International Biodeterioration & Biodegradation最新文献

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Environmentally-grown aerobic granular sludge performs more complete pharmaceutical biodegradation and wastewater treatment than lab-grown granules 环境培养的好氧颗粒污泥比实验室培养的颗粒污泥进行更完整的药物生物降解和废水处理
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-04-05 DOI: 10.1016/j.ibiod.2025.106081
Kylie B. Bodle , Catherine M. Kirkland
{"title":"Environmentally-grown aerobic granular sludge performs more complete pharmaceutical biodegradation and wastewater treatment than lab-grown granules","authors":"Kylie B. Bodle ,&nbsp;Catherine M. Kirkland","doi":"10.1016/j.ibiod.2025.106081","DOIUrl":"10.1016/j.ibiod.2025.106081","url":null,"abstract":"<div><div>This study evaluated pharmaceutical removal by environmentally-grown aerobic granular sludge (AGS). Most pharmaceutical treatment studies utilize lab-grown AGS, which is cultivated from activated sludge flocs on synthetic media and therefore is likely to possess different physical and microbiological properties than its real-world counterpart. For approximately 70 days, a 60 μg/L mixture of gemfibrozil, diclofenac, and erythromycin was fed to environmentally-grown AGS. Wastewater treatment, granule characteristics, and pharmaceutical fate were monitored. Environmentally-grown granules outperformed their lab-grown counterparts in multiple ways: environmental granules were physically unimpacted by pharmaceuticals, phosphate removal remained complete, and all nitrogen removal processes were unaffected except ammonia oxidation, which was temporarily inhibited by approximately 35%. Most importantly, gemfibrozil was completely biodegraded, a result yet to be observed in any AGS study. Diclofenac and erythromycin removal were minimal and generally below 10%. The families J111, <em>Xanthomonadaceae</em>, OLB5, and <em>Weeksellaceae</em> were uniquely identified as pharmaceutical degraders. Results suggest that environmentally-grown AGS contains rare, but essential, microbial community members missing from lab-grown granules, and these communities enhance environmental granules’ resilience during pharmaceutical exposure. Altogether, this study demonstrates that lab-grown AGS may not accurately model the functional capacity of its real-world counterparts.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"202 ","pages":"Article 106081"},"PeriodicalIF":4.1,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
A new isolated bacterium coupling reduction of ferric ion with oxidation of hydrogen and sulfur 一个新分离的细菌偶联还原铁离子与氢和硫的氧化
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-04-04 DOI: 10.1016/j.ibiod.2025.106082
Ji-Dong Gua
{"title":"A new isolated bacterium coupling reduction of ferric ion with oxidation of hydrogen and sulfur","authors":"Ji-Dong Gua","doi":"10.1016/j.ibiod.2025.106082","DOIUrl":"10.1016/j.ibiod.2025.106082","url":null,"abstract":"","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106082"},"PeriodicalIF":4.1,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Unraveling microbial assembly and co-occurrence relationship at seasonal and vertical scales in an aged organic-contaminated site 古有机污染场地季节性和垂直尺度上微生物聚集和共生关系的揭示
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-04-02 DOI: 10.1016/j.ibiod.2025.106080
Zhirui Qin , Zhenhua Zhao , Liling Xia , Jiayuan Liu , Xuan Li , Aiwei Zhang , Yue Wang , Jingwei Wang
{"title":"Unraveling microbial assembly and co-occurrence relationship at seasonal and vertical scales in an aged organic-contaminated site","authors":"Zhirui Qin ,&nbsp;Zhenhua Zhao ,&nbsp;Liling Xia ,&nbsp;Jiayuan Liu ,&nbsp;Xuan Li ,&nbsp;Aiwei Zhang ,&nbsp;Yue Wang ,&nbsp;Jingwei Wang","doi":"10.1016/j.ibiod.2025.106080","DOIUrl":"10.1016/j.ibiod.2025.106080","url":null,"abstract":"<div><div>Organic-contaminated sites represent a global challenge in soil contamination, yet the spatiotemporal responses of microbial communities remain scarcely investigated. This study explored the landscape characteristics, environmental adaptations, assembly mechanisms, and species interactions of bacterial communities at seasonal and vertical scales in an aged organic-contaminated site. Results showed that seasonal variations (20.62 %) exerted a stronger influence on bacterial community composition and structure compared to soil depth (10.10 %), while organic contaminants and physicochemical factors contributed 8.77 % to the observed variations across both seasonal and vertical scales. Seasonally, summer bacterial communities exhibited lower diversity but better environmental adaptation, along with greater complexity and stability compared to spring and winter. Vertically, surface soil bacterial communities displayed higher diversity and stronger environmental adaptation but weaker complexity and stability than subsurface bacterial communities. Stochastic processes were less influential in shaping microbial community assembly during summer than in spring and winter, while their importance gradually increased with soil depth. Moreover, identified keystone species, such as <em>Pseudomonas</em>, <em>Brevundimonas</em>, and <em>Acidovorax</em>, were closely associated with the degradation of organic contaminants. These findings provide valuable insights into the comprehensive microbial responses to ongoing environmental disturbances in organic-contaminated sites, enhancing our understanding of soil pollution microecology.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"202 ","pages":"Article 106080"},"PeriodicalIF":4.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Novelty is very different from rarity fundamentally 从根本上说,新奇和稀有是不同的
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-04-01 DOI: 10.1016/j.ibiod.2025.106077
Ji-Dong Gu
{"title":"Novelty is very different from rarity fundamentally","authors":"Ji-Dong Gu","doi":"10.1016/j.ibiod.2025.106077","DOIUrl":"10.1016/j.ibiod.2025.106077","url":null,"abstract":"<div><div>Novelty in science does not come easily, but a trendy use of this word does not support the meaning in the research and manuscript. Many of the researches on novelty claimed is actually rarity because of the narrow focus, view and contents. Data of genomics-based technologies are used to generate further second-hand data presented as results, and these inferred biochemical potentials cannot be treated as the function of the community members without any verification or validation through experimentation. Science is facing an increasing challenge and the participants in science must uphold the standard for quality, not productivity without a good standard.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106077"},"PeriodicalIF":4.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Temperature-driven alterations in bacterial community responses to decabromodiphenyl ether (BDE-209) contamination in soil microcosms 土壤微生物中细菌群落对十溴联苯醚(BDE-209)污染响应的温度驱动变化
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-03-31 DOI: 10.1016/j.ibiod.2025.106078
Shasha Fang , Yue Geng , Lu Wang , Yucheng Wu , Shimin Zhang
{"title":"Temperature-driven alterations in bacterial community responses to decabromodiphenyl ether (BDE-209) contamination in soil microcosms","authors":"Shasha Fang ,&nbsp;Yue Geng ,&nbsp;Lu Wang ,&nbsp;Yucheng Wu ,&nbsp;Shimin Zhang","doi":"10.1016/j.ibiod.2025.106078","DOIUrl":"10.1016/j.ibiod.2025.106078","url":null,"abstract":"<div><div>Polybrominated diphenyl ethers (PBDEs) are organic pollutants that pose a threat to natural environments, and their sensitivity can be influenced by various factors, including temperature in real-world environment. Achieving an understanding of how microorganisms respond to PBDEs at various temperatures is crucial for assessing ecological risks or identifying potential degraders. For this study, microcosms were established with or without the addition of 10 mg kg<sup>−1</sup> decabromodiphenyl ether (BDE-209) and then incubated at four temperatures—4 °C, 15 °C, 25 °C, and 37 °C—for a period of 180 days. The results indicated that BDE-209 debromination rates decreased in the following sequence: 15 °C, 25 °C, 37 °C, 4 °C. Temperature made a vital role in the diversity, composition, and potential degrading bacteria of BDE-209 debromination. When incubated at 4 °C, 15 °C and 25 °C, BDE-209 substantially reduced the network complexity, highlighting the PBDEs-associated risks in low and moderate temperature microcosms. In contrast, the incorporation of BDE-209 was beneficial for community characterization and networking at 37 °C. The Random forest model pinpointed specific taxa that could potentially be associated with PBDEs debromination at various incubation temperatures. These results revealed contrasting effects of PBDEs on bacterial communities at various temperatures, thus attention should be paid to the impact of PBDEs on soil ecology in real environmental conditions.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106078"},"PeriodicalIF":4.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Synergistic surfactant cleaning-bioaugmentation strategy enables deep remediation of heavily petroleum-contaminated soils: Field validation and microbial mechanism 表面活性剂清洁-生物强化协同修复重度石油污染土壤:现场验证与微生物机制
