International Biodeterioration & Biodegradation最新文献

{"title":"The roles of Paracoccus huijuniae for enhancing denitrification with N-methyl pyrrolidone as the electron donor","authors":"Meng Huang ,&nbsp;Songyun Chen ,&nbsp;Fei Liu ,&nbsp;Haiyun Zhang ,&nbsp;Xiaobing Gao ,&nbsp;Linlin Chen ,&nbsp;Yongming Zhang ,&nbsp;Bruce E. Rittmann","doi":"10.1016/j.ibiod.2025.106098","DOIUrl":"10.1016/j.ibiod.2025.106098","url":null,"abstract":"<div><div>A strain of <em>Paracoccus huijuniae</em> was isolated from acclimated denitrifying biomass. It was tested for denitrification activity alone or by bioaugmenting it into the denitrifying biomass when N-methyl pyrrolidone (NMP) was the electron donor. The nitrate removal rate was increased by 22 % when <em>P. huijuniae</em> was bioaugmented into the denitrifying biomass, since the nitrate-reduction rate by <em>P. huijuniae</em> was 3.2-fold greater than that for the denitrifying biomass alone. <em>P. huijuniae</em> alone achieved 100 % nitrate conversion to nitrite, but nitrite was not reduced unless nitrate disappeared completely, and then nitrite reduction was slow. Stoichiometric nitrite accumulation can be attributed to the activity of <em>nirK</em> in <em>P. huijuniae</em> being inhibited by the presence of nitrate. Thus, bioaugmentation with <em>P. huijuniae</em> enhanced overall denitrification kinetics by accelerating nitrate reduction to nitrite, but subsequent denitrification steps were completed by other denitrifying strains in the community.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"202 ","pages":"Article 106098"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826240","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}

{"title":"Enhancing anaerobic methane production in the co-presence of PLA, TPS, and PBAT mixed under hydrogen-rich conditions","authors":"Eun Seo Lee ,&nbsp;Seon Yeong Park ,&nbsp;Chang Gyun Kim","doi":"10.1016/j.ibiod.2025.106094","DOIUrl":"10.1016/j.ibiod.2025.106094","url":null,"abstract":"<div><div>Methane (CH₄) production was compared during mesophilic anaerobic digestion (AD) under H₂/CO₂ purged versus N₂ purged, investigating the biodecomposition of polylactic acid (PLA), thermoplastic starch (TPS), and polybutylene adipate terephthalate (PBAT) as the co-presence of PLA/TPS (LS), TPS/PBAT (SB), PLA/PBAT (LB), and PLA/TPS/PBAT (LSB). Therein, 427.37 and 339.22 mL CH₄/g volatile solid (VS) were produced endogenously under H₂/CO₂ and N₂ purged, respectively. CH₄ production from LS and SB was further increased from 170 to 193 mL CH₄/g VS compared to the respective control samples. The degradation of LB and LSB resulted in significantly higher CH₄ production under H₂/CO₂ (157.49 and 229.21 mL CH₄/g VS) than under N₂ (106.88 and 119.63 mL CH₄/g VS, respectively). Metagenome sequencing revealed that H₂/CO₂ purged led syntrophs of hydrogenotrophic methanogens (e.g., <em>Firmicutes</em>) overcoming higher strengths of fatty acids and utilizing H₂ to produce more CH₄. Subsequently, PLA and PBAT exhibited breakdowns in the polymer chains and molecular weight along with increased crystallinity. This was confirmed through Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC). This study highlights the critical roles of co-digestion with H₂ and bioplastics in increasing CH₄ production in the AD system.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"202 ","pages":"Article 106094"},"PeriodicalIF":4.1,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823464","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}

{"title":"Microbial driven nitrogen transformation in the plant rhizosphere of a saltmarsh wetland: From functional genes to activity and contribution","authors":"Manping Zhang ,&nbsp;Shanshan Sun ,&nbsp;Xushun Gu ,&nbsp;Shaoxuan Ding ,&nbsp;Shengbing He","doi":"10.1016/j.ibiod.2025.106086","DOIUrl":"10.1016/j.ibiod.2025.106086","url":null,"abstract":"<div><div>Rhizosphere soil microbes played a crucial role in regulating nitrogen transformations in saltmarsh wetlands. Nevertheless, studies that quantitatively determined bacterial metabolic clusters to predict the biological and environmental impacts were limited. In this study, stable isotopic and molecular biological analyses were utilized to detect bacterial biodiversity, community structure, abundances and activities in the rhizosphere. Results showed that the absolute copy numbers of nitrogen functional genes (<em>amoA</em>, <em>nirS</em>, <em>nosZ</em>, etc.) and 16S rRNA were 7.57 × 10⁴-6.68 × 10⁷ and 7.65 × 10⁸-8.21 × 10⁹ copies·g⁻¹, and the relative abundances of nitrifying genera and dissimilatory nitrate reduction processes (anammox, DNRA and denitrification) varied from 0.02 % to 0.10 % and from 47.95 % to 63.16 %, respectively. The <em>Sphingomonas</em>, <em>Lysobacter</em>, <em>Massilia</em> and <em>Pseudarthrobacter</em> were the predominant genera related to nitrogen loss by denitrification process, and DNRA (<em>Pseudomonas</em>, <em>Paracoccus</em> and <em>Bacillus</em>), anammox (<em>Candidatus</em> Scalindua and <em>Candidatus</em> Kuenenia) and nitrification (<em>Nitrosomonas</em> and <em>Nitrospira</em>) co-existed with denitrifying organisms. The potential rates of nitrification, denitrification, anammox and DNRA (dissimilatory nitrate reduction to ammonium) were 69.08–170.01, 219.04–325.67, 15.87–37.06 and 29.94–51.21 nmolN₂·g⁻¹·d⁻¹, respectively; and the nitrification was the crucial pathway of NH₄⁺ oxidation, while denitrification played a vital role in NO_X⁻ reduction and N₂ production. In the meantime, the rhizosphere soil physicochemical properties could affect the microbial distributions, and NH₄⁺, NO₂⁻, NO₃⁻, TOC (total organic carbon), TS (total sulfur) and TN (total nitrogen) were the most crucial factors. The microbial functional profiles were predicted by FAPROTAX analysis, and several functions related to nitrogen metabolisms were annotated, such as nitrate reduction and ammonia oxidation. Overall, these findings provided significant insights into microbial driven nitrogen cycles in rhizosphere soil of saltmarsh wetlands.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"202 ","pages":"Article 106086"},"PeriodicalIF":4.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821560","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}

