Environmental microbiology最新文献

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 5.1 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":"https://doi.org/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":"14 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","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":"","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

Production and utilization of pseudocobalamin in marine Synechococcus cultures and communities 海洋 Synechococcus 培养物和群落中假钴胺素的生产和利用

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-10-24 DOI: 10.1111/1462-2920.16701

Catherine C. Bannon, Maria A. Soto, Elden Rowland, Nan Chen, Anna Gleason, Emmanuel Devred, Julie LaRoche, Erin M. Bertrand

{"title":"Production and utilization of pseudocobalamin in marine Synechococcus cultures and communities","authors":"Catherine C. Bannon, Maria A. Soto, Elden Rowland, Nan Chen, Anna Gleason, Emmanuel Devred, Julie LaRoche, Erin M. Bertrand","doi":"10.1111/1462-2920.16701","DOIUrl":"10.1111/1462-2920.16701","url":null,"abstract":"Cobalamin influences marine microbial communities because an exogenous source is required by most eukaryotic phytoplankton, and demand can exceed supply. Pseudocobalamin is a cobalamin analogue produced and used by most cyanobacteria but is not directly available to eukaryotic phytoplankton. Some microbes can remodel pseudocobalamin into cobalamin, but a scarcity of pseudocobalamin measurements impedes our ability to evaluate its importance for marine cobalamin production. Here, we perform simultaneous measurements of pseudocobalamin and methionine synthase (MetH), the key protein that uses it as a co-factor, in Synechococcus cultures and communities. In Synechococcus sp. WH8102, pseudocobalamin quota decreases in low temperature (17°C) and low nitrogen to phosphorus ratio, while MetH did not. Pseudocobalamin and MetH quotas were influenced by culture methods and growth phase. Despite the variability present in cultures, we found a comparably consistent quota of 300 ± 100 pseudocobalamin molecules per cyanobacterial cell in the Northwest Atlantic Ocean, suggesting that cyanobacterial cell counts may be sufficient to estimate pseudocobalamin inventories in this region. This work offers insights into cellular pseudocobalamin metabolism, environmental and physiological conditions that may influence it, and provides environmental measurements to further our understanding of when and how pseudocobalamin can influence marine microbial communities.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.16701","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142489470","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

Novel oil-associated bacteria in Arctic seawater exposed to different nutrient biostimulation regimes 北极海水中暴露于不同营养生物刺激机制的新型石油相关细菌

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-10-16 DOI: 10.1111/1462-2920.16688

Francisco D. Davila Aleman, María A. Bautista, Janine McCalder, Kaiden Jobin, Sean M. C. Murphy, Brent Else, Casey R. J. Hubert

{"title":"Novel oil-associated bacteria in Arctic seawater exposed to different nutrient biostimulation regimes","authors":"Francisco D. Davila Aleman, María A. Bautista, Janine McCalder, Kaiden Jobin, Sean M. C. Murphy, Brent Else, Casey R. J. Hubert","doi":"10.1111/1462-2920.16688","DOIUrl":"10.1111/1462-2920.16688","url":null,"abstract":"The Arctic Ocean is an oligotrophic ecosystem facing escalating threats of oil spills as ship traffic increases owing to climate change-induced sea ice retreat. Biostimulation is an oil spill mitigation strategy that involves introducing bioavailable nutrients to enhance crude oil biodegradation by endemic oil-degrading microbes. For bioremediation to offer a viable response for future oil spill mitigation in extreme Arctic conditions, a better understanding of the effects of nutrient addition on Arctic marine microorganisms is needed. Controlled experiments tracking microbial populations revealed a significant decline in community diversity along with changes in microbial community composition. Notably, differential abundance analysis highlighted the significant enrichment of the unexpected genera Lacinutrix, Halarcobacter and Candidatus Pseudothioglobus. These groups are not normally associated with hydrocarbon biodegradation, despite closer inspection of genomes from closely related isolates confirming the potential for hydrocarbon metabolism. Co-occurrence analysis further revealed significant associations between these genera and well-known hydrocarbon-degrading bacteria, suggesting potential synergistic interactions during oil biodegradation. While these findings broaden our understanding of how biostimulation promotes enrichment of endemic hydrocarbon-degrading genera, further research is needed to fully assess the suitability of nutrient addition as a stand-alone oil spill mitigation strategy in this sensitive and remote polar marine ecosystem.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.16688","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444189","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

