一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> Bioresource Technology >>article
Bioresource Technology

Bioresource Technology

IF: 9.7
Download PDF

Ecological risks of sulfonamides and quinolones degradation intermediates: Toxicity, microbial community, and antibiotic resistance genes

Published:9 December 2024 DOI: 10.1016/j.biortech.2024.131967 PMID: 39662843
Shuo Li,?Ran Wang,?Yunfei Zhang,?Heshan Zheng,?Xu Dong,?Yoong Kit Leong,?Jo-Shu Chang

Abstract

The ecological risks posed by incompletely degraded antibiotic intermediates in aquatic environments warrant significant attention. This study investigated the degradation mechanisms of sulfonamides (sulfadiazine, sulfamethoxazole) and quinolones (ciprofloxacin, norfloxacin) during thermally activated persulfate (TAP) treatment. The main degradation mechanisms for sulfonamides involved S-N bond cleavage and -NH2 oxidation mediated by sulfate and hydroxyl radicals, whereas quinolone degradation occurred primarily through piperazine ring cleavage facilitated by a single linear oxygen. Toxic degradation intermediates were found to be enriched with bacteria in real water samples, including Aeromonas (SDZ-50, 9.61%), Acinetobacter (SMZ-50, 21.91%), unclassified Archaea (CIP-50, 19.32%), and Herbaspirillum (NOR-50, 17.36%). Meanwhile, the abundance of sulfonamide-associated antibiotic resistance genes (ARGs) (sul1 and sul2) and quinolone-associated ARGs (mfpA, emrA, and lfrA) significantly increased, with SMZ-50 and NOR-50 reaching 659.34 and 2009.98 RPKM, respectively. Correlation analysis revealed differences in host diversity and composition driven by the same classes of antibiotics and their intermediates.

Substances (4)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Formic acid 64-18-6 CH2O2 1231 suppliers $7.62-$5923.38
Acetonitrile 75-05-8 C2H3N 1117 suppliers $10.00-$61180.00
Methanol 67-56-1 CH4O 896 suppliers $9.00-$7620.00
Ciprofloxacin 85721-33-1 C17H18FN3O3 734 suppliers $5.00-$1872.00

Similar articles

IF:12.2

High Temperatures Promote Antibiotic Resistance Genes Conjugative Transfer under Residual Chlorine: Mechanisms and Risks

Journal of Hazardous Materials Wenya Zhao, Binghuang Zhang,etc Published: 26 November 2024
IF:4.3

Benzalkonium Chlorides: Uses, Regulatory Status, and Microbial Resistance.

ACS Applied Electronic Materials Beatriz Merchel Piovesan Pereira, Ilias Tagkopoulos,etc Published: 17 June 2019
台北市| 卢湾区| 安丘市| 眉山市| 黄大仙区| 耿马| 天镇县| 英德市| 衡山县| 盘锦市| 明溪县| 呼玛县| 丰顺县| 南岸区| 阿克| 黄梅县| 大同县| 南开区| 健康| 汕头市| 宿迁市| 成武县| 吉首市| 东乡族自治县| 深泽县| 曲麻莱县| 稷山县| 大足县| 团风县| 贡觉县| 龙山县| 石城县| 兰州市| 桐城市| 伽师县| 沅江市| 慈溪市| 天门市| 修水县| 临颍县| 高密市|