-502
spellingShingle	textile effluent Danio rerio chronic toxicity antioxidant inflammatory response intestinal microbiota Microbiology QR1-502 Chun Wang Chun Wang Zixi Yuan Zixi Yuan Yingxue Sun Yingxue Sun Xiaolong Yao Xiaolong Yao Ruixuan Li Ruixuan Li Shuangshuang Li Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)
description	The ever-increasing production and processing of textiles will lead to greater risks of releasing pollutants into the environment. Textile wastewater treatment plants (TWTPs) effluent are an important source of persistent toxic pollutants in receiving water bodies. The effects of specific pollutants on organisms are usually studied under laboratory conditions, and therefore, comprehensive results are not obtained regarding the chronic combined effects of pollutants under aquatic environmental conditions. Thus, this study aimed to determine the combined effects of TWTP effluents on the growth performance, oxidative stress, inflammatory response, and intestinal microbiota of adult zebrafish (Danio rerio). Exposure to TWTP effluents significantly inhibited growth, exacerbated the condition factor, and increased the mortality of adult zebrafish. Moreover, markedly decreases were observed in the activities of antioxidant enzymes, such as CAT, GSH, GSH-Px, MDA, SOD, and T-AOC, mostly in the intestine and muscle tissues of zebrafish after 1 and 4 months of exposure. In addition, the results demonstrated that TWTP effluent exposure affected the intestinal microbial community composition and decreased community diversity. Slight changes were found in the relative abundance of probiotic Lactobacillus, Akkermansia, and Lactococcus in zebrafish guts after chronic TWTP effluent exposure. The chronic toxic effects of slight increases in opportunistic pathogens, such as Mycoplasma, Stenotrophomonas, and Vibrio, deserve further attention. Our results reveal that TWTP effluent exposure poses potential health risks to aquatic organisms through growth inhibition, oxidative stress impairment of the intestine and muscles, and intestinal microbial community alterations.
format	article
author	Chun Wang Chun Wang Zixi Yuan Zixi Yuan Yingxue Sun Yingxue Sun Xiaolong Yao Xiaolong Yao Ruixuan Li Ruixuan Li Shuangshuang Li
author_facet	Chun Wang Chun Wang Zixi Yuan Zixi Yuan Yingxue Sun Yingxue Sun Xiaolong Yao Xiaolong Yao Ruixuan Li Ruixuan Li Shuangshuang Li
author_sort	Chun Wang
title	Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)
title_short	Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)
title_full	Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)
title_fullStr	Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)
title_full_unstemmed	Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)
title_sort	effect of chronic exposure to textile wastewater treatment plant effluents on growth performance, oxidative stress, and intestinal microbiota in adult zebrafish (danio rerio)
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/4af30417db9042cb85bb25dde971a5b2
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Effect of Chronic Exposure to Textile Wastewater Treatment Plant Effluents on Growth Performance, Oxidative Stress, and Intestinal Microbiota in Adult Zebrafish (Danio rerio)

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