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 promoted plant heights and leaf chlorophyll contents, while antibiotics at concentrations > 100 μg·L had inhibitory effects. The ability of different plants to remove antibiotics was L. > L. > Fraser > (Timm) DC. The plants with the best removal of norfloxacin, sulfadimethoxine and chlortetracycline were L., L. and L. after 12 d of hydroponic cultivation using 100 μg·L 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 (, , , , and ) 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.
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http://dx.doi.org/10.1080/15226514.2024.2402877 | DOI Listing |
Biodivers Data J
December 2024
University of Pécs, Faculty of Sciences, Department of Hydrobiology, Ifjúság útja 6, Pécs, Hungary University of Pécs, Faculty of Sciences, Department of Hydrobiology, Ifjúság útja 6 Pécs Hungary.
mSystems
December 2024
River Ecosystems Laboratory, Alpine and Polar Environmental Research Center, Ecole Polytechnique Fédérale de Lausanne (EPFL), Sion, Switzerland.
Unlabelled: Glacier-fed streams are permanently cold, ultra-oligotrophic, and physically unstable environments, yet microbial life thrives in benthic biofilm communities. Within biofilms, microorganisms rely on secondary metabolites for communication and competition. However, the diversity and genetic potential of secondary metabolites in glacier-fed stream biofilms remain poorly understood.
View Article and Find Full Text PDFConserv Biol
December 2024
California Division, The Nature Conservancy, California, USA.
Ecosystems globally have reached critical tipping points because of climate change, urbanization, unsustainable resource consumption, and pollution. In response, international agreements have set targets for conserving 30% of global ecosystems and restoring 30% of degraded lands and waters by 2030 (30×30). In 2021, the United States set a target to jointly conserve and restore 30% of US lands and waters by 2030, with a specific goal to restore coastal ecosystems, namely wetlands, seagrasses, coral and oyster reefs, and mangrove and kelp forests, to increase resilience to climate change.
View Article and Find Full Text PDFEnviron Pollut
December 2024
São Paulo State University (Unesp), Environmental Studies Center (CEA), Rio Claro, SP, Brazil; Postgraduate Program in Geosciences and Environment, Institute of Geosciences and Exact Sciences (IGCE), Rio Claro, SP, Brazil. Electronic address:
Seabirds are particularly susceptible to potentially toxic elements (PTEs) due to the tendency of biomagnification of some elements, thus serving as potential bioindicators for assessing environmental health. In this study, we analyzed As, Cd, Cu and Zn concentrations in liver samples from nine seabird species (51 specimens) collected along the Southwestern Atlantic Ocean. Results revealed substantial variations in PTE concentrations among species, with taxonomic orders influencing accumulation patterns.
View Article and Find Full Text PDFEcotoxicol Environ Saf
December 2024
International Center for Bamboo and Rattan, No. 8, Futong Eastern Avenue, Wangjing Area, Chaoyang District, Beijing 100102, China.
Plants play a key role in the ecological restoration of urban wetlands. Previous studies have shown that heavy-metal accumulation capacities and adaptation strategies of wetland plants may be related to their life forms. In this study, pot experiments were conducted to investigate the effects of nitrogen (N) on the adaptation strategies of two evergreen and deciduous aquatic iris life forms under cadmium (Cd) stress.
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