Environmental Microbiology Reports最新文献_第3页

When Two Species Meet: A Potential Beetle-Yeast Facultative Mutualism 当两个物种相遇：一种潜在的甲虫-酵母兼性共生

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-14 DOI: 10.1111/1758-2229.70157

Rodolfo Bizarria Jr., Tatiane de Castro Pietrobon, Pepijn W. Kooij, Andre Rodrigues

{"title":"When Two Species Meet: A Potential Beetle-Yeast Facultative Mutualism","authors":"Rodolfo Bizarria Jr., Tatiane de Castro Pietrobon, Pepijn W. Kooij, Andre Rodrigues","doi":"10.1111/1758-2229.70157","DOIUrl":"https://doi.org/10.1111/1758-2229.70157","url":null,"abstract":"Facultative mutualisms, such as some insect-yeast interactions, can be established between partners that only interact in certain stages of their life cycles. While exploring yeasts associated with Brazilian beetles, we found a particular Cyberlindnera yeast associated with Spermophthorus apuleiae. This yeast was found within the beetles' galleries, which are excavated in fruits of Libidibia ferrea, a native Brazilian tree. We isolated a total of 15 yeast and yeast-like species associated with the fruits and beetles, mostly from the orders Phaffomycetales and Serinales, and explored their role in yeast-beetle interactions. Cyberlindnera is the most recurrent yeast, found in 90% of the fruit samples infested with beetles and representing 79% of the total isolates. Results from bioassays support the interaction between Cyberlindnera and Spermophthorus apuleiae. We hypothesise that reciprocal benefits may underlie this association: beetle gallery excavation boosts the density of Cyberlindnera in fruits, while the yeast produces attractive volatiles to beetles. These volatiles are usually associated with signalling towards sugar resources that enhance dispersal, an idea that warrants further exploration. We consider the Cyberlindnera-beetle association a potential model for studying the ecology and evolution of non-obligate (facultative) mutualisms.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70157","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Freshwater Discharge and Salinity Drive Taxonomic and Functional Turnover of Microbial Communities in a Turbid Macrotidal Estuary 淡水流量和盐度驱动浑浊大潮河口微生物群落的分类和功能更替

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-14 DOI: 10.1111/1758-2229.70135

Luz Amadei Martínez, Koen Sabbe, Sofie D'hondt, Renaat Dasseville, Ilse Daveloose, Tine Verstraete, Peter Chaerle, Natacha Brion, Tom Maris, Patrick Meire, Wim Vyverman

{"title":"Freshwater Discharge and Salinity Drive Taxonomic and Functional Turnover of Microbial Communities in a Turbid Macrotidal Estuary","authors":"Luz Amadei Martínez, Koen Sabbe, Sofie D'hondt, Renaat Dasseville, Ilse Daveloose, Tine Verstraete, Peter Chaerle, Natacha Brion, Tom Maris, Patrick Meire, Wim Vyverman","doi":"10.1111/1758-2229.70135","DOIUrl":"https://doi.org/10.1111/1758-2229.70135","url":null,"abstract":"The drivers of spatiotemporal changes in microorganism's functional community structure remain poorly understood. Using DNA-amplicon sequencing we studied the spatiotemporal dynamics of bacterial and eukaryotic microbial communities in the freshwater and brackish tidal reaches of the Schelde estuary (Belgium) from 2018 to 2021. Our analyses revealed pronounced seasonal and longitudinal turnover in autotrophic and heterotrophic microbiota, mainly driven by changes in freshwater discharge, which modulate the salinity and turbidity gradient. Higher discharge in early spring led to a more uniform community composition across the estuary, with higher relative abundances of heterotrophic eukaryotes. As discharge decreased in late spring, the salinity gradient and associated turnover in community composition became more accentuated, with Actinomycetota and diatoms dominating the upstream reaches, and ciliates, fungi and marine bacteria being relatively more important downstream from the maximum turbidity zone (MTZ). This study revealed fine-scale turnover in (semi)cryptic phytoplankton taxa and spatiotemporal changes in parasitism linked to bloom termination. High discharge due to exceptionally heavy rainfall resulted in the disruption of the phytoplankton bloom, more downstream spreading of freshwater species and a decline in brackish and polyhaline species. These results emphasise the intricate link between hydrodynamics and microbial community dynamics and ecological functions in estuarine ecosystems.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70135","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Seasonal Transition in the Dominance of Photoautotrophic and Heterotrophic Protists in the Photic Layer of a Subtropical Marine Ecosystem 亚热带海洋生态系统光层中光自养和异养原生生物优势的季节变化

