International Biodeterioration & Biodegradation最新文献_第4页

Electrocatalytic oxidation of bisphenol A using optimized Fe/Cu cathodic catalysts: Biotoxicity and microbial community analysis in bioelectro-Fenton systems 优化的Fe/Cu阴极催化剂电催化氧化双酚A：生物毒性和生物电fenton系统的微生物群落分析

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-17 DOI: 10.1016/j.ibiod.2025.106126

Shu-Hui Liu , Chang-Ting Hsieh , Chi-Wen Lin , Yen San Chan

{"title":"Electrocatalytic oxidation of bisphenol A using optimized Fe/Cu cathodic catalysts: Biotoxicity and microbial community analysis in bioelectro-Fenton systems","authors":"Shu-Hui Liu , Chang-Ting Hsieh , Chi-Wen Lin , Yen San Chan","doi":"10.1016/j.ibiod.2025.106126","DOIUrl":"10.1016/j.ibiod.2025.106126","url":null,"abstract":"<div><div>Bioelectro-Fenton (BEF) systems have attracted attention for sustainable pollutant treatment, but the application of Fe/Cu-based cathodic catalysts remains limited by instability, metal leaching, and potential toxic by-products. The treatment of bisphenol A (BPA), a persistent and toxic endocrine disruptor, further challenges wastewater remediation. This study uses the response surface method to optimize the preparation conditions of Fe/Cu cathode catalysts for enhancing the performance of BEF systems by increasing H<sub>2</sub>O<sub>2</sub> generation, removing BPA, and decreasing the internal resistance of the cathode. The optimized Fe/Cu bimetallic catalyst applied to the BEF system exhibits 99.76 % removal of 10 mg/L BPA in 11 h, significantly outperforming the BEF with the monometallic catalysts (73.43 % and 58.51 % for Fe and Cu, respectively). The charge transfer resistance of the Fe/Cu catalyst is reduced by 61.79 %–63.09 % compared with that of the Fe and Cu catalysts. The optimized Fe/Cu catalyst is reused up to the eighth cycle with 73.34 % BPA removal efficiency, demonstrating its reuse potential. Microbial community analysis at the anode showed a marked shift, with <em>Pseudomonas</em> abundance increasing from 3.46 % to 51.76 %, suggesting that the optimized Fe/Cu catalyst promoted electroactive microbial enrichment and enhanced system performance.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106126"},"PeriodicalIF":4.1,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070956","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

Feasibility assessment of magnetite for enhancing the clean utilization of lignite through anaerobic digestion 磁铁矿厌氧消化提高褐煤清洁利用的可行性评价

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-16 DOI: 10.1016/j.ibiod.2025.106122

Kai Zhang , Hongyu Guo , Norbert Klitzsch , Daping Xia , Zhazha Hu , Xiao Liu , Bin Zhang , Hao Chen

{"title":"Feasibility assessment of magnetite for enhancing the clean utilization of lignite through anaerobic digestion","authors":"Kai Zhang , Hongyu Guo , Norbert Klitzsch , Daping Xia , Zhazha Hu , Xiao Liu , Bin Zhang , Hao Chen","doi":"10.1016/j.ibiod.2025.106122","DOIUrl":"10.1016/j.ibiod.2025.106122","url":null,"abstract":"<div><div>This study pioneers the application of magnetite in anaerobic digestion of lignite, achieving dual enhancement of biomethane production and coal-derived waste valorization. At an optimal dosage of 2 g, magnetite increased cumulative methane yield by 55.4 % compared to the control, driven by selective enrichment of electroactive bacteria such as <em>norank_f_Synergistaceae</em> and <em>Proteiniclasticum</em>, alongside DIET-driven methanogens dominated by <em>Methanosaeta</em> at 86.29 % abundance. Concurrently, magnetite induced structural modification of lignite through degradation of recalcitrant aliphatic hydrocarbons and a 53.5 % increase in specific surface area from 7.772 to 11.924 m<sup>2</sup>/g, collectively improving the combustion efficiency of residual coal. These findings establish magnetite as a bifunctional catalyst that unlocks the bioenergy potential of low-rank coals while converting residual waste into cleaner solid fuels. The strategy offers coal-intensive regions a sustainable pathway to integrate biogas production with circular coal waste management.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106122"},"PeriodicalIF":4.1,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070955","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