Global risk dynamics of Borrelia miyamotoi in the context of climate change 气候变化背景下宫本氏包虫病的全球风险动态

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-10-16 DOI: 10.1111/1462-2920.70000

Tian Tang, Hong-Han Ge, Tian Ma, Meng-meng Hao, Shuai Chen, Chen-Long Lv, Yun-Bo Qiu, Yan-He Wang, Yao Tian, Jin-Jin Chen, Shuai Yuan, Qian Wang, Dong Jiang, Fang-Yu Ding, Wei Liu, Li-Qun Fang

{"title":"Global risk dynamics of Borrelia miyamotoi in the context of climate change","authors":"Tian Tang, Hong-Han Ge, Tian Ma, Meng-meng Hao, Shuai Chen, Chen-Long Lv, Yun-Bo Qiu, Yan-He Wang, Yao Tian, Jin-Jin Chen, Shuai Yuan, Qian Wang, Dong Jiang, Fang-Yu Ding, Wei Liu, Li-Qun Fang","doi":"10.1111/1462-2920.70000","DOIUrl":"10.1111/1462-2920.70000","url":null,"abstract":"The impact of Borrelia miyamotoi on human health, facilitated by the expanding geographical distribution and increasing population of Ixodes ticks, remains obscure in the context of global climate change. We employed multiple models to evaluate the effect of global climate change on the risk of B. miyamotoi worldwide across various scenarios. The habitat suitability index of four primary vector tick species for B. miyamotoi, including Ixodes persulcatus, Ixodes ricinus, Ixodes pacificus and Ixodes scapularis, was projected using a boosted regression tree model, considering multiple shared socio-economic pathway scenarios over various time periods. The modelling analysis reveals that, apart from I. scapularis, future global warming will result in a northward shift in the other three vector tick species and a gradual reduction in suitable habitats. Random forest models indicate consistent changes in B. miyamotoi and its primary tick species, with potential risk areas shrinking and shifting northward, particularly in the eastern USA, northeastern and northern Europe and northeast Asia. These findings highlight the urgent need for enhanced active surveillance of B. miyamotoi infection in primary vector tick species across projected potential risk areas. The effect of climate change on B. miyamotoi distribution might have significant implications for public health decision-making regarding tick-borne pathogens.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.70000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444190","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

Cable bacteria colonise new sediment environments through water column dispersal 缆索细菌通过水柱传播定殖新的沉积物环境

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-10-16 DOI: 10.1111/1462-2920.16694

Jesper R. van Dijk, Jeanine S. Geelhoed, Philip Ley, Silvia Hidalgo-Martinez, Miguel Portillo-Estrada, Erik Verbruggen, Filip J. R. Meysman

{"title":"Cable bacteria colonise new sediment environments through water column dispersal","authors":"Jesper R. van Dijk, Jeanine S. Geelhoed, Philip Ley, Silvia Hidalgo-Martinez, Miguel Portillo-Estrada, Erik Verbruggen, Filip J. R. Meysman","doi":"10.1111/1462-2920.16694","DOIUrl":"10.1111/1462-2920.16694","url":null,"abstract":"Cable bacteria exhibit a unique metabolism involving long-distance electron transport, significantly impacting elemental cycling in various sediments. These long filamentous bacteria are distributed circumglobally, suggesting an effective mode of dispersal. However, oxygen strongly inhibits their activity, posing a challenge to their dispersal through the water column. We investigated the effective dispersal of marine cable bacteria in a compartmentalised microcosm experiment. Cable bacteria were grown in natural ‘source’ sediment, and their metabolic activity was recorded in autoclaved ‘destination’ cores, which were only accessible through oxygenated seawater. Colonisation occurred over weeks, and destination cores contained only one cable bacterium strain. Filament ‘snippets’ (fragments with a median size of ~15 cells) accumulated in the microcosm water, with about 30% of snippets attached to sediment particles. Snippet release was also observed in situ in a salt marsh creek. This provides a model for the dispersal of cable bacteria through oxygenated water: snippets are formed by filament breakage in the sediment, released into the overlying water and transported with sediment particles that likely offer protection. These insights are informative for broader theories on microbial community assembly and prokaryotic biogeography in marine sediments.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.16694","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444188","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