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-14 DOI: 10.1111/1758-2229.70126

Yoav Avrahami, Raffaele Siano, Maxim Rubin-Blum, Gil Koplovitz, Nicolas Henry, Colomban de Vargas, Miguel J. Frada

{"title":"Seasonal Transition in the Dominance of Photoautotrophic and Heterotrophic Protists in the Photic Layer of a Subtropical Marine Ecosystem","authors":"Yoav Avrahami, Raffaele Siano, Maxim Rubin-Blum, Gil Koplovitz, Nicolas Henry, Colomban de Vargas, Miguel J. Frada","doi":"10.1111/1758-2229.70126","DOIUrl":"https://doi.org/10.1111/1758-2229.70126","url":null,"abstract":"Protists are major functional players in the oceans. Time-resolved protist diversity and succession patterns remain poorly described in subtropical ecosystems, limiting current understanding of food web dynamics and responses to environmental changes in these major world-ocean regions. We used amplicon sequencing data and trait-based annotation to examine the seasonality of planktonic protists in the subtropical Gulf of Aqaba (Red Sea). Temperature and nutrients were the major drivers of succession. We detected marked seasonal shifts in protists. Heterotrophs, including diverse parasitic functional groups, dominated the warm, stratified oligotrophic period spanning spring and summer. By contrast, nutrient influx during deep convective mixing in winter triggered a shift to photoautotrophic communities dominated by a few genera of chlorophytes. Deeper winter mixing resulted in larger blooms at the onset of stratification dominated by diatoms, relative to chlorophytes that prevailed during shallower blooms. This result illustrates the impact of mixing depth on bloom formation and composition. Comparisons with oceanwide rDNA datasets indicate that the oligotrophic protist assemblages from the Gulf resemble those from warm, open oceans. This work provides a detailed assessment of the seasonal switch in dominant trophic functions in protists in phase with nutrient levels in a subtropical planktonic ecosystem.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Five-Year Time Series Reveals Short-Term Blooms of Planktonic Fungi in a Coastal Mediterranean Site 五年时间序列揭示了地中海沿海地区浮游真菌的短期繁殖

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-12 DOI: 10.1111/1758-2229.70154

Emile Laymand, Pierre E. Galand, François-Yves Bouget, Lucie Bittner, Fabien Joux

{"title":"Five-Year Time Series Reveals Short-Term Blooms of Planktonic Fungi in a Coastal Mediterranean Site","authors":"Emile Laymand, Pierre E. Galand, François-Yves Bouget, Lucie Bittner, Fabien Joux","doi":"10.1111/1758-2229.70154","DOIUrl":"https://doi.org/10.1111/1758-2229.70154","url":null,"abstract":"Fungi have gained recognition as key organisms within the pelagic marine food webs over the past few decades, with studies showing they constitute a significant proportion of eukaryotes in different marine ecosystems. However, how this proportion varies with time, what triggers fungal blooms, and which fungal clades are involved in those blooms are largely open questions. Here, we used a 5-year, high-frequency 18S V4 metabarcoding time series from a well-documented coastal site of the North West Mediterranean Sea to address these questions. This time series has one of the highest temporal resolutions (up to two samples a week) ever used to investigate marine fungal dynamics. We showed that the dynamics of the fungal relative abundance at this site are mainly chaotic, with short-term blooms dominated by 41 Amplicon Sequence Variants (ASVs), mainly assigned to Ascomycota. Most of these ASVs are not restricted to the Mediterranean Sea or the marine environment. We found weak links between biotic or abiotic parameters and the relative abundance of Fungi. Our study highlights the relevance of high-frequency time series to study marine fungal dynamics, as it lowers the risk of aliasing and spurious conclusions.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Five-Year Time Series Reveals Short-Term Blooms of Planktonic Fungi in a Coastal Mediterranean Site 五年时间序列揭示了地中海沿海地区浮游真菌的短期繁殖

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-12 DOI: 10.1111/1758-2229.70154

Emile Laymand, Pierre E. Galand, François-Yves Bouget, Lucie Bittner, Fabien Joux

