Environmental microbiology最新文献_第8页

Optimal Cell Length for Exploration and Exploitation in Chemotactic Planktonic Bacteria 趋化浮游细菌最佳细胞长度的探索与开发

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-12-19 DOI: 10.1111/1462-2920.70021

Òscar Guadayol, Rudi Schuech, Stuart Humphries

{"title":"Optimal Cell Length for Exploration and Exploitation in Chemotactic Planktonic Bacteria","authors":"Òscar Guadayol, Rudi Schuech, Stuart Humphries","doi":"10.1111/1462-2920.70021","DOIUrl":"10.1111/1462-2920.70021","url":null,"abstract":"Elongated morphologies are prevalent among motile bacterioplankton in aquatic systems. This is often attributed to enhanced chemotactic ability, but how long is best? We hypothesized the existence of an optimal cell length for efficient chemotaxis resulting from shape-imposed physical constraints acting on the trade-off between rapid exploration versus efficient exploitation of nutrient sources. To test this hypothesis, we evaluated the chemotactic performance of elongated cephalexin-treated Escherichia coli towards α-methyl-aspartate in a microfluidic device creating linear, stable and quiescent chemical gradients. Our experiments showed cells of intermediate length aggregating most tightly to the chemoattractant source. A sensitivity analysis of an Individual-Based-Model replicating these results showed that 1) cells of intermediate length are optimal at transient states, whereas at steady state longest cells are best, 2) poor chemotactic performance of very short cells is caused by directionality loss, and 3) long cells are penalized by brief, slow runs. Finally, we evaluated chemotactic performance of cells of different length with simulations of a phycosphere, and found that long cells swimming in a run-and-reverse pattern with extended runs and moderate speeds are most efficient in this microenvironment. Overall, our results suggest that the stability of the chemical landscape plays a role in cell-size selection.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 12","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857715","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

New Campylobacter Lineages in New Zealand Freshwater: Pathogenesis and Public Health Implications 新西兰淡水中新的弯曲杆菌谱系：发病机制和公共卫生意义

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-12-16 DOI: 10.1111/1462-2920.70016

Adrian L. Cookson, Sara Burgess, Anne C. Midwinter, Jonathan C. Marshall, Marie Moinet, Lynn Rogers, Ahmed Fayaz, Patrick J. Biggs, Gale Brightwell

{"title":"New Campylobacter Lineages in New Zealand Freshwater: Pathogenesis and Public Health Implications","authors":"Adrian L. Cookson, Sara Burgess, Anne C. Midwinter, Jonathan C. Marshall, Marie Moinet, Lynn Rogers, Ahmed Fayaz, Patrick J. Biggs, Gale Brightwell","doi":"10.1111/1462-2920.70016","DOIUrl":"10.1111/1462-2920.70016","url":null,"abstract":"This study investigated the diversity of thermophilic Campylobacter species isolated from three New Zealand freshwater catchments affected by pastoral and urban activities. Utilising matrix-assisted laser desorption ionisation-time of flight and whole genome sequence analysis, the study identified Campylobacter jejuni (n = 46, 46.0%), C. coli (n = 39, 39%), C. lari (n = 4, 4.0%), and two novel Campylobacter species lineages (n = 11, 11%). Core genome sequence analysis provided evidence of prolonged persistence or continuous faecal shedding of closely related strains. The C. jejuni isolates displayed distinct sequence types (STs) associated with human, ruminant, and environmental sources, whereas the C. coli STs included waterborne ST3302 and ST7774. Recombination events affecting loci implicated in human pathogenesis and environmental persistence were observed, particularly in the cdtABC operon (encoding the cytolethal distending toxin) of non-human C. jejuni STs. A low diversity of antimicrobial resistance genes (aadE-Cc in C. coli), with genotype/phenotype concordance for tetracycline resistance (tetO) in three ST177 isolates, was noted. The data suggest the existence of two types of naturalised waterborne Campylobacter: environmentally persistent strains originating from waterbirds and new environmental species not linked to human campylobacteriosis. Identifying and understanding naturalised Campylobacter species is crucial for accurate waterborne public health risk assessments and the effective allocation of resources for water quality management.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 12","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832158","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