Biodegradation of 1,2-dichloroethane by Ancylobacter sp. BL1: Degradation characteristics, catabolic genes, and bioaugmentation in contaminated soil 双歧杆菌BL1对1,2-二氯乙烷的生物降解：在污染土壤中的降解特性、分解代谢基因和生物强化

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-12 DOI: 10.1016/j.ibiod.2025.106123

Zhiguo Wu , Lang Wang , Tian Qin , Shuxiu Sun , Xueyang Zhang , Zongzheng Yang

{"title":"Biodegradation of 1,2-dichloroethane by Ancylobacter sp. BL1: Degradation characteristics, catabolic genes, and bioaugmentation in contaminated soil","authors":"Zhiguo Wu , Lang Wang , Tian Qin , Shuxiu Sun , Xueyang Zhang , Zongzheng Yang","doi":"10.1016/j.ibiod.2025.106123","DOIUrl":"10.1016/j.ibiod.2025.106123","url":null,"abstract":"<div><div>1,2-dichloroethane (1,2-DCA) contamination has emerged as a notable threat to human health and ecological stability. However, studies on 1,2-DCA-contaminated soils are limited. Further, the remediation potential of bacterial genera capable of the aerobic degradation of 1,2-DCA and their use in the remediation of actual 1,2-DCA-contaminated soils have not yet been comprehensively investigated. To address these research gaps, in the present study, we isolated a novel 1,2-DCA-degrading bacterial strain from 1,2-DCA contaminated soil, identified as <em>Ancylobacter</em> sp. BL1 using 16 S rRNA gene analysis and physiological and biochemical tests. The optimal conditions for degradation by strain BL1 were predicted using response surface methodology, and the degradation kinetics was studied. The metabolic pathway of 1,2-DCA in strain BL1 follows a hydrolytic dehalogenation mechanism. The key genes (<em>dhlA</em>, <em>dhlB</em>, <em>max</em>, and <em>ald</em>) involved in 1,2-DCA degradation exhibited significant homology with previously reported genes except for <em>dhlB</em>, which was located on a large plasmid together with <em>dhlA</em>. To the best of our knowledge, for the first time, an efficient 1,2-DCA-degrading strain, BL1, was utilized for remediating actual 1,2-DCA-contaminated soil. Our findings demonstrated that strain BL1 effectively degraded approximately 86 % of 235 mg/kg of soil 1,2-DCA within 5 days. Bioaugmentation with the isolated strain did not considerably disturb the original microbial communities of the soil, increasing the abundances of microbial flora beneficial to organic carbon degradation and restoring soil enzyme activity. Our study will provide a foundation for the bioremediation of 1,2-DCA-polluted soil.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106123"},"PeriodicalIF":4.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934898","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

Metatranscriptomic profiling reveals microbial succession and adaptation strategies during long-term lignocellulose degradation 超转录组学分析揭示了长期木质纤维素降解过程中的微生物演替和适应策略

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-07 DOI: 10.1016/j.ibiod.2025.106110

Lucas Amoroso Lopes de Carvalho , Anna Carolina de Oliveira Souza , Camila Cesário Fernandes , Cleiton Dias do Prado , Eliana Gertrudes de Macedo Lemos , Lúcia Maria Carareto Alves , Daniel Guariz Pinheiro