{"title":"Five-Year Time Series Reveals Short-Term Blooms of Planktonic Fungi in a Coastal Mediterranean Site","authors":"Emile Laymand, Pierre E. Galand, François-Yves Bouget, Lucie Bittner, Fabien Joux","doi":"10.1111/1758-2229.70154","DOIUrl":"https://doi.org/10.1111/1758-2229.70154","url":null,"abstract":"Fungi have gained recognition as key organisms within the pelagic marine food webs over the past few decades, with studies showing they constitute a significant proportion of eukaryotes in different marine ecosystems. However, how this proportion varies with time, what triggers fungal blooms, and which fungal clades are involved in those blooms are largely open questions. Here, we used a 5-year, high-frequency 18S V4 metabarcoding time series from a well-documented coastal site of the North West Mediterranean Sea to address these questions. This time series has one of the highest temporal resolutions (up to two samples a week) ever used to investigate marine fungal dynamics. We showed that the dynamics of the fungal relative abundance at this site are mainly chaotic, with short-term blooms dominated by 41 Amplicon Sequence Variants (ASVs), mainly assigned to Ascomycota. Most of these ASVs are not restricted to the Mediterranean Sea or the marine environment. We found weak links between biotic or abiotic parameters and the relative abundance of Fungi. Our study highlights the relevance of high-frequency time series to study marine fungal dynamics, as it lowers the risk of aliasing and spurious conclusions.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Potential Antifungal Effects of Calcium Oxide/Zinc Oxide Nanosuspension on Mycelial Growth of Neoscytalidium dimidiatum (Ascomycota, Botryosphaeriaceae) Associated With Pistachio Dieback 氧化钙/氧化锌纳米混悬液对开心果枯死菌新隐孢子菌菌丝生长的潜在抑菌作用

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-10 DOI: 10.1111/1758-2229.70144

Seyedeh Fatemeh Shojaei, Hamid Mohammadi, Nazanin Foroutan, Saleh Panahandeh

引用次数: 0

Potential Antifungal Effects of Calcium Oxide/Zinc Oxide Nanosuspension on Mycelial Growth of Neoscytalidium dimidiatum (Ascomycota, Botryosphaeriaceae) Associated With Pistachio Dieback 氧化钙/氧化锌纳米混悬液对开心果枯死菌新隐孢子菌菌丝生长的潜在抑菌作用

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-10 DOI: 10.1111/1758-2229.70144

Seyedeh Fatemeh Shojaei, Hamid Mohammadi, Nazanin Foroutan, Saleh Panahandeh

引用次数: 0

Enhancing Wastewater Treatment Efficiency: Utilising Saponification Products for Sustainable Cleaning Processes 提高废水处理效率：利用皂化产物进行可持续的清洁过程

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-09 DOI: 10.1111/1758-2229.70124

Dani Dordević, Monika Vítězová, Tomáš Vítěz, Simona Dordevic, Monika Hamšíková, Ivan Kushkevych

{"title":"Enhancing Wastewater Treatment Efficiency: Utilising Saponification Products for Sustainable Cleaning Processes","authors":"Dani Dordević, Monika Vítězová, Tomáš Vítěz, Simona Dordevic, Monika Hamšíková, Ivan Kushkevych","doi":"10.1111/1758-2229.70124","DOIUrl":"https://doi.org/10.1111/1758-2229.70124","url":null,"abstract":"This study explores the interaction of saponification products with microbial communities in aerobic and anaerobic sewage sludge from wastewater treatment plants (WWTPs). It focuses on the reutilisation of waste cooking oils into soap and evaluates the biodegradation of these products using microbial respiration activity and biological oxygen demand (BOD) as indicators. Results demonstrate that soaps degrade effectively under both aerobic and anaerobic conditions, with anaerobic degradation contributing to methane production—a valuable biofuel. Importantly, no toxic effects on sludge microorganisms were observed. The research highlights that these saponification products can be fully integrated into the wastewater treatment process without adverse effects on microbial dynamics. Moreover, the economic analysis reveals that biosurfactants derived from used oils can be produced at a cost of approximately 0.12–3.0 EUR/kg, significantly lower than the 1–20 EUR/kg typically spent on chemical coagulants or synthetic surfactants used in WWTPs. These findings support the feasibility of repurposing waste oils into environmentally friendly, cost-effective treatment additives, enhancing microbial performance and promoting circular economy practices in wastewater management.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Diversity in Deep-Sea Sediments of the North Atlantic Ocean and Their Biosynthesis of Secondary Metabolites 北大西洋深海沉积物中细菌多样性及其次生代谢产物的生物合成

