环境科学与技术Pub Date : 2025-09-20DOI: 10.1021/acs.est.5c08910
Xianglin Liu, , , Yanqing Deng, , , Sizhi Chen, , , Jin Wang, , , Yan Zhang, , , Ming Li, , , Wenjun Zhong, , , Lijuan Zhang, , and , Xiaowei Zhang*,
{"title":"Identifying Key Taxa for Algal Blooms in a Large Aquatic Ecosystem through Machine Learning","authors":"Xianglin Liu, , , Yanqing Deng, , , Sizhi Chen, , , Jin Wang, , , Yan Zhang, , , Ming Li, , , Wenjun Zhong, , , Lijuan Zhang, , and , Xiaowei Zhang*, ","doi":"10.1021/acs.est.5c08910","DOIUrl":"10.1021/acs.est.5c08910","url":null,"abstract":"<p >Identifying key species responsible for excessive growth of algae communities, as reflected by the floating algae index (FAI), is crucial for developing targeted management strategies to control algal blooms (ABs). However, current approaches for algal biomonitoring in large aquatic ecosystems are limited by either low taxonomic resolution or insufficient spatial coverage. To address these limitations, this study developed a supervised machine learning (ML) approach that integrates environmental DNA metabarcoding, remote sensing, and water quality parameters to identify the key algal bloom species and map their spatial distribution. Results demonstrated that the gradient boosting tree model achieved high predictive accuracy, with a mean MAPE of 11.20% across different algal taxa. Using this model, the spatial distribution maps were generated for 34 algal taxa. Prediction accuracy was further validated by comparing model outputs with morphological survey data, revealing a significant positive correlation (Spearman’s correlation coefficient 0.366–0.709, <i>p</i> < 0.05) for 75% of the species. By integrating spatial mapping of algal distributions and FAI with principal component regression, the contributions of various algae taxa to the overall community structure were quantified across different regions. <i>Nostocales</i> and <i>Stephanodiscales</i> were identified as the key taxa driving FAI variations throughout Poyang Lake, with the toxic alga <i>Nostocales</i> exerting a greater influence in the northern region compared to other species. This study presents a novel framework for large-scale species-level simulation of algal dynamics, representing a significant advance toward more precise and comprehensive monitoring and management of algal blooms.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20499–20511"},"PeriodicalIF":11.3,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
环境科学与技术Pub Date : 2025-09-20DOI: 10.1021/acs.est.5c03755
Laura Minet*, , , Forood Azargoshasbi, , , Meredith Franklin, , , Gunnar W Schade, , , Margaret J. McGregor, , , Kate McInnes, , and , Tim K. Takaro,
{"title":"Analysis of Flaring Activity at Liquefied Natural Gas (LNG) Export Facilities Worldwide","authors":"Laura Minet*, , , Forood Azargoshasbi, , , Meredith Franklin, , , Gunnar W Schade, , , Margaret J. McGregor, , , Kate McInnes, , and , Tim K. Takaro, ","doi":"10.1021/acs.est.5c03755","DOIUrl":"10.1021/acs.est.5c03755","url":null,"abstract":"<p >Liquefied natural gas (LNG) export facilities are booming worldwide to supply gas for the growing energy demand. Flaring, the controlled burning of natural gas, occurs at these facilities during operations ranging from start-up to ongoing maintenance and under emergency situations. Although flaring can be a significant air pollutant and greenhouse gas emission source, little information exists on the frequency, duration, and volume of gas flared by LNG export facilities. This study leveraged ten years of data from the Visible Infrared Imaging Radiometer Suite (VIIRS) Night Fire (VNF) product associated with 48 existing LNG export facilities globally to develop probabilities of flaring at different life-cycle stages. We found a significantly higher volume of gas flared in the first two years of a facility’s operation (i.e., on average 1.9 (1.0–3.2) billion cubic meters (bcm) per capacity vs 0.62 (0.43–0.92) bcm during subsequent years). During regular operations, the annual volume of gas flared was correlated with the facility’s production capacity, and flaring varied greatly among facilities (148 (137–159) flaring days/year on average and 0.73 (0.64–0.85) bcm/capacity). Unfortunately, most environmental assessments overlook the start-up phase and fail to consider worst-case scenarios. As flaring is a source of air pollution, its potential health impacts on local populations may be underestimated in these assessments.</p><p >Minimal research exists on flaring at Liquefied Natural Gas (LNG) export facilities. This study develops probabilities of flaring events and volumes of gas flared per life-cycle stage.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20357–20366"},"PeriodicalIF":11.3,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.est.5c03755","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
