AIMS Microbiology最新文献_第2页

Immune evasion by Staphylococcus haemolyticus: Attenuated NET-associated responses and resistance to NET-mediated killing. 溶血葡萄球菌的免疫逃避：减弱的net相关反应和对net介导的杀伤的抗性

IF 5.4

AIMS Microbiology Pub Date : 2026-07-27 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026021

Mohamed Ahmed, Marwa M Khalifa

{"title":"Immune evasion by Staphylococcus haemolyticus: Attenuated NET-associated responses and resistance to NET-mediated killing.","authors":"Mohamed Ahmed, Marwa M Khalifa","doi":"10.3934/microbiol.2026021","DOIUrl":"https://doi.org/10.3934/microbiol.2026021","url":null,"abstract":"Neutrophil extracellular traps (NETs) contribute to innate immune defense by trapping and exposing microorganisms to DNA-associated antimicrobial proteins. However, some pathogens can tolerate NET-associated antimicrobial activity and persist within the host. Staphylococcus haemolyticus is an emerging multidrug-resistant coagulase-negative staphylococcal pathogen associated with healthcare-related infections, but its interaction with neutrophil-mediated defenses remains poorly understood. This study investigated whether a multidrug-resistant clinical S. haemolyticus isolate modulates neutrophil antimicrobial activity and NET-associated responses, using a clinical Staphylococcus aureus isolate as a comparator. Extracellular DNA release and NET-associated structures were assessed by fluorescence microscopy, scanning electron microscopy, fluorometric DNA quantification, microscopic enumeration, and MPO-DNA complex ELISA. The tested S. haemolyticus isolate induced extracellular DNA release and MPO-DNA complex formation; however, these responses were lower than those induced by PMA and were attenuated compared with the S. aureus comparator. S. haemolyticus also showed reduced susceptibility to neutrophil-mediated killing and greater resistance to NET-mediated killing than S. aureus. NE and MPO mRNA expression was not significantly altered following bacterial exposure. Collectively, these findings provide initial evidence that a clinical S. haemolyticus isolate can induce attenuated NET-associated responses while resisting NET-mediated antimicrobial activity, highlighting a potential immune-evasion mechanism in this emerging opportunistic pathogen.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 3","pages":"486-507"},"PeriodicalIF":5.4,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13652749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of lactate metabolism in shaping intestinal microbiota and health. 乳酸代谢在肠道菌群形成和健康中的作用。

IF 5.4

AIMS Microbiology Pub Date : 2026-07-23 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026020

Carlos Sabater, Xenia Vázquez, Sylvia H Duncan

{"title":"The role of lactate metabolism in shaping intestinal microbiota and health.","authors":"Carlos Sabater, Xenia Vázquez, Sylvia H Duncan","doi":"10.3934/microbiol.2026020","DOIUrl":"https://doi.org/10.3934/microbiol.2026020","url":null,"abstract":"Lactate, particularly the D-isomer, which is produced exclusively by microbial fermentation, is usually low or undetectable in the healthy colon but can accumulate when there is a microbial imbalance, contributing to low pH and inflammation. Intestinal lactate-utilizing bacteria, such as Anaerobutyricum soehngenii, Anaerostipes species, and Coprococcus catus, convert lactate to short-chain fatty acids, including butyrate, potentially important for health. Here, we mined genomes of lactate utilizers for genes involved in propionate formation and conducted metabolic network modeling to investigate the cross-feeding mechanism. Genomes were also mined for antibiotic resistance genes, important when considering strains for biotherapeutics. Metabolic models were computed to elucidate the potential cross-feeding mechanisms between lactate utilizers in the human gut. Bioinformatics analysis revealed that the butyryl CoA:acetate CoA-transferase route was the dominant pathway for butyrate formation. The propanediol utilization compartment was annotated in A. halli, A. soehngenii, Eubacterium limosum, and C. catus. Of the genomes of key lactate utilizers assessed for antibiotic resistance genes, several possessed genes for multidrug resistance; however, other strains of Anaerostipes, C. catus, and Megasphaera elsdenii exhibited no antibiotic resistance genes. Metabolic modeling revealed that lactate-utilizing strains, including Anaerotignum, Eubacterium, and Anaerostipes, are key symbionts in maximizing the metabolic capabilities of the gut microbial community. Clinical interest in lactate-utilizers as next-generation probiotics is developing, and these data underscore the exciting therapeutic potential of targeting lactate metabolism to restore microbial and metabolic balance, in addition to potentially mitigating inflammatory diseases.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 3","pages":"472-485"},"PeriodicalIF":5.4,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13652740/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149165230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microbiological aspects of microbial electrolysis cells: Isolation, screening, and electron transfer mechanisms. 微生物电解细胞的微生物学方面：分离、筛选和电子传递机制。