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-09 DOI: 10.1111/1758-2229.70092

Pietro Marchese, Joe Bracegirdle, Ryan Young, Emanuele Ferrari, Laura Garzoli, J. Mary Murphy, Maria Tuohy, A. Louise Allcock, Bill J. Baker

{"title":"Bacterial Diversity in Deep-Sea Sediments of the North Atlantic Ocean and Their Biosynthesis of Secondary Metabolites","authors":"Pietro Marchese, Joe Bracegirdle, Ryan Young, Emanuele Ferrari, Laura Garzoli, J. Mary Murphy, Maria Tuohy, A. Louise Allcock, Bill J. Baker","doi":"10.1111/1758-2229.70092","DOIUrl":"https://doi.org/10.1111/1758-2229.70092","url":null,"abstract":"Oceanic bathyal benthos harbours extremotolerant microbial species living with low nutrient availability, high hydrostatic pressure, and low temperature. Within their community, bacteria can secrete signalling molecules to gain a competitive advantage over space and nutrients, often representing bioactive compounds with relevant biotechnological potential. In this study, we investigate the species diversity of culturable bacteria associated with sediments sampled at the deepest margin of the European Western Continental Shelf. Furthermore, we explore their biosynthesis of known and new bioactive molecules. We isolated 144 bacterial strains belonging to 60 different taxa, including potentially new species, two species never recorded in the marine environment, and 15 new to the deep-sea. Investigation of the bacteria ability to synthesise ecologically relevant molecules was performed through genetic screening and metabolomics. Our results highlight a high rate of antibiotic-producing bacteria as well as the biosynthesis of potentially quorum-sensing compounds. Actinobacteria displayed the highest potential to biosynthesise bioactive molecules such as polyketides and non-ribosomal peptides, with a high rate of isolates carrying biosynthetic genes as well as the highest number of molecules detected by mass spectrometry. In this study, the deep-sea demonstrates a valuable source of unknown microbial and chemical diversity, supporting initiatives aimed at its protection from anthropogenic disturbance.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Enhancing Wastewater Treatment Efficiency: Utilising Saponification Products for Sustainable Cleaning Processes 提高废水处理效率：利用皂化产物进行可持续的清洁过程

IF 3.6 4区生物学

Environmental Microbiology Reports Pub Date : 2025-07-09 DOI: 10.1111/1758-2229.70124

Dani Dordević, Monika Vítězová, Tomáš Vítěz, Simona Dordevic, Monika Hamšíková, Ivan Kushkevych

{"title":"Enhancing Wastewater Treatment Efficiency: Utilising Saponification Products for Sustainable Cleaning Processes","authors":"Dani Dordević, Monika Vítězová, Tomáš Vítěz, Simona Dordevic, Monika Hamšíková, Ivan Kushkevych","doi":"10.1111/1758-2229.70124","DOIUrl":"https://doi.org/10.1111/1758-2229.70124","url":null,"abstract":"This study explores the interaction of saponification products with microbial communities in aerobic and anaerobic sewage sludge from wastewater treatment plants (WWTPs). It focuses on the reutilisation of waste cooking oils into soap and evaluates the biodegradation of these products using microbial respiration activity and biological oxygen demand (BOD) as indicators. Results demonstrate that soaps degrade effectively under both aerobic and anaerobic conditions, with anaerobic degradation contributing to methane production—a valuable biofuel. Importantly, no toxic effects on sludge microorganisms were observed. The research highlights that these saponification products can be fully integrated into the wastewater treatment process without adverse effects on microbial dynamics. Moreover, the economic analysis reveals that biosurfactants derived from used oils can be produced at a cost of approximately 0.12–3.0 EUR/kg, significantly lower than the 1–20 EUR/kg typically spent on chemical coagulants or synthetic surfactants used in WWTPs. These findings support the feasibility of repurposing waste oils into environmentally friendly, cost-effective treatment additives, enhancing microbial performance and promoting circular economy practices in wastewater management.","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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