{"title":"Metatranscriptomic profiling reveals microbial succession and adaptation strategies during long-term lignocellulose degradation","authors":"Lucas Amoroso Lopes de Carvalho , Anna Carolina de Oliveira Souza , Camila Cesário Fernandes , Cleiton Dias do Prado , Eliana Gertrudes de Macedo Lemos , Lúcia Maria Carareto Alves , Daniel Guariz Pinheiro","doi":"10.1016/j.ibiod.2025.106110","DOIUrl":"10.1016/j.ibiod.2025.106110","url":null,"abstract":"<div><div>Lignocellulosic biomass is an abundant and renewable feedstock, promising for biofuel production and other industrial applications; however, it presents numerous challenges due to its complex structure. Alternatively, microbial systems naturally possess robust mechanisms capable of efficiently degrading this material. In this study, we investigated the functional and compositional changes of a microbial community in the early and late stages of adaptation to a lignocellulosic substrate using a metatranscriptomic approach. The results revealed a transition in the contribution of major phyla associated with degradation, with Bacteroidota decreasing from approximately 18 % to less than 1 % of the relative abundance of expressed transcripts, while Bacillota increased from approximately 3 % to more than 27 % in the late stage. In parallel, a proportional increase in CAZymes related to cellulose and hemicellulose breakdown was revealed in the late stage, suggesting greater cellulolytic and hemicellulolytic activity at later time points. Notably, a substantial fraction of transcripts identified as key lignocellulases (>30 %) were affiliated with the genus <em>Paenibacillus</em> (phylum Bacillota), highlighting its significant role in biomass degradation throughout the adaptation period. These findings highlight how prolonged exposure to lignocellulosic substrates selectively increases microbial taxa and enzymatic pathways critical for efficient biomass conversion. Such results are relevant for the development of biotechnological solutions such as enzymatic bioprospecting and industrial optimization of microbial lignocellulose processing, as well as for the development of strategies for the enrichment of high-performance degraders through targeted cultivation.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106110"},"PeriodicalIF":4.1,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912957","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

Nano zero-valent iron mediated optimization of microalgae-based systems for efficient nutrient and antibiotics removal from aquaculture wastewater 纳米零价铁介导的微藻系统优化对水产养殖废水中营养物和抗生素的高效去除

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-06 DOI: 10.1016/j.ibiod.2025.106114

Chunzhi Zhao , Bei Lu , Zhengfang Wang , Jing Wei , Yongjun Zhao , Shoubing Wang

{"title":"Nano zero-valent iron mediated optimization of microalgae-based systems for efficient nutrient and antibiotics removal from aquaculture wastewater","authors":"Chunzhi Zhao , Bei Lu , Zhengfang Wang , Jing Wei , Yongjun Zhao , Shoubing Wang","doi":"10.1016/j.ibiod.2025.106114","DOIUrl":"10.1016/j.ibiod.2025.106114","url":null,"abstract":"<div><div>This study was dedicated to investigating the influence of nano zero-valent iron (NZVI) on microalgae-based systems in eliminating nutrients and antibiotics from aquaculture wastewater. The aquaculture industry's fast expansion has caused severe pollution issues, as its wastewater is rich in nutrients and antibiotics. Microalgae-based treatment technologies hold promise, yet the effects of NZVI on their performance remain unclear. Four systems were established with different NZVI concentrations (0 mg L<sup>−1</sup>, 5 mg L<sup>−1</sup>, 10 mg L<sup>−1</sup>,20 mg L<sup>−1</sup>). Results showed that 10 mg L<sup>−1</sup> of NZVI best promoted microalgae growth, and Treatment 2 (<em>Chlorella vulgaris</em> + endophytic bacteria + <em>Clonostachys rosea</em>) performed best. Its removal efficiencies of COD, TN, TP, and tetracycline reached 87.29 ± 8.04 %, 87.76 ± 8.32 %, 88.12 ± 8.45 %, and 99.17 ± 0.52 % respectively. This research identified the optimal technology and NZVI concentration, providing crucial theoretical support for the application of microalgae in aquaculture wastewater treatment. However, it should be noted that real-scale validation is still required to fully confirm its effectiveness.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106114"},"PeriodicalIF":4.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143907592","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

Enhanced biodegradation of sulfamethazine in swine manure composting: Pathway elucidation, mechanism insights, and optimization of a novel Bacillus sp. strain 猪粪堆肥中磺胺乙嗪的生物降解：一种新的芽孢杆菌菌株的途径阐明、机制研究和优化

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-05 DOI: 10.1016/j.ibiod.2025.106112

Xiaojun Lin , Jingtong Li , Chunyan Chen , Zifeng Luo , Hongxing Tu , Yuwan Pang , Xiujuan Wang , Qianyi Cai , Zebin Wei , Jianfeng Huang , Jingwen Zeng , Jinrong Qiu