环境科学与技术Pub Date : 2025-09-19DOI: 10.1021/acs.est.5c09275
Darryl M. Angel, , , Irvan Luhung, , , Keyla S. G. de Sá, , and , Jordan Peccia*,
{"title":"The Susceptibility of Airborne SARS-CoV-2 to Far-UVC Irradiation","authors":"Darryl M. Angel, , , Irvan Luhung, , , Keyla S. G. de Sá, , and , Jordan Peccia*, ","doi":"10.1021/acs.est.5c09275","DOIUrl":"10.1021/acs.est.5c09275","url":null,"abstract":"<p >Far-ultraviolet-C (far-UVC) irradiation has emerged as a breakthrough disinfection technology for the treatment of indoor air. Far-UVC wavelengths (222 nm) from filtered krypton-chloride excimer lamps are effective at inactivating airborne viruses and are safe for human exposure, thus enabling the continuous treatment of bulk air in occupied settings. This study quantifies the susceptibility of airborne SARS-CoV-2, aerosolized in human saliva, to far-UVC radiation. We measured fluence rate-based <i>Z</i>-value susceptibility constants (±standard error) of 4.4 ± 0.6 and 6.8 ± 0.7 cm<sup>2</sup> mJ<sup>–1</sup> for airborne SARS-CoV-2 under 40% and 65% relative humidity (RH) levels, respectively. At modeled far-UVC irradiation levels corresponding to 25% of the maximum safe human exposure limit, the resulting far-UVC equivalent air changes per hour (eACH) exceeded 62 h<sup>–1</sup> at 65% RH and were significantly greater than the corresponding airborne SARS-CoV-2 natural decay rate (±standard error) of 5.4 ± 1.1 h<sup>–1</sup>, measured in the absence of far-UVC. These results define first-order loss rates for airborne SARS-CoV-2 under far-UVC exposure and support quantitative risk assessments and rational disinfection system implementation.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20526–20535"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Harnessing Spatiotemporal Interaction of Redox Reactions Boosts Singlet Oxygen Generation in Electrocatalytic Dual-Membrane Systems","authors":"Mengyao Gu, , , Yifan Gao, , , Haojie Ding, , , Zhonghua Fan, , , Yujiao Gao, , , Weijia Tao, , , Shuai Liang*, , and , Xia Huang, ","doi":"10.1021/acs.est.5c08644","DOIUrl":"10.1021/acs.est.5c08644","url":null,"abstract":"<p >Electrocatalytic membrane filtration (EMF) technology presents a transformative approach to efficient emerging contaminant removal by synergistically integrating electrochemical reactions with membrane separation. However, current EMF systems exhibit inadequate control and poor understanding of selective reactive oxygen species (ROS) generation, particularly singlet oxygen (<sup>1</sup>O<sub>2</sub>), which constrains target-specific degradation capability. Here, we engineered a graphite-felt-based electrocatalytic dual-membrane system to systematically reveal how anode–cathode reactions under spatiotemporal coupling regulate <sup>1</sup>O<sub>2</sub> generation by modulating pH and anode potential. In the optimal configuration (A–C_1), H<sup>+</sup> and O<sub>2</sub> were produced via oxygen evolution reaction at the upstream anode transport to the downstream cathode interface, creating an acidic environment and continuous oxygen supply conducive to <sup>1</sup>O<sub>2</sub> formation. Compared to the reverse configuration (C–A_1), the A–C_1 configuration enhances the generation of key intermediates (O<sub>2</sub>·<sup>–</sup> and H<sub>2</sub>O<sub>2</sub>), significantly boosting the <sup>1</sup>O<sub>2</sub> generation rate (371.9 μmol L<sup>–1</sup>min<sup>–1</sup>) and achieving improved energy efficiency (17.88 m<sup>3</sup> order kWh<sup>–1</sup>). This study establishes spatiotemporal-interfacial regulation principles, providing a theoretical foundation for developing highly selective EMF systems.