Environmental microbiology最新文献_第2页

Phylogenomics Untangles the Metabolic Potential of Picochlorum tauri, a New Picoalgal Species Causing a Winter Bloom in the Mediterranean Thau Lagoon 系统基因组学揭示了导致地中海Thau泻湖冬季水华的新皮藻——牛皮藻的代谢潜力

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-24 DOI: 10.1111/1462-2920.70174

Béatrice Bec, Franck Lagarde, Angélique Gobet, Riccardo Aiese Cigliano, Marco Di Marsico, Jean-Michel Hermel, Marion Richard, Emilie Le Floc’h, Robert van Lis, Ariane Atteia

{"title":"Phylogenomics Untangles the Metabolic Potential of Picochlorum tauri, a New Picoalgal Species Causing a Winter Bloom in the Mediterranean Thau Lagoon","authors":"Béatrice Bec, Franck Lagarde, Angélique Gobet, Riccardo Aiese Cigliano, Marco Di Marsico, Jean-Michel Hermel, Marion Richard, Emilie Le Floc’h, Robert van Lis, Ariane Atteia","doi":"10.1111/1462-2920.70174","DOIUrl":"10.1111/1462-2920.70174","url":null,"abstract":"In the winter of 2018–2019, the Mediterranean Thau lagoon experienced an intense green bloom with severe ecological consequences. Here, we aimed at identifying the blooming species and deciphering its metabolic potential. The blooming alga was identified by a metabarcoding approach and later isolated in an axenic form. High-quality nuclear and organellar genome sequences were generated. Phylogenetic and phylogenomic analyses revealed that the alga is a new member of the genus Picochlorum (Trebouxiophyceae, Chlorophyta) that we named Picochlorum tauri. Comparative genomic analyses were conducted to provide insights into (i) genome reduction in the Picochlorum genus with respect to other trebouxiophycean genera and (ii) the metabolic specificities of P. tauri with respect to other eukaryotic picophytoplankton. Genome mining unveiled in P. tauri an extended gene repertoire for carbon concentrating mechanisms, a reduced number of routes for acetyl-CoA synthesis from pyruvate and citrate, and a vitamin B12-dependent carboxylation pathway for propionyl-CoA breakdown. By contrast to the surveyed photosynthetic picoeukaryotes, P. tauri has specific functional traits linked to carbon metabolism, vitamin and chlorophyll synthesis, which are expected to boost physiology. These traits might have contributed to the fast development and maintenance of P. tauri in cool waters under low solar radiance.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://enviromicro-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70174","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Duckweed as an Emerging Model System for Plant–Microbiome Interactions 浮萍是植物与微生物相互作用的新兴模式系统

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-22 DOI: 10.1111/1462-2920.70181

Hidehiro Ishizawa, Yuparat Saimee, Tomomi Sugiyama, Tsubasa Kojima, Daisuke Inoue, Michihiko Ike, Arinthip Thamchaipenet, Masaaki Morikawa

{"title":"Duckweed as an Emerging Model System for Plant–Microbiome Interactions","authors":"Hidehiro Ishizawa, Yuparat Saimee, Tomomi Sugiyama, Tsubasa Kojima, Daisuke Inoue, Michihiko Ike, Arinthip Thamchaipenet, Masaaki Morikawa","doi":"10.1111/1462-2920.70181","DOIUrl":"10.1111/1462-2920.70181","url":null,"abstract":"Understanding the processes through which plant-associated microbiomes influence host physiology and fitness is a central goal of plant–microbiome interaction research. While traditional model plants such as Arabidopsis thaliana have provided foundational platforms to examine these processes, alternative model systems may address certain bottlenecks in current research. In recent years, duckweeds (family Lemnacea) have emerged as a unique model plant offering several experimental advantages owing to their small size, simple morphology, aquatic habitat, and two-dimensional clonal growth. These features facilitate the establishment of highly tractable and reproducible model systems that facilitate robust investigations and high-throughput screening platforms, enabling multifactorial massive parallel experiments. This review provides an overview of the recent studies that have applied the advantages of using duckweed in the field of plant–microbiome interactions to highlight how duckweed-based systems have enabled unique experimental approaches that are difficult in conventional systems. We have also discussed the emerging directions in duckweed–microbiome research, including elucidation of the co-evolutionary processes mediated via metabolic exchange and bottom-up explanation of community structure and functions using synthetic bacterial communities. Together, this review underscores the potential of duckweed to serve as a distinctive model for advancing plant–microbiome interaction research.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://enviromicro-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pre-Crop Choice Shapes Nematode-Attached Bacterial Communities Associated With Reduced Pratylenchus penetrans Invasion of Barley Roots 种植前的选择影响了线虫附着的细菌群落，减少了大麦根部的叶柄线虫入侵