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-03-30 DOI: 10.1016/j.ibiod.2025.106079
Zhineng Wu , Linhao Kang , Quanli Man , Yaduo Yang , Jiao Wang , Hongjiang Ge , Xiaodong Ma
{"title":"Synergistic surfactant cleaning-bioaugmentation strategy enables deep remediation of heavily petroleum-contaminated soils: Field validation and microbial mechanism","authors":"Zhineng Wu ,&nbsp;Linhao Kang ,&nbsp;Quanli Man ,&nbsp;Yaduo Yang ,&nbsp;Jiao Wang ,&nbsp;Hongjiang Ge ,&nbsp;Xiaodong Ma","doi":"10.1016/j.ibiod.2025.106079","DOIUrl":"10.1016/j.ibiod.2025.106079","url":null,"abstract":"<div><div>Petroleum pollutants pose significant environmental and human health risks, highlighting the urgent need to develop effective methods for remediation of heavily petroleum-contaminated soil. Current surfactant cleaning-bioaugmentation coupled technologies encounter challenges of inadequate profound remediation efficacy. This study conducted a field study of a composite surfactant cleaning method coupled with bioaugmentation in an oilfield. Initially, soil containing 153200 ± 1700 mg/kg total petroleum hydrocarbons (TPH) was washed with the composite surfactant SDBS-TX100, and the TPH was reduced to 36800 ± 1800 mg/kg. Subsequently, 92 days of bioremediation by bioaugmentation using a novel bacterial consortium decreased the TPH to 7600 ± 400 mg/kg, with a degradation rate of 79.35 %. The degradation rates of saturated hydrocarbons, aromatic hydrocarbons, resins, and asphaltenes in the four components of crude oil in the soil were 73.08 %, 73.24 %, 74.19 %, and 77.78 %, respectively. The C10-C40 in soil decreased from 4080 mg/kg to 330 mg/kg, which met the screening value (826 mg/kg) for Class I land use according to the Chinese Soil Environmental Quality-Construction Land Soil Pollution Risk Control Standards (Trial) (GB 36600-2018). This significant reduction is primarily attributed to the increase of soil dehydrogenase activity and the enrichment of alkane-degrading and aromatic-degrading bacteria. The introduction of bacterial consortium effectively regulated the soil microbial community, resulting in the enrichment of functional bacteria capable of degrading petroleum, thus enhancing the degradation process. This study provides a new strategy for the synergistic remediation of heavily petroleum-contaminated soil through composite surfactant cleaning and bioremediation.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106079"},"PeriodicalIF":4.1,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Effects of galU on bacterial physiology and responses to surfactants and antibiotics in Pseudomonas nitroreducens TX1 galU对硝基还原假单胞菌TX1细菌生理及对表面活性剂和抗生素反应的影响
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-03-27 DOI: 10.1016/j.ibiod.2025.106072
Po-Chun Tsai , Thang Ngoc Tran , Ting-Huan Shih , Kyoung Lee , Chen-Yen Wu , Shir-Ly Huang
{"title":"Effects of galU on bacterial physiology and responses to surfactants and antibiotics in Pseudomonas nitroreducens TX1","authors":"Po-Chun Tsai ,&nbsp;Thang Ngoc Tran ,&nbsp;Ting-Huan Shih ,&nbsp;Kyoung Lee ,&nbsp;Chen-Yen Wu ,&nbsp;Shir-Ly Huang","doi":"10.1016/j.ibiod.2025.106072","DOIUrl":"10.1016/j.ibiod.2025.106072","url":null,"abstract":"<div><div><em>Pseudomonas nitroreducens</em> TX1, a Gram-negative bacterium isolated from surfactant-contaminated environments, can utilize octylphenol polyethoxylates (OPEOn) as sole carbon source to grow, making it a promising candidate for bioremediation. One of the transposon insertion mutants exhibited impaired growth on OPEOn was identified as the <em>galU</em> mutant. The <em>galU</em> gene encodes UDP-glucose pyrophosphorylase, which are essential for lipopolysaccharide (LPS) and exopolysaccharide (EPS) biosynthesis. This study investigates the effects of <em>galU</em> in