{"title":"Enhanced biodegradation of sulfamethazine in swine manure composting: Pathway elucidation, mechanism insights, and optimization of a novel Bacillus sp. strain","authors":"Xiaojun Lin , Jingtong Li , Chunyan Chen , Zifeng Luo , Hongxing Tu , Yuwan Pang , Xiujuan Wang , Qianyi Cai , Zebin Wei , Jianfeng Huang , Jingwen Zeng , Jinrong Qiu","doi":"10.1016/j.ibiod.2025.106112","DOIUrl":"10.1016/j.ibiod.2025.106112","url":null,"abstract":"<div><div>Sulfamethazine (SMZ), a widely used sulfonamide antibiotic frequently detected in livestock waste streams, requires enhanced microbial degradation strategies to prevent its accumulation and associated environmental hazards. While several microbial strains with SMZ degradation capability have been isolated, comprehensive elucidation of metabolic pathways remains incomplete. This study identified <em>Bacillus</em> sp. strain DLY-11, exhibiting exceptional SMZ degradation performance, from thermally treated swine manure compost substrates. Under optimized parameters (5 % (v/v) bacterial inoculum, 59.7 °C operational temperature, pH 8.08 maintained with buffer system, and 0.4 g/L MgSO<sub>4</sub> supplementation), the strain achieved 97.1 % elimination of 20 mg/L SMZ within 48-h incubation. Metabolic pathway analysis through detected intermediates revealed two distinct biodegradation mechanisms involving sulfonamide bond cleavage, oxidative hydroxylation, sulfur dioxide elimination, ring oxidation, amino group substitution, and glucuronic acid conjugation. These findings enhance understanding of sulfonamide antibiotic catabolism while offering a promising microbial resource for controlling veterinary antibiotic contamination in agro-industrial ecosystems.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106112"},"PeriodicalIF":4.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903948","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

Vertical distribution and environmental controls of methane cycling processes and associated microbial communities in Lake Chaohu sediments 巢湖沉积物甲烷循环过程及其微生物群落的垂直分布与环境控制

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-04 DOI: 10.1016/j.ibiod.2025.106105

Siyan Li , Zhipeng Wei , Yaofei Xu , Aidong Ruan

{"title":"Vertical distribution and environmental controls of methane cycling processes and associated microbial communities in Lake Chaohu sediments","authors":"Siyan Li , Zhipeng Wei , Yaofei Xu , Aidong Ruan","doi":"10.1016/j.ibiod.2025.106105","DOIUrl":"10.1016/j.ibiod.2025.106105","url":null,"abstract":"<div><div>Methane cycling in eutrophic freshwater lake sediments plays a crucial role in global greenhouse gas emissions. However, the vertical distribution patterns of methane cycling-related microbial processes and their controlling factors remain poorly understood in these ecosystems. Here, we quantified the activity potentials of methane cycling processes in sediments through culture experiments with different treatments, integrating molecular microbiology (metagenomics and qPCR) and sediment characteristics. Results revealed that activity potentials of methane cycling-related processes decreased with sediment depth, while the abundances of genes including <em>mcrA</em>, <em>pmoA</em>, <em>NC10 pmoA</em>, and <em>ANME-2d mcrA</em> showed significantly different patterns in their vertical distribution. A shift from acetotrophic to hydrogenotrophic methanogenesis was observed with increasing depth, occurring at 15–20 cm depth. Moreover, nitrate served as the predominant environmental driver of methane cycling in Lake Chaohu sediments. Significant differences were observed in both community composition and dominant genera of methane cycling-related microorganisms between the 0–20 cm and 20–45 cm sediment layers, with the upper layer dominated by aerobic methane oxidation and the lower layer characterized by nitrate-dependent anaerobic methane oxidation and methanogenesis. This study provides the first comprehensive investigation of methane cycling activity potentials and describes the distribution and environmental controls of methane cycling-related microbes across different sediment depths in a eutrophic freshwater lake. These findings advance our understanding of methane cycling processes in eutrophic lake sediments, providing crucial data and a theoretical foundation for understanding the natural sources and sinks of greenhouse gases, as well as potential strategies for mitigating methane emissions from eutrophic lakes.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106105"},"PeriodicalIF":4.1,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902569","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