Pavlovian-Type Learning in Environmental Bacteria: Regulation of Herbicide Resistance by Arsenic in Pseudomonas putida 环境细菌的巴甫洛夫学习：砷对恶臭假单胞菌除草剂抗性的调节

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-12-12 DOI: 10.1111/1462-2920.70012

David Paez-Espino, Gonzalo Durante-Rodríguez, Elena Alonso Fernandes, Manuel Carmona, Victor de Lorenzo

{"title":"Pavlovian-Type Learning in Environmental Bacteria: Regulation of Herbicide Resistance by Arsenic in Pseudomonas putida","authors":"David Paez-Espino, Gonzalo Durante-Rodríguez, Elena Alonso Fernandes, Manuel Carmona, Victor de Lorenzo","doi":"10.1111/1462-2920.70012","DOIUrl":"10.1111/1462-2920.70012","url":null,"abstract":"The canonical arsRBC genes of the ars1 operon in Pseudomonas putida KT2440, which confer tolerance to arsenate and arsenite, are followed by a series of additional ORFs culminating in phoN1. The phoN1 gene encodes an acetyltransferase that imparts resistance to the glutamine synthetase inhibitor herbicide phosphinothricin (PPT). The co-expression of phoN1 and ars genes in response to environmental arsenic, along with the physiological effects, was analysed through transcriptomics of cells exposed to the oxyanion and phenotypic characterization of P. putida strains deficient in different components of the bifan motif governing arsenic resistance in this bacterium. Genetic separation of arsRBC and phoN1 revealed that their associated phenotypes operate independently, indicating that their natural co-regulation is not functionally required for simultaneous response to the same signal. The data suggest a scenario of associative evolution, akin to Pavlovian conditioning, where two unrelated but frequently co-occurring signals result in one regulating the other's response – even if there is no functional link between the signal and the response. Such surrogate regulatory events may provide an efficient solution to complex regulatory challenges and serve as a genetic patch to address transient gaps in evolving regulatory networks.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 12","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142815714","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

Gene Expression by a Model Fungus in the Ascomycota Provides Insight Into the Decay of Fungal Necromass 一种模式真菌在子囊菌群中的基因表达为真菌坏死块的腐烂提供了新的见解

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-12-08 DOI: 10.1111/1462-2920.70006

Irshad Ul Haq, Peter Kennedy, Kathryn M. Schreiner, Julia C. Agnich, Jonathan S. Schilling

{"title":"Gene Expression by a Model Fungus in the Ascomycota Provides Insight Into the Decay of Fungal Necromass","authors":"Irshad Ul Haq, Peter Kennedy, Kathryn M. Schreiner, Julia C. Agnich, Jonathan S. Schilling","doi":"10.1111/1462-2920.70006","DOIUrl":"10.1111/1462-2920.70006","url":null,"abstract":"Dead fungal cells, known as necromass, are increasingly recognised as significant contributors to long-term soil carbon pools, yet the genes involved in necromass decomposition are poorly understood. In particular, how microorganisms degrade necromass with differing initial cell wall chemical compositions using carbohydrate-active enzymes (CAZymes) has not been well studied. Based on the frequent occurrence and high abundance of the fungal genus Trichoderma on decaying fungal necromass in situ, we grew Trichoderma reesei RUT-C30 on low and high melanin necromass of Hyaloscypha bicolor (Ascomycota) in liquid cultures and assessed T. reesei gene expression relative to each other and relative to glucose. Transcriptome data revealed that T. reesei up-regulated many genes (over 100; necromass versus glucose substrate) coding for CAZymes, including enzymes that would target individual layers of an Ascomycota fungal cell wall. We also observed differential expression of protease- and laccase-encoding genes on high versus low melanin necromass, highlighting a subset of genes (fewer than 15) possibly linked to the deconstruction of melanin, a cell wall constituent that limits necromass decay rates in nature. Collectively, these results advance our understanding of the genomic traits underpinning the rates and fates of carbon turnover in an understudied pool of Earth's belowground carbon, fungal necromass.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 12","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793544","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