bacterial physiology. The <em>galU</em> deletion mutant exhibited impaired growth on OPEOn, and exhibited higher viability in succinate medium. The mutation also affected cell surface properties, which includes the changes of morphology and cell surface hydrophobicity. Morphological analyses by scanning electron microscopy revealed shortened cells, and altered cell surface roughness of <em>galU</em> mutant. The analyses of cell surface hydrophobicity, revealing the mutant exhibited lower cell surface hydrophobicity during the log phase. The stress resistance of <em>galU</em> mutant were also conducted. Biofilm formation was found to be increased in <em>galU</em> mutant, and antibiotic susceptibility tests showed that this mutant had increased resistance to multiple antibiotics, highlighting the critical role of LPS in maintaining membrane permeability and susceptibility in <em>Pseudomonas</em> species. Complementation of the <em>galU</em> mutation restored the phenotypes in terms of growth, morphology, and cell surface properties. These findings enhanced our understanding of <em>galU</em> by using its in-frame deletion mutant. The effects on bacterial physiology shown the potential for improving biodegradation of nonionic surfactants controlling biofilms and applying on antibiotics development.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106072"},"PeriodicalIF":4.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Fermentation of highly toxic reed hydrolysate using Candida glycerinogenes to produce platform compound glycerol 用产甘油假丝酵母发酵剧毒芦苇水解液生产平台复合甘油
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-03-26 DOI: 10.1016/j.ibiod.2025.106069
Yiwen Cheng , Liya Zhang , Dongqi Jiang , Mengying Wang , Xueqing Du , Hong Zong , Xinyao Lu , Bin Zhuge
{"title":"Fermentation of highly toxic reed hydrolysate using Candida glycerinogenes to produce platform compound glycerol","authors":"Yiwen Cheng ,&nbsp;Liya Zhang ,&nbsp;Dongqi Jiang ,&nbsp;Mengying Wang ,&nbsp;Xueqing Du ,&nbsp;Hong Zong ,&nbsp;Xinyao Lu ,&nbsp;Bin Zhuge","doi":"10.1016/j.ibiod.2025.106069","DOIUrl":"10.1016/j.ibiod.2025.106069","url":null,"abstract":"<div><div>Reed, wild plants all over the world, remains underutilized as a fermentation feedstock due to the high inhibitory of its hydrolysate. Most studies on lignocellulose fermentation have focused on ethanol production; however, glycerol, as a platform compound, holds broader application prospects due to its versatility in producing various metabolites. This study aims to enhancing the resistance of <em>Candida glycerinogenes</em> through genetic modifications to improve its resistance to inhibitors. Our results demonstrate that the gene <em>CgLYRM6</em> demonstrated effective detoxification against a range of aldehyde inhibitors, including furfural, vanillin, benzaldehyde, 2,5-dimethylbenzaldehyde, and 3,4-dimethylbenzaldehyde.The final engineered strain Cg1 carrying <em>LYRM6</em>, <em>TAL1</em> and <em>UGA2</em> achieved a glycerol titer of 31 g/L in reed hydrolysate, a 24 % increase compared to the wild type. And glycerol titer reached 40 g/L in the 5 L bioreactor, showing an 60 %increase in production. The strain had shorter fermentation cycle and stronger detoxification ability compared to the control strain. This route enabled simultaneous fermentation and detoxification, providing intermediate metabolites for further conversion and offering a new strategy to utilize undetoxified, alkali-pretreated reed hydrolysate for the production of various metabolites.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106069"},"PeriodicalIF":4.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Degradation and conversion of organics in a continuous HNAD system treating incineration leachate 连续HNAD系统处理焚烧渗滤液中有机物的降解和转化
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-03-24 DOI: 10.1016/j.ibiod.2025.106073
Mengying Zhu , Facai An , Dezhi Sun , Xinying Liu