Specialization of Alcanivorax species in colonizing diverse plastics Alcanivorax 物种在不同塑料中的定殖特化

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-10-14 DOI: 10.1111/1462-2920.16698

Valérie Mattelin, Astrid Rombouts, Josefien Van Landuyt, Alberto Scoma, Nico Boon

{"title":"Specialization of Alcanivorax species in colonizing diverse plastics","authors":"Valérie Mattelin, Astrid Rombouts, Josefien Van Landuyt, Alberto Scoma, Nico Boon","doi":"10.1111/1462-2920.16698","DOIUrl":"https://doi.org/10.1111/1462-2920.16698","url":null,"abstract":"Recently, there has been increased attention to hydrocarbonoclastic bacteria in the plastisphere. One particular genus, Alcanivorax, is reported in the biodegradation of several polymers in the literature. In this study, we further explored the role of Alcanivorax in the early colonization of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH), nylon 6/69, and a novel plastic B4PF01. Starting from enrichments of a one-year experiment with a maximum relative abundance of 58.8% of Alcanivorax, two parallel experiments were set up. One experiment followed growth and activity during the first 21 days of plastic incubations, and the other followed the same parameters on the different material fractions of the plastics, such as leachables and pure polymer. For all plastic types, the highest microbial growth was associated with the total plastics compared to the other material fractions. A relative abundance of 62.7% of Alcanivorax in the nylon 6/69-enriched community was observed. This, combined with data on activity, suggests that nylon 6/69 is potentially degraded by this genus. Two isolates were obtained, closely related to A. borkumensis SK2 and Alcanivorax sp. DG881. The activity and growth of the isolates as axenic cultures resemble their abundance in the community. In conclusion, this study contributes to the knowledge of the role of Alcanivorax in plastic-enriched communities.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.16698","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435751","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

Distinct microbial communities supported by iron oxidation 铁氧化作用支持的独特微生物群落。

IF 4.3 2区生物学

Environmental microbiology Pub Date : 2024-10-10 DOI: 10.1111/1462-2920.16706

Kateřina Burkartová, Antonín Hlaváček, Sergej Skoblia, Lukáš Falteisek

{"title":"Distinct microbial communities supported by iron oxidation","authors":"Kateřina Burkartová, Antonín Hlaváček, Sergej Skoblia, Lukáš Falteisek","doi":"10.1111/1462-2920.16706","DOIUrl":"10.1111/1462-2920.16706","url":null,"abstract":"Microbial biostalactites and streamers commonly grow at iron seepages in abandoned mines worldwide. This study addresses the diversity and composition of these simple prokaryotic communities, which thrive in pH ranges from 2.4 to 6.6 across six different mines. Our analysis of 85 communities reveals that a pH of approximately 3.2 is a critical threshold where alpha and beta diversity change discretely. Below this pH, the average number of ASVs per sample is 2.91 times lower than above this boundary. Autotrophs, heterotrophs, and symbionts of eukaryotes originate from nearly non-overlapping species pools in the two habitat types that differ only in pH. Communities below pH 3.2 further divide into two distinct groups, differing in diversity, taxonomic, and functional composition. Both types of communities coexist within the same stalactites, likely corresponding to zones where the capillary structure of the stalactite is either perfused or clogged. These findings indicate that microbial community structure can be significantly influenced by the intricate spatial organization of the ecosystem, rather than solely by measurable environmental parameters.","PeriodicalId":11898,"journal":{"name":"Environmental microbiology","volume":"26 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1462-2920.16706","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142399746","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