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20860–20870"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Novel Release Mechanism of Microplastics and Nanoplastics by Environmentally Relevant Sand Abrasion","authors":"Sarah Ziemann, , , Claire Hartwig Alberg, , , Himani Yadav, , , Ji Qin, , , Syeed Md Iskander, , , Ehsanur Rahman, , , Ezra Kone, , , Jiaqi Li, , , Jiarong Hong, , and , Boya Xiong*, ","doi":"10.1021/acs.est.5c08318","DOIUrl":"10.1021/acs.est.5c08318","url":null,"abstract":"<p >Mechanical degradation of plastics is a major source of micro- and nanoplastics (MPs/NPs) released into natural environments. However, our understanding of this process remains limited, and methods to quantify the mechanical degradation intensity are lacking. We designed a quantitative device to study MP/NP release arising strictly from surface abrasion of low-density polyethylene (LDPE) films by freely sliding/rolling dry sand over 7 months. We characterized the dynamic changes in released products, polymer surface, and sand surface, and correlated the release rates with input power from sliding friction. Environmentally relevant sand surface abrasion alone released only NPs (<400 nm, suspended) and water-extracted dissolved organic carbon (2–44 μg PE/cm<sup>2</sup>). Beyond suspended debris, we discovered that MPs/NPs’ (sub- to low-micron) can transfer onto sand grains- a novel and major release mechanism that could serve as a new source of MPs/NPs. Simultaneously, a dynamic layer of sand minerals was deposited on LDPE. Such mutual transfer is hypothesized to be stochastic and to interfere with the subsequent MP/NP release. Our findings highlight that MP/NP release and fate from environmentally relevant sand abrasion are more complex than our previous understanding. Correlating the input power with harmonized degradation rates indicated that solid abrasion releases debris more efficiently than fluid shear.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20684–20694"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Long-Term Coexposure to Multiple Air Pollutants and Stroke Incidence: A Large Prospective Cohort Study Based on a Shape-Constrained Nonlinear Weighted-Sum Model","authors":"Wei Wang, , , Hongjing Shi, , , Jinlei Qi, , , Canqing Yu, , , Dianjianyi Sun, , , Pei Pei, , , Ling Yang, , , Yiping Chen, , , Huaidong Du, , , Xiaoming Yang, , , Tingting Ou, , , Junshi Chen, , , Zhengming Chen, , , Liming Li, , , Maigeng Zhou*, , , Jun Lv*, , and , Yuting Han*, ","doi":"10.1021/acs.est.5c07241","DOIUrl":"10.1021/acs.est.5c07241","url":null,"abstract":"<p >No prior study has examined the flexible association between stroke incidence and long-term coexposure to multiple air pollutants within an interpretable framework or assessed coexposure attributable burden and intervention benefits. In this study, based on a large prospective cohort of 469,174 Chinese adults (2013–2018) and the annual exposures to PM<sub>2.5</sub>, SO<sub>2</sub>, NO<sub>2</sub>, CO, and O<sub>3</sub>, we developed a shape-constrained nonlinear weighted-sum model within a time-varying survival framework to characterize multipollutant–stroke associations, visualized via nonlinear nomograms. We calculated attributable cases, population attributable fraction (PAF), and benefits of 10% pollutant reductions across China in 2013–2022. Our model identified PM<sub>2.5</sub>, SO<sub>2</sub>, NO<sub>2</sub>, and CO as risk factors for ischemic stroke (decreasing importance), showing an S-shaped coexposure-response association. No adverse effect was observed for hemorrhagic stroke. Ischemic stroke PAF declined from 60.8% (50.0–69.3%) in 2013 to 36.7% (24.5–46.9%) in 2022, with stable annual attributable cases (∼1080.6 thousand). Intervention benefits varied by regions and years, e.g., traditional high-pollution areas showed significant population benefits in 2013 but limited benefits in 2019, while South China exhibited the opposite trend. Our results suggest that reducing air pollution remains the cornerstone of stroke prevention, and region-specific precise strategies─guided by our nomogram─are now needed.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20251–20262"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
环境科学与技术Pub Date : 2025-09-19DOI: 10.1021/acs.est.5c09247
Xuejian Wang, , , Andrea Ingold, , and , Elisabeth M.-L. Janssen*,