{"title":"Degradation and conversion of organics in a continuous HNAD system treating incineration leachate","authors":"Mengying Zhu ,&nbsp;Facai An ,&nbsp;Dezhi Sun ,&nbsp;Xinying Liu","doi":"10.1016/j.ibiod.2025.106073","DOIUrl":"10.1016/j.ibiod.2025.106073","url":null,"abstract":"<div><div>The anaerobically treated incineration leachate contains high-strength ammonium and refractory organics, which is advisable to be biologically treated via heterotrophic nitrification-aerobic denitrification (HNAD) process. However, it is still unknown how the organics in leachate wastewater are degraded and utilized during HNAD process. In this study, a continuous HNAD based moving bed biofilm reactor was operated with actual anaerobically treated incineration leachate as the influent. During stable operation, besides superior nitrogen removal efficiency (88.73 %), the organics were effectively removed with a high average COD removal efficiency (85.05 %). Organic fluorescent spectra showed humic substances were significantly removed, with the intensities of the humic peak and fulvic peak decreasing by 96.59 % and 91.93 %, respectively. Furthermore, most of the dissolved organic matter within varying ranges of molecular weight could be degraded during the HNAD process, during which the benzene-based substances were removed and the medium-long chain alkanes (C &gt; 12) were generated. Through carbon balance analysis, assimilation metabolism accounted for 44.75 % of the conversed organic carbon. According to the decrease in respiration inhibition rate from 52.21 % to 25.36 %, the toxicity of leachate wastewater was strongly reduced after treatment by HNAD process. <em>Halomonas</em> (43.72 %) was the dominant HNAD bacteria, and relative abundances of genes associated with refractory organics degradation were increased during the treatment of incineration leachate. These results provide new insights into carbon metabolism during HNAD process for treating wastewater with complex organics.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106073"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Distinct responses of aerobic and anaerobic soil microbial community structure and function to anthracene stress at environmental contamination levels 环境污染水平下好氧和厌氧土壤微生物群落结构和功能对蒽胁迫的不同响应
IF 4.1 2区 环境科学与生态学
International Biodeterioration & Biodegradation Pub Date : 2025-03-24 DOI: 10.1016/j.ibiod.2025.106074
Liman Wei , Meng Gao , Shanxing Wu, Chunguang Liu, Yu Wang, Hongwen Sun
{"title":"Distinct responses of aerobic and anaerobic soil microbial community structure and function to anthracene stress at environmental contamination levels","authors":"Liman Wei ,&nbsp;Meng Gao ,&nbsp;Shanxing Wu,&nbsp;Chunguang Liu,&nbsp;Yu Wang,&nbsp;Hongwen Sun","doi":"10.1016/j.ibiod.2025.106074","DOIUrl":"10.1016/j.ibiod.2025.106074","url":null,"abstract":"<div><div>Anthracene (ANT) is widespread in terrestrial ecosystems, yet its impact on soil microbial community structure and function under varying oxygen conditions remains inadequately characterized. This study evaluated the responses of bacteria to ANT stress at environmental concentration (1.0 mg kg<sup>−1</sup>) under aerobic and anaerobic soils. ANT contamination enriched potential polycyclic aromatic hydrocarbons (PAHs) degrading bacteria, such as Actinobacteriota, Prolixibacteraceae, and Nitrosomonadaceae, under both aerobic and anaerobic conditions. It also resulted in the proliferation of oligotrophic microorganisms under anaerobic condition. Additionally, ANT promoted the functions related to soil carbon, nitrogen and sulfur element cycling functions (Wilcoxon rank sum test, <em>P</em> &lt; 0.05) and altered microbial carbon source utilization preferences in aerobic environment. However, under anaerobic conditions, ANT inhibited soil microbial element cycling, resulting in adverse effects. Furthermore, label-free proteomics quantitative analysis was conducted for aerobic treatment groups, revealing that the ANT contamination in soil altered the growth, metabolism and reproduction of bacteria. Up-regulated proteins were mainly concentrated in the Kyoto Encyclopedia of Genes and Genomes pathways related to amino acid and energy metabolism, which generated energy to satisfy physiological demanding under ANT stress. These results indicate that ANT at environmental contamination levels exhibit varying microbial effects under different oxygen conditions. Therefore, it is crucial to consider both its concentration and soil redox conditions when assessing the risk of PAH compounds.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"201 ","pages":"Article 106074"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
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