Isolation and characterization of a novel methanogen Methanosarcina hadiensis sp. nov. from subsurface Boom Clay pore water 新型产甲烷菌Methanosarcina hadiensis sp. 11 .的分离与特性研究

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-12-03 DOI: 10.1111/1462-2920.70004

Francisco Javier Giménez, Eveline Peeters, Miroslav Honty, Natalie Leys, Kristel Mijnendonckx

{"title":"Isolation and characterization of a novel methanogen Methanosarcina hadiensis sp. nov. from subsurface Boom Clay pore water","authors":"Francisco Javier Giménez, Eveline Peeters, Miroslav Honty, Natalie Leys, Kristel Mijnendonckx","doi":"10.1111/1462-2920.70004","DOIUrl":"10.1111/1462-2920.70004","url":null,"abstract":"Safe geological disposal of radioactive waste requires a thorough understanding of geochemical conditions in the host formation. Boom Clay is a potential candidate in Belgium, where active methanogenesis has been detected in its deep subsurface, influencing the local geochemistry. However, the pathways driving this process and the characteristics of the methanogenic archaea involved remain unclear. We isolated a distinct archaeal strain from Boom Clay pore water and characterized it geno- and phenotypically. Isolate TD41E1-1 belongs to a novel species of the Methanosarcina genus, for which the name Methanosarcina hadiensis sp. nov. is proposed. TD41E1-1 cells are coccus-shaped, irregularly sized cells enveloped by extracellular polymer substances. Growth and substrate utilization experiments and genomic analysis demonstrated that the strain prefers methylated compounds or hydrogen as substrates for methane production. Although it possesses a complete acetoclastic pathway, no growth was observed in the presence of acetate in the tested conditions. Based on its phylogenetic relation to other known Methanosarcina species and on the presence of c-type cytochromes, it can be concluded that the strain likely occupies an intermediate position between type I and type II Methanosarcina species. These findings provide valuable insights for assessing Boom Clay's suitability for geological disposal of radioactive waste.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 12","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142763836","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

Succession of Bacteria and Archaea Within the Soil Micro-Food Web Shifts Soil Respiration Dynamics 土壤微食物网中细菌和古细菌的演替改变了土壤呼吸动力学

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-11-21 DOI: 10.1111/1462-2920.70007

Mandip Tamang, Johannes Sikorski, Miriam van Bommel, Marc Piecha, Tim Urich, Liliane Ruess, Katharina Huber, Meina Neumann-Schaal, Michael Pester

{"title":"Succession of Bacteria and Archaea Within the Soil Micro-Food Web Shifts Soil Respiration Dynamics","authors":"Mandip Tamang, Johannes Sikorski, Miriam van Bommel, Marc Piecha, Tim Urich, Liliane Ruess, Katharina Huber, Meina Neumann-Schaal, Michael Pester","doi":"10.1111/1462-2920.70007","DOIUrl":"10.1111/1462-2920.70007","url":null,"abstract":"Bacterivorous nematodes are important grazers in the soil micro-food web. Their trophic regulation shapes the composition and ecosystem services of the soil microbiome, but the underlying population dynamics of bacteria and archaea are poorly understood. We followed soil respiration and 221 dominant bacterial and archaeal 16S rRNA gene amplicon sequencing variants (ASVs) in response to top-down control by a common bacterivorous soil nematode, Acrobeloides buetschlii, bottom-up control by maize litter amendment and their combination over 32 days. Maize litter amendment significantly increased soil respiration, while A. buetschlii addition caused an earlier peak in soil respiration. Underlying bacterial and archaeal population dynamics separated into five major response types, differentiating in their temporal abundance maxima and minima. In-depth analysis of these population dynamics identified a broad imprint of A. buetschlii grazing on dominant bacterial (Acidobacteriota, Bacteroidota, Gemmatimonadota, Pseudomonadota) and archaeal (Nitrososphaerota) ASVs. Combined bottom-up control by maize litter and top-down control by A. buetschlii grazing caused a succession of soil microbiota, driven by population changes first in the Bacteroidota, then in the Pseudomonadota and finally in the Acidobacteriota and Nitrososphaerota. Our results are an essential step forward in understanding trophic modulation of soil microbiota and its feedback on soil respiration.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142684946","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