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-18 DOI: 10.1111/1462-2920.70179

Ahmed Elhady, Xorla Kanfra, Shimaa Adss, Holger Heuer

{"title":"Pre-Crop Choice Shapes Nematode-Attached Bacterial Communities Associated With Reduced Pratylenchus penetrans Invasion of Barley Roots","authors":"Ahmed Elhady, Xorla Kanfra, Shimaa Adss, Holger Heuer","doi":"10.1111/1462-2920.70179","DOIUrl":"10.1111/1462-2920.70179","url":null,"abstract":"Soil microbiomes play a crucial role in plant–parasitic nematode suppression; however, the influence of plant–soil interactions remains unclear. This study examines plant–soil feedback effects on microbiomes attached to the cuticle of Pratylenchus penetrans in winter barley. We tested whether bacterial drivers of nematode suppression remain conserved across plant hosts or exhibit host specificity. Surface-sterilised P. penetrans were baited in different soils and rhizospheres, and their attached bacterial communities were analysed. Fallow and rhizosphere microbiomes from reduced P. penetrans invasion in barley, and suppression strength varied by plant species. Only the maize and Ethiopian mustard microbiomes inhibited invasion relative to other microbiomes and to surface-sterilised nematodes. By contrast, association with the oat microbiome did not reduce P. penetrans invasion of barley roots. The suppression of P. penetrans invasion relied on the cuticle-associated bacteria, with maize showing a distinct assembly rich in Proteobacteria and Firmicutes. Suppressive cuticle-associated bacteria differed between nematodes exposed to maize-derived and Ethiopian mustard-derived rhizosphere microbiomes from the same soil. Specific bacterial genera associated with reduced invasion included Chryseobacterium, Duganella, Streptomyces, Asticcacaulis, Pseudomonas, and members of Enterobacteriaceae. These results indicate that crop rotation and cover crop choices could steer nematode-associated microbiomes toward communities that prevent root invasion.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://enviromicro-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Clarifying Terminology in Microbial Ecology: A Call for Precision in Scientific Communication 微生物生态学术语澄清：对科学传播准确性的呼唤

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-18 DOI: 10.1111/1462-2920.70177

Gareth Trubl, Alexander J. Probst

{"title":"Clarifying Terminology in Microbial Ecology: A Call for Precision in Scientific Communication","authors":"Gareth Trubl, Alexander J. Probst","doi":"10.1111/1462-2920.70177","DOIUrl":"10.1111/1462-2920.70177","url":null,"abstract":"<div>\u0000 \u0000 The rapid evolution of microbiology as a field of research has led to the introduction of new terminology and the adaptation of existing terms. However, inconsistencies in the use of these terms, including variations across different scientific disciplines, can lead to confusion and miscommunication within the scientific community. This article discusses the importance of precise terminology in microbiome research, highlighting examples where terms have been misused or redefined without clear justification. We also present a list of frequently used terms in microbial ecology along with their specific definitions. We argue that the misuse of terminology can hinder scientific progress by creating ambiguity and misunderstanding. To address this, we propose a set of guidelines for the consistent use of key terms and provide clear definitions for some of the most commonly misused or newly introduced terms in the field. The definitions provided herein will also function as a guide for young researchers new to the field of microbial ecology. Accurate and consistent use of terminology is crucial for effective communication and collaboration in microbiology research. By adhering to standardised definitions, researchers can ensure that their work is clearly communicated and contributes meaningfully to the progress of science.\u0000 </div>","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EcoFoldDB: Protein Structure-Guided Functional Profiling of Ecologically Relevant Microbial Traits at the Metagenome Scale EcoFoldDB：蛋白质结构引导的生态相关微生物性状在宏基因组尺度上的功能分析。

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-16 DOI: 10.1111/1462-2920.70178

