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
阿拉善右旗| 祁东县| 中宁县| 凤山县| 黎城县| 泰和县| 板桥市| 马山县| 特克斯县| 武川县| 高州市| 梓潼县| 彭阳县| 宜春市| 石门县| 顺义区| 宁国市| 方正县| 社旗县| 平果县| 清镇市| 涪陵区| 石家庄市| 奈曼旗| 静海县| 乌鲁木齐县| 沾益县| 博客| 安康市| 丰都县| 彰化市| 光泽县| 楚雄市| 泽州县| 松江区| 永善县| 将乐县| 定日县| 星子县| 龙岩市| 叶城县|