Another tool in the toolbox: Aphid-specific Wolbachia protect against fungal pathogens 工具箱中的另一种工具蚜虫特异性狼杆菌可抵御真菌病原体

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-11-19 DOI: 10.1111/1462-2920.70005

Clesson H. V. Higashi, Vilas Patel, Bryan Kamalaker, Rahul Inaganti, Alberto Bressan, Jacob A. Russell, Kerry M. Oliver

{"title":"Another tool in the toolbox: Aphid-specific Wolbachia protect against fungal pathogens","authors":"Clesson H. V. Higashi, Vilas Patel, Bryan Kamalaker, Rahul Inaganti, Alberto Bressan, Jacob A. Russell, Kerry M. Oliver","doi":"10.1111/1462-2920.70005","DOIUrl":"10.1111/1462-2920.70005","url":null,"abstract":"Aphids harbor nine common facultative symbionts, most mediating one or more ecological interactions. Wolbachia pipientis, well-studied in other arthropods, remains poorly characterized in aphids. In Pentalonia nigronervosa and P. caladii, global pests of banana, Wolbachia was initially hypothesized to function as a co-obligate nutritional symbiont alongside the traditional obligate Buchnera. However, genomic analyses failed to support this role. Our sampling across numerous populations revealed that more than 80% of Pentalonia aphids carried an M-supergroup strain of Wolbachia (wPni). The lack of fixation further supports a facultative status for Wolbachia, while high infection frequencies in these entirely asexual aphids strongly suggest Wolbachia confers net fitness benefits. Finding no correlation between Wolbachia presence and food plant use, we challenged Wolbachia-infected aphids with common natural enemies. Bioassays revealed that Wolbachia conferred significant protection against a specialized fungal pathogen (Pandora neoaphidis) but not against generalist pathogens or parasitoids. Wolbachia also improved aphid fitness in the absence of enemy challenge. Thus, we identified the first clear benefits for aphid-associated Wolbachia and M-supergroup strains specifically. Aphid-Wolbachia systems provide unique opportunities to merge key models of symbiosis to better understand infection dynamics and mechanisms underpinning symbiont-mediated phenotypes.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672959","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

Bacterial communities on giant kelp in the Magellan Strait: Geographical and intra-thallus patterns 麦哲伦海峡巨型海藻上的细菌群落：地理和表皮内模式

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-11-11 DOI: 10.1111/1462-2920.70003

Daniela F. Soto, Camilo Muñoz, Pirjo Huovinen, José Garcés-Vargas, Iván Gómez

{"title":"Bacterial communities on giant kelp in the Magellan Strait: Geographical and intra-thallus patterns","authors":"Daniela F. Soto, Camilo Muñoz, Pirjo Huovinen, José Garcés-Vargas, Iván Gómez","doi":"10.1111/1462-2920.70003","DOIUrl":"10.1111/1462-2920.70003","url":null,"abstract":"The giant kelp Macrocystis pyrifera is categorized as a keystone species, forming highly productive forests that provide ecosystem services and host a remarkable marine biodiversity of macro and microorganisms. The association of microorganisms with the algae is close and can be functionally interdependent. The Magellan Strait, a natural marine passage between the Atlantic and Pacific oceans, harbours extensive giant kelp forests. However, information related to the diversity of bacterial communities in this region is still scarce. In this study, 16S rRNA gene metabarcoding was used to characterize the diversity and composition of bacterial communities associated with apical blades and sporophylls of M. pyrifera from different sites (Bahía Buzo, San Gregorio, and Buque Quemado). Additionally, data from satellites and reanalysis, as well as tide data, were used to characterize the environmental variability. The findings revealed discernible local variations in bacterial taxa across sampling sites, with consistent dominance of Proteobacteria, Verrucomicrobia, Bacteroidetes, and Planctomycetes. Furthermore, a distinctive bacterial community structure was identified between apical and sporophyll blades of M. pyrifera. This research marks the inaugural characterization of bacterial community diversity and composition associated with M. pyrifera in the remote and understudied sub-Antarctic region of the Magellan Strait.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142599928","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