{"title":"Biotransformation Dynamics and Products of Cyanobacterial Secondary Metabolites in Surface Waters","authors":"Xuejian Wang, , , Andrea Ingold, , and , Elisabeth M.-L. Janssen*, ","doi":"10.1021/acs.est.5c09247","DOIUrl":"10.1021/acs.est.5c09247","url":null,"abstract":"<p >Cyanobacteria produce toxic and bioactive secondary metabolites, posing risks to ecosystems and human health, yet their transformation pathways in surface waters remain unclear. We assessed biotransformation for 40 cyanopeptides including microcystins, anabaenopeptins and cyanopeptolins in surface waters and <i>in situ</i> enriched biofilm suspensions. In surface waters, most cyanopeptides did not degrade significantly over the course of 7 days. A wide range of biodegradability across cyanopeptides was apparent in biofilm suspensions from three rivers. Increasing the biofilm density shortened the lag time and increased initial removal of cyanopeptides. Increasing the initial cyanopeptide concentration lengthened the lag time and decreased their initial removal, supporting inhibitory effects of cyanopeptides toward enzymes involved in their own transformation. Transformation kinetics and product analysis demonstrated a structure–reactivity relationship across and within cyanopeptide classes. Anabaenopeptins were hydrolyzed at the C-terminus when arginine, tyrosine and (iso)leucine were present, but not when phenylalanine or tryptophan was present. Microcystins showed tetrapeptide formation when adda linked to arginine but not when it linked to alanine, leucine, or tyrosine. Oxidation of tyrosine and deamination of arginine residues showed an interdependence across cyanopeptide classes. These novel insights into biotransformation products and pathways of a wide range of cyanopeptides facilitate assessment of exposure scenarios in surface waters and inform about kinetics and product formation in biological water treatment.</p><p >This work provides biotransformation kinetics of cyanopeptides beyond microcystins, the influence on kinetics of initial cyanopeptide abundance and bacterial density, and new transformation products and possible pathways.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20726–20737"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.est.5c09247","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Linked Response of Aerosol Water Content and Acidity to Future Anthropogenic Emission Control over the North China Plain","authors":"Haoqi Wang, , , Jiacheng Li, , , Xianhao Guo, , , Yinchang Feng, , and , Shaojie Song*, ","doi":"10.1021/acs.est.5c08438","DOIUrl":"10.1021/acs.est.5c08438","url":null,"abstract":"<p >China’s air quality improvement and carbon neutrality goals will substantially reshape atmospheric gas and aerosol compositions through reduced emissions of acidic and alkaline precursors. However, the impacts of these goals on aerosol physicochemical properties, specifically the coupled responses of aerosol water content (AWC) and acidity (pH), remain poorly constrained. The North China Plain (NCP), with globally high AWC and pH and pivotal for implementing anthropogenic emission controls, was selected as the study area. Here, we simulated the long-term winter trends in AWC and aerosol pH across representative emission scenarios by utilizing the goddard earth observing system (GEOS)-Chem chemical transport model coupled with the ISORROPIA-II thermodynamic model. Results show that the aerosol mass growth factor remains relatively stable, with AWC decline mainly driven by reduced inorganic aerosol mass concentrations. Aerosol pH exhibits nonlinear spatiotemporal patterns across scenarios, reflecting a dynamic balance between two opposing mechanisms: (1) a trend toward increased acidity driven by the linked decrease in AWC and (2) a countervailing trend toward alkalinity due to rising alkali-to-acid ratios. Aqueous phase nonideality emerges as a critical but under-valued driver of long-term pH trajectories. This study establishes a mechanistic framework for disentangling the drivers of aerosol hygroscopicity and acidity, providing insights into atmospheric multiphase chemistry and emission mitigation strategies.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20557–20567"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
环境科学与技术Pub Date : 2025-09-19DOI: 10.1021/acs.est.5c06142