IF 5.4

AIMS Microbiology Pub Date : 2026-07-07 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026019

Twisampati Das, Bhawna Kandwal, Riddhi Chakraborty, Harsh Jadhav, Ayesha Mulla, Rajesh Kanawade, Suhas S Shetye, Ibrahim M Banat, Surekha K Satpute

{"title":"Microbiological aspects of microbial electrolysis cells: Isolation, screening, and electron transfer mechanisms.","authors":"Twisampati Das, Bhawna Kandwal, Riddhi Chakraborty, Harsh Jadhav, Ayesha Mulla, Rajesh Kanawade, Suhas S Shetye, Ibrahim M Banat, Surekha K Satpute","doi":"10.3934/microbiol.2026019","DOIUrl":"https://doi.org/10.3934/microbiol.2026019","url":null,"abstract":"Biohydrogen is a leading candidate in the global shift toward renewable energy, offering a sustainable solution to reduce reliance on fossil fuels. This review underscores the use of microbial electrolysis cells (MECs) as a viable strategy to address increasing energy demands. In MECs, extracellular electron transfer (EET) is a vital mechanism that enables microorganisms to channel electrons (e⁻) from organic donors to external acceptors. Exo-electrogenic bacteria, viz., Geobacter, Shewanella, Pseudomonas, Nitrospira, and Desulfovibrio, are frequently reported for their ability to utilize Iron: Fe (III) and Manganese: Mn (III/IV) as electron acceptors, which can be replaced with electrodes to drive proton reduction and hydrogen (H2) generation. The use of renewable substrates in fermentation processes further strengthens the commercial feasibility of biohydrogen production, while the molecular traits of microbes provide insights into optimizing H2 production. Despite encouraging laboratory-scale demonstrations, challenges persist due to variability in recovery methods and the limited microbial diversity explored. Expanding the repertoire of exo-electrogens and refining MEC configurations are critical to achieving higher yields. Overall, biohydrogen stands out as a clean, eco-friendly energy resource, with microbial electrolysis offering a sustainable energy technology.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 3","pages":"439-471"},"PeriodicalIF":5.4,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13652747/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sanitization of food-grade materials: Combined effect of an enzymatic product and two chemical sanitizers on Listeria monocytogenes biofilms. 食品级材料的卫生处理：一种酶产物和两种化学消毒剂对单核增生李斯特菌生物膜的联合作用。

IF 5.4

AIMS Microbiology Pub Date : 2026-06-30 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026018

Serena Iannone, Francesco Blasi, Nicoletta Scaramuzza, Barbara Franceschini, Massimo Cigarini, Elettra Berni

{"title":"Sanitization of food-grade materials: Combined effect of an enzymatic product and two chemical sanitizers on Listeria monocytogenes biofilms.","authors":"Serena Iannone, Francesco Blasi, Nicoletta Scaramuzza, Barbara Franceschini, Massimo Cigarini, Elettra Berni","doi":"10.3934/microbiol.2026018","DOIUrl":"10.3934/microbiol.2026018","url":null,"abstract":"In industrial practice, different food-grade materials could be subjected to contamination by microorganisms that are responsible for the spoilage of foods. The chemical sanitizers used to inactivate microbes on the food-grade surfaces have proved effective on vegetative cells, but may not be successful on biofilms, thus encouraging food companies to search alternative ways to eradicate these microbes. For this reason, in this work, two commercially available chemicals based on quaternary ammonium salts (QAC) and alcohols were tested alone or in combination with an enzymatic product against seven-day-old biofilms of three Listeria monocytogenes strains on stainless steel (SS) or poly-tetra-fluoro-ethylene (PTFE). When the sanitizers were applied without any pre-treatment, with the QAC, no survivors were detected after 10 minutes at a concentration of 0.75-1.0% on SS; on PTFE, it was necessary to increase the concentration to 1.0% to obtain a total inactivation of the sessile cells for all the tested strains. The use of the alcoholic product enabled us to obtain total inactivation of the sessile cells at a concentration of 50% for contact times greater than 2.5-5 minutes on SS; on the contrary, on PTFE, it was necessary to use the undiluted sanitizer for 10 minutes for all the tested strains. When the enzymatic solution was used as a pre-treatment, the achieved logarithmic reductions were significantly higher than the ones obtained when using the sanitizing products alone: In half of the cases, this combination enabled us to obtain a total inactivation on the biofilm-forming cells.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 2","pages":"422-438"},"PeriodicalIF":5.4,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13370277/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Yogurt as a modulator of gut and beyond gut: Mechanisms, health effects, and clinical translation. 酸奶作为肠道和肠道以外的调节剂：机制，健康影响和临床翻译。