Bee microbiomes in a changing climate: Investigating the effects of temperature on solitary bee life history and health 不断变化的气候中的蜜蜂微生物群：调查温度对独居蜜蜂生活史和健康的影响

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-11-08 DOI: 10.1111/1462-2920.70002

Bailey L. Crowley, Robert N. Schaeffer

{"title":"Bee microbiomes in a changing climate: Investigating the effects of temperature on solitary bee life history and health","authors":"Bailey L. Crowley, Robert N. Schaeffer","doi":"10.1111/1462-2920.70002","DOIUrl":"10.1111/1462-2920.70002","url":null,"abstract":"Climate change is rapidly warming thermal environments, an important abiotic stimulus governing interactions between microbial symbionts and their hosts. Increasing evidence suggests that solitary bees rely on pollen provision microbes for successful development. However, the effects of heat stress on provision microbiota and the resulting consequences for larval health and development remain to be examined. We performed an in vitro study to investigate the effects of the thermal environment on provision microbiome composition and measured fitness outcomes for Osmia lignaria larvae. While pollen sterilisation removed bacteria from microbe-rich provisions, larval survivorship did not significantly differ between bees reared on microbe-rich (unmanipulated) diets and provisions treated with ethylene oxide (EO) gas. In contrast to previous research in solitary bees, larvae reared on EO-treated provisions weighed more and had higher total fat content, with temperature moderating the degree of difference. As anticipated, we observed a negative relationship between the duration of larval development and temperature. Our results indicated that an intact provision microbiota may not always improve bee fitness and that bee-microbe interactions during larval development may contribute to the size-shrinking effect observed for cavity-nesting bees under warming conditions.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597657","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

Understanding the ecological versatility of Tetracladium species in temperate forest soils 了解温带森林土壤中四cladium 物种的生态多样性。

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-11-04 DOI: 10.1111/1462-2920.70001

Anna Lazar, Richard P. Phillips, Stephanie Kivlin, Gary D. Bending, Ryan M. Mushinski

{"title":"Understanding the ecological versatility of Tetracladium species in temperate forest soils","authors":"Anna Lazar, Richard P. Phillips, Stephanie Kivlin, Gary D. Bending, Ryan M. Mushinski","doi":"10.1111/1462-2920.70001","DOIUrl":"10.1111/1462-2920.70001","url":null,"abstract":"Although Tetracladium species have traditionally been studied as aquatic saprotrophs, the growing number of metagenomic and metabarcoding reports detecting them in soil environments raises important questions about their ecological adaptability and versatility. We investigated the factors associated with the relative abundance, diversity and ecological dynamics of Tetracladium in temperate forest soils. Through amplicon sequencing of soil samples collected from 54 stands in six forest sites across the eastern United States, we identified 29 distinct Amplicon Sequence Variants (ASVs) representing Tetracladium, with large differences in relative abundance and small changes in ASV community composition among sites. Tetracladium richness was positively related to soil pH, soil temperature, total sulphur and silt content, and negatively related to plant litter quality, such as the lignin-to-nitrogen ratio and the lignocellulose index. Co-occurrence network analysis indicated negative relationships between Tetracladium and other abundant fungal groups, including ectomycorrhizal and arbuscular mycorrhizal fungi. Collectively, our findings highlight the ecological significance of Tetracladium in temperate forest soils and emphasize the importance of site-specific factors and microbial interactions in shaping their distribution patterns and ecological dynamics.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575008","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