Complete mineralization of bisphenol F by a newly isolated Microbacterium sp. F2 eliminates its toxicity to sensitive organisms 新分离的微细菌sp. F2完全矿化双酚F，消除其对敏感生物的毒性

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-03 DOI: 10.1016/j.ibiod.2025.106109

Changchang Wang, Qian Li, Kaihua Pan, Qian Zhu, Hongfei Liu, Yanni Huang, Weihao Zhu, Mingliang Zhang, Xin Yan, Qing Hong

{"title":"Complete mineralization of bisphenol F by a newly isolated Microbacterium sp. F2 eliminates its toxicity to sensitive organisms","authors":"Changchang Wang, Qian Li, Kaihua Pan, Qian Zhu, Hongfei Liu, Yanni Huang, Weihao Zhu, Mingliang Zhang, Xin Yan, Qing Hong","doi":"10.1016/j.ibiod.2025.106109","DOIUrl":"10.1016/j.ibiod.2025.106109","url":null,"abstract":"<div><div>Bisphenol F (BPF) is a component of synthetic epoxy resin and polycarbonate plastic. Its residue is frequently detected in water and sediments, posing a threat to aquatic organisms due to the endocrine disrupting effect of BPF. In this study, strain <em>Microbacterium</em> sp. F2, using BPF as the sole carbon source for growth and degrading 98.67 % of 0.10 mM BPF within 24 h, was isolated. Based on the identification of metabolites, strain F2 degraded BPF by the hydroxylation of the bridging carbon atom, and subsequently via oxidation and Baeyer-Villiger reaction to <em>p</em>-hydroxybenzoic acid (PHBA) and 1,4-hydroquinone (HQ), and both of them were further metabolized to provide strain F2 with the carbon source for growth. The half maximal inhibitory concentration (IC50) of BPF, 4,4′-dihydroxybenzophenone (DHBP), 4-hydroxyphenyl 4-hydroxybenzoate (HPHB), HQ and PHBA against <em>Chlorella ellipsoidea</em> at 96 h were 64, 142.5, 205, 325 and 660 μM, respectively. The toxicity of BPF and its metabolites to <em>C. ellipsoidea</em> showed a gradually decreasing trend. The median lethal concentration (LC<sub>50</sub>) of BPF, DHBP, HPHB, HQ, and PHBA against zebrafish at 96 h were 40.50, 70.31, 71.28, 72.44, and 74.94 μM, respectively. There was no obvious difference in the toxicity of metabolites to zebrafish, but their toxicity was significantly lower than that of BPF. However, the complete mineralization of BPF by strain F2 achieved the detoxification of BPF. This study provides a potential strain for the bioremediation of BPF-polluted environment.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106109"},"PeriodicalIF":4.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899601","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

Novel multi-drug-resistant yeast efficiently removed ammonia nitrogen from antibiotic-contaminated aquaculture water 新型多重耐药酵母菌能有效去除受抗生素污染的水产养殖水体中的氨氮

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-03 DOI: 10.1016/j.ibiod.2025.106111