Timothy M. Ghaly, Vaheesan Rajabal, Dylan Russell, Elena Colombi, Sasha G. Tetu

{"title":"EcoFoldDB: Protein Structure-Guided Functional Profiling of Ecologically Relevant Microbial Traits at the Metagenome Scale","authors":"Timothy M. Ghaly, Vaheesan Rajabal, Dylan Russell, Elena Colombi, Sasha G. Tetu","doi":"10.1111/1462-2920.70178","DOIUrl":"10.1111/1462-2920.70178","url":null,"abstract":"Microbial communities are fundamental to planetary health and ecosystem processes. High-throughput metagenomic sequencing has provided unprecedented insights into the structure and function of these communities. However, functionally profiling metagenomes remains constrained due to the limited sensitivity of existing sequence homology-based methods to annotate evolutionarily divergent genes. Protein structure, more conserved than sequence and intrinsically tied to molecular function, offers a solution. Capitalising on recent breakthroughs in structural bioinformatics, we present EcoFoldDB, a database of protein structures curated for ecologically relevant microbial traits, and its companion pipeline, EcoFoldDB-annotate, which leverages Foldseek with the ProstT5 protein language model for rapid structural homology searching directly from sequence data. EcoFoldDB-annotate outperforms state-of-the-art sequence-based methods in annotating metagenomic proteins, in terms of sensitivity and precision. To demonstrate its utility and scalability, we performed structure-guided functional profiling of 32 million proteins encoded by 8000 high-quality metagenome-assembled genomes from the global soil microbiome. EcoFoldDB-annotate could resolve the phylogenetic partitioning of important nitrogen cycling pathways, from taxonomically restricted nitrifiers to more widespread denitrifiers, as well as identifying novel, uncultivated bacterial taxa enriched in plant growth-promoting traits. We anticipate that EcoFoldDB will enable researchers to extract ecological insights from environmental genomes and metagenomes and accelerate discoveries in microbial ecology.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12441223/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Symbiodiniaceae and Bacterial Microbiome Dynamics Differentially Impact the Survival of Dominant Reef-Flat Porites Corals 共生菌科和细菌微生物组动态差异影响优势礁滩孔隙珊瑚的生存

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-13 DOI: 10.1111/1462-2920.70175

Colin Lock, Therese C. Miller, Colin J. Anthony, Héloïse Rouzé, James Fifer, Grace McDermott, Carlos A. Tramonte, Loreto Paulino Jr, Sarah W. Davies, Laurie Raymundo, Bastian Bentlage

{"title":"Symbiodiniaceae and Bacterial Microbiome Dynamics Differentially Impact the Survival of Dominant Reef-Flat Porites Corals","authors":"Colin Lock, Therese C. Miller, Colin J. Anthony, Héloïse Rouzé, James Fifer, Grace McDermott, Carlos A. Tramonte, Loreto Paulino Jr, Sarah W. Davies, Laurie Raymundo, Bastian Bentlage","doi":"10.1111/1462-2920.70175","DOIUrl":"10.1111/1462-2920.70175","url":null,"abstract":"Coral reefs face significant threats across the globe, prompting a surge in restoration efforts aimed at mitigating their global decline. The health, resilience, and adaptability of corals are greatly influenced by their microbial communities, and while the response of coral microbiomes to many environmental stressors has been extensively studied, less is known about their natural dynamics following transplantation, which is an essential process for restoring degraded reef habitats. In this study, we integrated DNA metabarcoding (16S & ITS2) with ecological monitoring to investigate the dynamics of Symbiodiniaceae and bacterial communities in two dominant coral spp., Porites lobata and Porites cylindrica, and their different colour morphs, as they underwent transplantation and an 18-week acclimatisation period. We saw significant differences in microbial communities between the two Porites spp., outplanting sites, and individual coral colonies, as well as a colour morph-related difference in P. lobata bacterial communities. We saw reduced relative abundances of Endozoicomonadaceae, specifically from the genus Parendozoicomonas, following transplantation. P. lobata colonies with later Symbiodiniaceae shifts (18 weeks) had lower long-term survival. Changes in Symbiodiniaceae and bacterial communities have implications for holobiont function and colony survival, which should be considered when designing and implementing coral reef rehabilitation projects.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://enviromicro-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Siderophore-Dependent and -Independent Iron Acquisition Pathways in Marinobacter Nauticus SP17 海洋杆菌SP17的铁载体依赖性和非依赖性铁获取途径