IF 5.4

AIMS Microbiology Pub Date : 2026-06-26 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026017

Daiyu Yang, Hongwen Zhao, Kun He, Wangyang Chen, Hemiao Xu, Shuai Li, Qiming Xiao, Jinshui Yang, Dong Wu

{"title":"Yogurt as a modulator of gut and beyond gut: Mechanisms, health effects, and clinical translation.","authors":"Daiyu Yang, Hongwen Zhao, Kun He, Wangyang Chen, Hemiao Xu, Shuai Li, Qiming Xiao, Jinshui Yang, Dong Wu","doi":"10.3934/microbiol.2026017","DOIUrl":"10.3934/microbiol.2026017","url":null,"abstract":"Yogurt, a fermented dairy food, has been increasingly recognized for its potential to modulate gut microbiota and promote host health. Accumulating evidence suggests that yogurt consumption influences gut microbial composition, diversity, and functional activity. In this narrative review, we synthesized the findings on yogurt-related effects on the gut microbiota, intestinal barrier, microbial metabolites, immune responses, and selected extra-intestinal outcomes. We distinguished traditional yogurt, probiotic yogurt, synbiotic yogurt, fortified yogurt, and non-dairy or regional yogurt-like fermented products, and then organized proposed mechanisms into a hierarchical framework that separated direct yogurt-derived inputs, including starter cultures, added probiotic strains, fermentation-derived compounds, and dairy matrix components, from resident microbiota-mediated secondary metabolites and host downstream responses. Importantly, limitations and controversies, such as variability in yogurt formulations, strain-specific effects, and inter-individual responses, were critically evaluated. Finally, we highlighted future research directions that emphasize standardized study designs, defined endpoints, long-term randomized controlled trials, and integrative multi-omics approaches to support the development of personalized dietary strategies. Together, this review provides a structured framework for understanding the complex interactions between yogurt, gut microbiota, and host physiology, while outlining key steps needed to translate evidence into actionable nutritional recommendations.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 2","pages":"393-421"},"PeriodicalIF":5.4,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13370263/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elevation shapes the seed endophytic bacteria richness and composition of Taraxacum officinale. 海拔高低影响蒲公英种子内生细菌的丰富度和组成。

IF 5.4

AIMS Microbiology Pub Date : 2026-06-24 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026016

Romy Moukarzel, Cristian-Andrei Costan, Philip E Hulme

{"title":"Elevation shapes the seed endophytic bacteria richness and composition of Taraxacum officinale.","authors":"Romy Moukarzel, Cristian-Andrei Costan, Philip E Hulme","doi":"10.3934/microbiol.2026016","DOIUrl":"10.3934/microbiol.2026016","url":null,"abstract":"Taraxacum officinale, a widely invasive plant species in New Zealand, thrives across environments, yet little is known about the seed endophytic microbial communities contributing to its adaptability. In this study, we characterized the bacterial community within T. officinale seeds across an elevation gradient of 10 to 720 meters above sea level. Using PCR-DGGE fingerprinting and 16S rRNA gene sequencing, we characterized bacterial community structures and assessed variations across sites. Bacterial richness declined significantly with increasing elevation, accompanied by distinct shifts in community composition. Non-metric multidimensional scaling revealed clear clustering of communities according to elevation, with higher elevation sites exhibiting more similar and less diverse microbiomes compared to lower elevation locations. A total of six dominant bacterial genera were identified: Pseudomonas, Streptomyces, Clavibacter, Xanthomonas, Stenotrophomonas, and Erwinia. These included core genera detected across sites and location-specific genera associated with particular elevations. These results suggested that elevation acts as an environmental filter shaping seed microbiome assembly, with potential implications for microbial transmission and plant adaptation. The functional consequences of these shifts for plant performance, adaptation, and invasion success remain unknown and require further investigation.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 2","pages":"377-392"},"PeriodicalIF":5.4,"publicationDate":"2026-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13370273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Silent bacteria: Intrinsic bioremediation potential in the sediments of Lake Faro (Messina, Italy). 沉默的细菌：内在的生物修复潜力法罗湖（墨西拿，意大利）的沉积物。

