{"title":"Effects and mechanisms of aquatic landscape plants on the removal of veterinary antibiotics from hydroponic solutions.","authors":"Xiao-Ming Lu, Yi-Xi Liu","doi":"10.1080/15226514.2024.2402877","DOIUrl":null,"url":null,"abstract":"<p><p>Four aquatic landscape plants and three veterinary antibiotics were selected to construct a hydroponic test system to analyze the tolerance, removal effect and mechanism of antibiotics. The results indicated that antibiotic concentrations from 0 to 100 μg·L<sup>-1</sup> promoted plant heights and leaf chlorophyll contents, while antibiotics at concentrations > 100 μg·L<sup>-1</sup> had inhibitory effects. The ability of different plants to remove antibiotics was <i>Acorus calamus</i> L. > <i>Ceratophyllum demersum</i> L. > <i>Thalia dealbata</i> Fraser > <i>Nuphar pumila</i> (Timm) DC. The plants with the best removal of norfloxacin, sulfadimethoxine and chlortetracycline were <i>Ceratophyllum demersum</i> L., <i>Acorus calamus</i> L. and <i>Acorus calamus</i> L. after 12 d of hydroponic cultivation using 100 μg·L<sup>-1</sup> antibiotics, with removal rates of 66.6%, 63.0% and 63.2%, respectively. The accumulation of antibiotics in different plant tissues was root > stem > leaf and the accumulation increased with incubation time. The diversity of plant root biofilm microorganisms decreased with increasing treatment concentrations of antibiotics, while the abundance of dominant genera (<i>Aeromonas</i>, <i>Bacillus</i>, <i>Lysinibacillus</i>, <i>Providencia</i>, and <i>Staphylococcus</i>) showed an increasing trend. The findings imply that the antibiotic uptake by plants and the dynamics of the rhizosphere microbial community combine to promote antibiotic removal.</p>","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-11"},"PeriodicalIF":3.4000,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Phytoremediation","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/15226514.2024.2402877","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Four aquatic landscape plants and three veterinary antibiotics were selected to construct a hydroponic test system to analyze the tolerance, removal effect and mechanism of antibiotics. The results indicated that antibiotic concentrations from 0 to 100 μg·L-1 promoted plant heights and leaf chlorophyll contents, while antibiotics at concentrations > 100 μg·L-1 had inhibitory effects. The ability of different plants to remove antibiotics was Acorus calamus L. > Ceratophyllum demersum L. > Thalia dealbata Fraser > Nuphar pumila (Timm) DC. The plants with the best removal of norfloxacin, sulfadimethoxine and chlortetracycline were Ceratophyllum demersum L., Acorus calamus L. and Acorus calamus L. after 12 d of hydroponic cultivation using 100 μg·L-1 antibiotics, with removal rates of 66.6%, 63.0% and 63.2%, respectively. The accumulation of antibiotics in different plant tissues was root > stem > leaf and the accumulation increased with incubation time. The diversity of plant root biofilm microorganisms decreased with increasing treatment concentrations of antibiotics, while the abundance of dominant genera (Aeromonas, Bacillus, Lysinibacillus, Providencia, and Staphylococcus) showed an increasing trend. The findings imply that the antibiotic uptake by plants and the dynamics of the rhizosphere microbial community combine to promote antibiotic removal.
期刊介绍:
The International Journal of Phytoremediation (IJP) is the first journal devoted to the publication of laboratory and field research describing the use of plant systems to solve environmental problems by enabling the remediation of soil, water, and air quality and by restoring ecosystem services in managed landscapes. Traditional phytoremediation has largely focused on soil and groundwater clean-up of hazardous contaminants. Phytotechnology expands this umbrella to include many of the natural resource management challenges we face in cities, on farms, and other landscapes more integrated with daily public activities. Wetlands that treat wastewater, rain gardens that treat stormwater, poplar tree plantings that contain pollutants, urban tree canopies that treat air pollution, and specialized plants that treat decommissioned mine sites are just a few examples of phytotechnologies.