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-13 DOI: 10.1111/1462-2920.70176

Kilian Ducos, Florence Hakil, Nang Htay Yin, Katarzyna Kinska, Ange Angaïts, Francisco Calderon Celis, Ryszard Lobinski, Sophie Nolivos, Régis Grimaud

{"title":"Siderophore-Dependent and -Independent Iron Acquisition Pathways in Marinobacter Nauticus SP17","authors":"Kilian Ducos, Florence Hakil, Nang Htay Yin, Katarzyna Kinska, Ange Angaïts, Francisco Calderon Celis, Ryszard Lobinski, Sophie Nolivos, Régis Grimaud","doi":"10.1111/1462-2920.70176","DOIUrl":"10.1111/1462-2920.70176","url":null,"abstract":"<div>\u0000 \u0000 We explored the iron acquisition pathways of Marinobacter nauticus SP17, which exhibits distinct growth modes, manifesting as a planktonic population on acetate and forming a biofilm while utilising n-alkanes or triglycerides as substrates. The expression of genes encoding iron-containing proteins and growth yields measured under varying iron concentrations suggest that the balance between iron demand and availability plays a key role in regulating these genes in response to the carbon source and/or growth mode. Phenotypic studies of a petrobactin-deficient mutant revealed that, although this siderophore is important, it is not essential for growth on all substrates under iron-deplete conditions. This suggests the presence of petrobactin-independent iron acquisition pathways. One such pathway involves the ferric ion-binding protein FbpA, as a ΔfbpA mutant exhibits reduced growth on all substrates tested under iron limitation. Notably, the double mutant (ΔasbABF ΔfbpA) failed to grow, demonstrating that petrobactin and FbpA contribute to two distinct major iron acquisition pathways. The siderophore-dependent and -independent pathways appear to be largely functionally redundant and are involved in iron acquisition in all growth modes on all carbon sources tested.\u0000 </div>","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predominance of L. monocytogenes Lineage I Clones in Wastewater, Ruminants, and Natural Environments 单核增生乳杆菌I系克隆在废水、反刍动物和自然环境中的优势。

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-07 DOI: 10.1111/1462-2920.70169

Yuval Markovich, Alexandra Moura, Jesús Gomis, Alexandre Leclercq, Ángel Gómez-Martín, Hélène Bracq-Dieye, Carla Palacios-Gorba, Nathalie Tessaud-Rita, Susana Ortolá, Guillaume Vales, M-Adela Yáñez, Pierre Thouvenot, Philippe Pérot, Marc Lecuit, Juan J. Quereda

{"title":"Predominance of L. monocytogenes Lineage I Clones in Wastewater, Ruminants, and Natural Environments","authors":"Yuval Markovich, Alexandra Moura, Jesús Gomis, Alexandre Leclercq, Ángel Gómez-Martín, Hélène Bracq-Dieye, Carla Palacios-Gorba, Nathalie Tessaud-Rita, Susana Ortolá, Guillaume Vales, M-Adela Yáñez, Pierre Thouvenot, Philippe Pérot, Marc Lecuit, Juan J. Quereda","doi":"10.1111/1462-2920.70169","DOIUrl":"10.1111/1462-2920.70169","url":null,"abstract":"Listeria monocytogenes is a saprophytic bacterium and a foodborne pathogen of humans and animals. Little is known about its distribution and genetic diversity across different environments within the same geographical region. We conducted a large-scale longitudinal study in southeastern Spain monitoring Listeria spp. in untreated wastewater, ruminant farms, and natural environments over four seasons (N = 1490 samples, N = 545 isolates) and in food and food-processing environments (N = 7395 samples, N = 255 isolates). Listeria spp. were more abundant in host-associated than natural environments, and non-pathogenic Listeria were more prevalent than L. monocytogenes in both niches. L. monocytogenes was detected in 42.7%, 11.4%, 4.2%, and 3.4% of wastewater, ruminant farms, natural environments, and food-related samples, respectively. Hypervirulent lineage I accounted for 82.9% of L. monocytogenes isolates from wastewater, ruminant farms, and natural environments, while lineage II represented 74.1% in food-related samples. Among 255 L. monocytogenes cgMLST types, 5% were shared across environments, demonstrating circulation between different environments. Persistent L. monocytogenes clones were detected in food processing environments and ruminant farms. Our data suggest anthropogenic activities and livestock drive Listeria spp. dissemination. These results provide insights into the interactions of Listeria spp. in the environment, improving surveillance strategies to reduce pathogen transmission, food contamination, and clinical cases.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://enviromicro-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Varying Responses to Heat Stress and Salinization Between Benthic and Pelagic Riverine Microbial Communities 底栖和远洋河流微生物群落对热胁迫和盐碱化的不同响应。