IF 5.4

AIMS Microbiology Pub Date : 2026-06-22 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026015

Alessia Lunetta, Simone Cappello, Salvatore Giacobbe, Gabriella Caruso, Sabrina Patania, Antonietta Specchiulli, Tommaso Scirocco, Monia Renzi, Antonella D'Amore, Maria Genovese

{"title":"Silent bacteria: Intrinsic bioremediation potential in the sediments of Lake Faro (Messina, Italy).","authors":"Alessia Lunetta, Simone Cappello, Salvatore Giacobbe, Gabriella Caruso, Sabrina Patania, Antonietta Specchiulli, Tommaso Scirocco, Monia Renzi, Antonella D'Amore, Maria Genovese","doi":"10.3934/microbiol.2026015","DOIUrl":"10.3934/microbiol.2026015","url":null,"abstract":"Lake sediments can act as reservoirs for contaminants and host microbial communities with potential roles in natural ecosystem functioning. This study explored the occurrence of hydrocarbon-degrading bacteria, including \"silent\" hydrocarbon-responsive populations detectable after selective enrichment, in interfacial sediments of Lake Faro, a brackish meromictic basin in Messina, Italy. Sediment samples collected from five stations were chemically characterized and incubated in microcosms enriched with tetradecane, phenanthrene, or crude oil as the sole carbon and energy source. Chemical analyses revealed that hydrocarbons HCs > 12 were below the quantification limit at all stations, while PAHs were detectable at low concentrations. After 80 days of enrichment, microbial abundance increased, especially in tetradecane and crude oil-amended microcosms, and hydrocarbon-degrading bacteria were selectively enriched. Overall, 25 bacterial isolates were obtained, of which 16 were identified by 16S rRNA gene sequencing and assigned to taxa with reported hydrocarbon-degrading potential, including Isoalcanivorax pacificus, Marinobacter hydrocarbonoclasticus, Pseudoalteromonas sp., Vibirio alginolyticus, and Stappia indica. Several strains showed emulsifying activity, with E24 values up to 60%. These findings suggest that Lake Faro sediments host a latent hydrocarbon-responsive bacterial fraction, with intrinsic bioremediation potential and ecological relevance for natural attenuation processes in transitional aquatic ecosystems.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 2","pages":"354-376"},"PeriodicalIF":5.4,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13370259/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fungal symbionts of marine organisms: The case of Cladosporium and its bioactive secondary metabolites. 海洋生物的真菌共生体：枝孢菌及其生物活性次生代谢物的案例。

IF 5.4

AIMS Microbiology Pub Date : 2026-06-08 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026014

Maria Michela Salvatore, Anna Andolfi, Rosario Nicoletti

{"title":"Fungal symbionts of marine organisms: The case of Cladosporium and its bioactive secondary metabolites.","authors":"Maria Michela Salvatore, Anna Andolfi, Rosario Nicoletti","doi":"10.3934/microbiol.2026014","DOIUrl":"10.3934/microbiol.2026014","url":null,"abstract":"Fungi in the genus Cladosporium (Dothideomycetes, Cladosporiaceae) are widespread in every kind of natural and anthropic terrestrial habitats, where they are reported to be involved in ecological interactions. The developments in marine mycology have demonstrated that, rather than being typically terrestrial, they are also common in the sea. In this manuscript, we examined the synthetic potential of Cladosporium strains recovered from marine organisms and the available information concerning bioactivities of their secondary metabolites. As many as 106 compounds have been identified as products of these fungi so far, belonging to several classes of natural compounds, such as benzopyrones, diketopiperazines, flavonoids, lactones, macrolides, naphthalenones, pyrones, steroids, tetramic acids, and xanthones; 29 of them were first identified from this biological material, representing a valuable source of chemodiversity, which deserves to be investigated in-depth for the related biological properties in view of possible biotechnological exploitation.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 2","pages":"321-353"},"PeriodicalIF":5.4,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13370274/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multidimensional interaction mechanisms and engineering applications of microalgae-fungal microorganism symbiotic systems. 微藻-真菌微生物共生系统的多维相互作用机制及工程应用。