Weiyi Tang*, , , Samantha G. Fortin, , , Naomi Intrator, , , Jenna A. Lee, , , Moriah A. Kunes, , , Amal Jayakumar, , and , Bess B. Ward,
{"title":"Contrasting Oxygen Sensitivities of Ammonia Oxidation and Nitrous Oxide Production in Estuarine Waters","authors":"Weiyi Tang*, , , Samantha G. Fortin, , , Naomi Intrator, , , Jenna A. Lee, , , Moriah A. Kunes, , , Amal Jayakumar, , and , Bess B. Ward, ","doi":"10.1021/acs.est.5c06142","DOIUrl":"10.1021/acs.est.5c06142","url":null,"abstract":"<p >The ocean is losing its oxygen, with hypoxia frequently observed in estuarine and coastal waters. Oxygen concentration changes affect both marine animals and microbe-mediated biogeochemical cycles, such as nitrogen cycling. Understanding the oxygen sensitivity of nitrogen cycling processes is critical to evaluating changes in nitrogen speciation and availability, which regulate marine primary production. Ammonia oxidation transforms ammonia into nitrite, supplying a substrate for nitrogen removal processes, including denitrification and anammox. Ammonia oxidation is also the major source of nitrous oxide (N<sub>2</sub>O), a potent greenhouse gas and ozone-depleting substance, in oxygenated parts of the ocean, but observations of its oxygen sensitivity are limited, particularly for estuarine and coastal environments. Here, we showed a strong dependence of ammonia oxidation on oxygen, with an average half-saturation constant of 6.88 ± 4.22 μM O<sub>2</sub> in the seasonally hypoxic waters of Chesapeake Bay, one of the largest estuaries in the world. N<sub>2</sub>O production from ammonia oxidation peaked at an average oxygen concentration of 2.68 ± 2.33 μM O<sub>2</sub>. Compilation and meta-analysis of previous studies identified spatial differences and constrained the oxygen sensitivity of ammonia oxidation and N<sub>2</sub>O production. The overlap in the oxygen affinities of ammonia oxidation and denitrification suggests that the supply of nitrite by ammonia oxidation facilitates nitrogen loss, and both processes contribute to N<sub>2</sub>O hotspots under low oxygen conditions.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20442–20451"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
环境科学与技术Pub Date : 2025-09-19DOI: 10.1021/acs.est.5c06285
Yuchao Wang, , , Xuhui Luo, , , Ming Yue, , , Bin Song*, , , Kristiina Karhu*, , and , Bahar S. Razavi,
{"title":"Rhizosphere Keystone Microbiomes Promote Invasive Plant Growth under PLA and PVC Microplastic Stress: A Comparative Study with Native Species","authors":"Yuchao Wang, , , Xuhui Luo, , , Ming Yue, , , Bin Song*, , , Kristiina Karhu*, , and , Bahar S. Razavi, ","doi":"10.1021/acs.est.5c06285","DOIUrl":"10.1021/acs.est.5c06285","url":null,"abstract":"<p >Global ecosystems are increasingly threatened by the synergistic pressures of invasive plant species and soil microplastic contamination, yet the mechanisms by which microplastics enhance invasive species establishment remain unclear. In this study, we employ a mesocosm experiment using two types of microplastics, biodegradable polylactide (PLA), and nonbiodegradable polyvinyl chloride (PVC), to compare the responses of invasive and native plant species. We measured plant biomass, nutrient fluxes, soil enzyme activities, and microbial communities in the rhizosphere using soil zymography and 16S rRNA gene sequencing. Invasive plants experienced less growth inhibition than native plants under microplastic exposure, accompanied by the selective enrichment of bacterial genera in the rhizosphere such as <i>Arthrobacter</i>, <i>Sphingomonas</i>, <i>Microvirga</i>, and <i>Azospirillum</i>. These microbes were associated with more interconnected and stable microbial networks, which may have enhanced invasive plant tolerance to microplastic-induced stress. Our results suggest that microplastics can reshape rhizosphere microbial communities in ways that have profound implications for ecological restoration and invasive species management. Future research should experimentally validate the functional roles of these enriched microbial taxa in promoting plant resilience under environmental stress.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"59 38","pages":"20201–20215"},"PeriodicalIF":11.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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