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-04 DOI: 10.1111/1462-2920.70173

Lisa Boden, Dana Bludau, Guido Sieber, Aman Deep, Daria Baikova, Gwendoline M. David, Una Hadžiomerović, Tom L. Stach, Dominik Buchner, Jens Boenigk

{"title":"Varying Responses to Heat Stress and Salinization Between Benthic and Pelagic Riverine Microbial Communities","authors":"Lisa Boden, Dana Bludau, Guido Sieber, Aman Deep, Daria Baikova, Gwendoline M. David, Una Hadžiomerović, Tom L. Stach, Dominik Buchner, Jens Boenigk","doi":"10.1111/1462-2920.70173","DOIUrl":"10.1111/1462-2920.70173","url":null,"abstract":"Microbial communities play a crucial role in the functioning of freshwater ecosystems but are continuously threatened by climate change and anthropogenic activities. Elevated temperatures and salinisation are particularly challenging for freshwater habitats, but little is known about how microbial communities respond to the simultaneous exposure to these stressors. Here, we use mesocosm experiments and amplicon sequencing data to investigate the responses of pelagic and benthic microbial communities to temperature and salinity increases, both individually and in combination. Our results highlight the varying responses of freshwater microbial communities, with sediment communities exhibiting greater stability in response to environmental changes compared to water column communities, and salinisation having a more pronounced impact on microeukaryotes compared to prokaryotes. Simultaneous exposure to elevated temperature and salinity reduced the impact of salinisation on prokaryotes, while microeukaryotes were similarly affected by the combined treatments and salinisation alone. These findings emphasise the complexity of microbial responses to single and multiple stressors, underscoring the need to consider both individual and interactive effects when predicting ecosystem responses to environmental changes.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://enviromicro-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144995742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural Effect of Pesticides on Rhizosphere Microbiome 农药对根际微生物群的结构效应

IF 4 2区生物学

Environmental microbiology Pub Date : 2025-09-01 DOI: 10.1111/1462-2920.70172

Yitian Yu, Qi Zhang, Zhenyan Zhang, Nuohan Xu, Bingfeng Chen, Binghai Lv, Liwei Sun, Dong Zhu, Haifeng Qian, Tao Lu

{"title":"Structural Effect of Pesticides on Rhizosphere Microbiome","authors":"Yitian Yu, Qi Zhang, Zhenyan Zhang, Nuohan Xu, Bingfeng Chen, Binghai Lv, Liwei Sun, Dong Zhu, Haifeng Qian, Tao Lu","doi":"10.1111/1462-2920.70172","DOIUrl":"10.1111/1462-2920.70172","url":null,"abstract":"<div>\u0000 \u0000 Pesticide residues in the field pose significant risks to nontarget organisms, and their structures determine their environmental behaviour. However, the effects of different pesticide structures on rhizosphere microbial function remain unclear. Herein, the effects of nine pesticides with sulfonylurea, carbamate and pyrethroid motifs on the wheat rhizosphere microbiome were investigated, revealing the potential mechanisms of ecological risk accumulation. The inhibitory effects of the sulfonylurea motif on microbial diversity were 6 and 19 times those of the other two pesticides, and the carbamate motif disrupted rhizosphere community stability. In addition, the sulfonylurea and carbamate motifs induced 0.3-fold increases in antibiotic resistance genes compared to the control. The adverse effects of the pyrethroid motif were milder than those of the other two motifs in all assessments. With distinct structural effects, we identified key taxa that responded to these motifs, not only having the degrading potential function to specific pesticides but also contributing to the ecological risk accumulation in the rhizosphere. Our findings provide new evidence that structural motif-specific induction of antibiotic resistance genes contributes to increased ecological risks from pesticide exposure.\u0000 </div>","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"27 9","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0