Jie Hu , Tianhong Cai , Uli Klümper , Ling Luo , Ying Zhu , Yan He

{"title":"Novel multi-drug-resistant yeast efficiently removed ammonia nitrogen from antibiotic-contaminated aquaculture water","authors":"Jie Hu , Tianhong Cai , Uli Klümper , Ling Luo , Ying Zhu , Yan He","doi":"10.1016/j.ibiod.2025.106111","DOIUrl":"10.1016/j.ibiod.2025.106111","url":null,"abstract":"<div><div>Aquaculture waters often contain antibiotics, which inhibit the removal of ammonia nitrogen (NH<sub>4</sub><sup>+</sup>-N) by traditional microbial technologies. Thus, it is necessary to find potential microorganisms that can simultaneously tolerate to antibiotics and remove NH<sub>4</sub><sup>+</sup>-N. This study applied a novel isolated multi-drug-resistant yeast strain named <em>Naganishia diffluens</em> Mo to remove NH<sub>4</sub><sup>+</sup>-N in antibiotic-contaminated water. It was found the optimal conditions (glucose as carbon source, pH 7.0, 25 °C, 2 % inoculation, C/N ratio of 10) based on single-factor experiments for <em>Naganishia diffluens</em> Mo removing NH<sub>4</sub><sup>+</sup>-N could achieve 91.6 %. Response surface methodology further opitimized this condition as C/N ratio of 15, 24.9 °C, and pH 6.9, achieving 94.8 % of NH<sub>4</sub><sup>+</sup>-N removal, demonstrating great potentail to remove NH<sub>4</sub><sup>+</sup>-N. Whole-genome analysis indicated that <em>Naganishia diffluens</em> Mo likely removes NH<sub>4</sub><sup>+</sup>-N through ammonia assimilation, utilizing the GDH pathway and the GS-GOGAT metabolic pathway to incorporate NH<sub>4</sub><sup>+</sup>-N into biomass without converting it to nitrate (NO<sub>3</sub><sup>−</sup>) and nitrite (NO<sub>2</sub><sup>−</sup>). Besides, <em>Naganishia diffluens</em> Mo contains multiple antibiotic-resistance genes and genes reponsible for NO<sub>3</sub><sup>−</sup> and NO<sub>2</sub><sup>−</sup> removal, suggesting its great potential for N removal in antibiotic-contaminated wastewater.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106111"},"PeriodicalIF":4.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902568","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

Dinitrogen production modes of diverse anammox bacteria and the contribution in nitrogen cycle: A review 厌氧氨氧化菌不同产氮方式及其在氮循环中的贡献综述

IF 4.1 2区环境科学与生态学

International Biodeterioration & Biodegradation Pub Date : 2025-05-03 DOI: 10.1016/j.ibiod.2025.106113

Yiqing Liang , Peike Gao , Yuhao Jiao , Zizhuang Zhang , Yufeng Xin , Wenjie Xia , Ji-Dong Gu

{"title":"Dinitrogen production modes of diverse anammox bacteria and the contribution in nitrogen cycle: A review","authors":"Yiqing Liang , Peike Gao , Yuhao Jiao , Zizhuang Zhang , Yufeng Xin , Wenjie Xia , Ji-Dong Gu","doi":"10.1016/j.ibiod.2025.106113","DOIUrl":"10.1016/j.ibiod.2025.106113","url":null,"abstract":"<div><div>Anaerobic ammonia oxidation (anammox) bacteria are lithoautotrophs coupling the oxidation of ammonium with the reduction of nitrite to produce dinitrogen (N<sub>2</sub>). Anammox reaction is one of the important ones in inorganic nitrogen removal. Here, the reported anammox bacteria, nitrogen metabolism, dinitrogen production modes coupled with other microorganisms, occurrence and contribution in diverse ecosystems were comprehensively summarized. A total of 36 species affiliated to 7 genera of anammox bacteria have been reported. Anammox bacteria use nitrite and nitric oxide as electron acceptors and ammonium as electron donor to carry out anammox reaction. Some also have functional genes required for Dissimilatory nitrate reduction to ammonium (DNRA) process. Anammox bacteria can conduct nitrogen removal via coupling with multiple microorganisms, and realized nitrogen removal via coupling with iron reduction, sulfate reduction, heterotrophic denitrification, sulfur autotrophic denitrification, partial nitrification, denitrifying anaerobic methane oxidation. However, the mechanisms and construction of efficient symbiotic systems consisting of anammox bacteria and other microorganisms is still unclear. Anammox is widespread in ecosystems, and contributes considerable nitrogen yield. Quantification of the nitrogen loss contributed by anammox bacteria in typical ecosystems is an issue in future. Collectively, bacteria have diverse carbon and nitrogen metabolic pathways, and can remove reactive nitrogen species via coupling with other microorganisms, showing a complex and critical robust roles in nitrogen transformation in diverse ecosystems.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"203 ","pages":"Article 106113"},"PeriodicalIF":4.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902572","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}

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