{"title":"Antifungal activity evaluation of three traditional Chinese herbs against biodeterioration of cultural heritage","authors":"Tianxiao Li ,&nbsp;Huabing Zhang ,&nbsp;Xiang Tan ,&nbsp;Rui Zhang ,&nbsp;Fasi Wu ,&nbsp;Zongren Yu ,&nbsp;Bomin Su","doi":"10.1016/j.ibiod.2025.106093","DOIUrl":"10.1016/j.ibiod.2025.106093","url":null,"abstract":"<div><div>Natural biocides are increasingly used in the conservation of cultural heritage against biodeterioration. Traditional Chinese medicine has identified many plants with antimicrobial properties, such as <em>Scutellaria baicalensis</em>, <em>Coptis chinensis</em> and <em>Lonicerae japonicae flos</em>, which provides a rich resource as natural biocides. In this study, the antifungal and antibiofilm activity of these herbs was evaluated against the dominant fungi that always cause deterioration of the cultural heritage. The relationship between the addition of the screened biocide and the color change of the mural and limestone was also analyzed, then the identified maximum acceptable dose was added to the mural and limestone samples to assess the <em>in situ</em> antimicrobial performance. The results showed that <em>S. baicalensis</em> and <em>C. chinensis</em> had the antifungal activity and the active components in the two herbs were baicalin and berberine. Furthermore, a synergistic antifungal activity of the two components was observed and the MICs of the mixture were similar to those of <em>Cinnamomum verum</em> essential oil. In addition, the mixture of baicalin and berberine was also able to inhibit biofilm formation. Because of the yellow color of baicalin and berberine, when they were added, the color of the samples began to turn yellow. However, the maximum addition, with no significant effect on the aesthetic appearance, was still able to inhibit fungal growth in the <em>in situ</em> tests. In conclusion, the mixture of baicalin and berberine could be an alternative natural biocide of <em>C. verum</em> essential oil for the conservation of cultural heritage against biodeterioration.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"202 ","pages":"Article 106093"},"PeriodicalIF":4.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817146","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}

{"title":"Microbiome analysis of novel cement composites admixed with biopolymer and silver nanoparticles","authors":"Marta Sybis ,&nbsp;Justyna Staninska-Pięta ,&nbsp;Emil Paluch ,&nbsp;Emilia Konował ,&nbsp;Paweł Cyplik ,&nbsp;Łukasz Wolko ,&nbsp;Rafal J. Wiglusz ,&nbsp;Jakub Czarny ,&nbsp;Agnieszka Piotrowska-Cyplik","doi":"10.1016/j.ibiod.2025.106084","DOIUrl":"10.1016/j.ibiod.2025.106084","url":null,"abstract":"<div><div>This study analyses the effect of cement composites containing natural plastificator - silver nanosized particles (AgNPs) stabilised with biopolymer (starch derivative – dextrin) on the spatial, taxonomic, and functional structure of the bacterial metabiome in the context of their potential to deteriorate the wastewater infrastructure (in-situ testing). The obtained results showed that the presence of AgNPs inhibited the formation of the complex spatial structure of the biofilm and contributed to significant changes in the structure of bacterial metapopulation. The highest sensitivity to the presence of nanoparticles was demonstrated by microorganisms categorised into the order <em>Caulobacterales</em>, the genera <em>Caulobacter</em> and <em>Mycoplana</em>, and among the taxa responsible for sulphur metabolism – the genera <em>Thiovirga</em>, <em>Thiofaba</em> and <em>Thiothrix</em>. On the surface of nanocomposites were found nanoparticle-resistant groups from the families <em>Rhodobacteraceae</em>, <em>Porhyromonadaceae</em>, <em>Campylobacteriaceae</em> and the genera <em>Bacillus</em>, <em>Pseudomonas</em>, <em>Sulfurospirillum</em>, <em>Microvulga</em>, <em>Dysgonomonas</em>, <em>Propionobacterium</em>, <em>Ralstonia</em>, <em>Renibacterium</em>, <em>Desulfosporosinus</em>, <em>Metylobacterium</em> and <em>Anoxyba</em>cillus, all playing a potential role in the deterioration of concrete structures. Despite this, relative to the reference sample, the total predicted thiosulfate oxidation potential was lower in the variants with nanocomposite and the nanocomposite with nano-coating by 52 % and 29 %, respectively. The integration of plasticizers and nanosized silver resulted in the development of a multifunctional preparation that exhibits bactericidal efficiency and enhances the workability, durability, and compressive strength of cement composites. This innovative formulation has the potential to be applied in a wide range of contexts, including the construction of wastewater wells.</div></div>","PeriodicalId":13643,"journal":{"name":"International Biodeterioration & Biodegradation","volume":"202 ","pages":"Article 106084"},"PeriodicalIF":4.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807255","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}

{"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}

{"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}

{"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}

{"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}

{"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⁻¹ 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}