IF 5.4

AIMS Microbiology Pub Date : 2026-05-25 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026013

Yong Zhang, Yang Shen, Yining Gu, Yuan Yao, Meihan Liu, Yike He, Qiuzhen Wang

{"title":"Multidimensional interaction mechanisms and engineering applications of microalgae-fungal microorganism symbiotic systems.","authors":"Yong Zhang, Yang Shen, Yining Gu, Yuan Yao, Meihan Liu, Yike He, Qiuzhen Wang","doi":"10.3934/microbiol.2026013","DOIUrl":"10.3934/microbiol.2026013","url":null,"abstract":"The symbiotic system of microalgae and fungal microorganisms, such as filamentous fungi, yeasts, and lichen-forming fungi, holds great potential in the fields of environmental remediation and bioresource development. Yet, it faces bottlenecks, including unclear symbiotic mechanisms, high energy consumption for biomass harvesting, poor adaptability to complex wastewater, and insufficient system integration. In this review, we systematically summarized the research progress on microalgae-fungi symbiotic systems in terms of germplasm resource exploration, multifaceted interaction mechanisms, and engineering applications. In particular, we focused on the core advantages of fungal pellet-assisted bioflocculation technology in overcoming the energy bottleneck of biomass harvesting, as well as its optimization strategies. The comprehensive performance of this system in wastewater purification, bioenergy accumulation, and high-value metabolite production was also evaluated. By integrating fundamental mechanisms with engineering application outcomes, we aimed to provide theoretical support and technical guidance for the construction of efficient, stable, and sustainable microalgae-fungi biorefinery platforms. Furthermore, we seek to facilitate the translation of this technology from laboratory research to industrial application.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 2","pages":"298-320"},"PeriodicalIF":5.4,"publicationDate":"2026-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13370272/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 acetoin-producing Bacillus species from Salicornia europaea rhizosphere with evaluation of their saline-alkaline adaptation. 海葵根际产乙素芽孢杆菌的分离鉴定及其盐碱适应性评价。

IF 5.4

AIMS Microbiology Pub Date : 2026-05-12 eCollection Date: 2026-01-01 DOI: 10.3934/microbiol.2026012

Yao Li, Hanwen Cui, Enbiao Wang, Tianwen Cao, Yao Meng, Mai Du, Tingting Li, Nan Gao

{"title":"Isolation and characterization of acetoin-producing Bacillus species from Salicornia europaea rhizosphere with evaluation of their saline-alkaline adaptation.","authors":"Yao Li, Hanwen Cui, Enbiao Wang, Tianwen Cao, Yao Meng, Mai Du, Tingting Li, Nan Gao","doi":"10.3934/microbiol.2026012","DOIUrl":"10.3934/microbiol.2026012","url":null,"abstract":"Soil salinization is a major constraint on global agricultural productivity, and the application of plant growth‑promoting rhizobacteria offers an important solution for the management and utilization of saline-alkali land. In this study, we aimed to isolate and characterize beneficial rhizobacteria from the halophyte Salicornia europaea growing in coastal saline‑alkali soils, and to evaluate their potential in promoting plant growth under stressful conditions. Among 57 purified bacterial isolates, 3 acetoin‑producing strains, identified as Bacillus sp. HPZ‑9, HPZ‑47, and HPZ‑50, were selected. They produced acetoin at concentrations of 2.30 g·L-1, 2.73 g·L-1, and 2.77 g·L-1, respectively. All strains exhibited broad environmental adaptability, sustaining growth and acetoin production across a pH range of 5-11, NaCl concentrations of 0.3-1.2 mol·L-1, and under moderate drought stress simulated with 20% polyethylene glycol 6000. Notably, HPZ‑9 tolerated NaCl levels up to 2.4 mol·L-1. In pot experiments with maize seedlings, inoculation with these strains significantly increased plant height, stem diameter, leaf length, and fresh and dry biomass of shoots and roots compared to the uninoculated controls (p < 0.05). The most notable improvement was observed in dry biomass, which increased by 49% to 60%. In conclusion, the selected Bacillus strains show strong plant growth‑promoting traits and high tolerance to saline‑alkaline stress. These findings highlight their potential as effective microbial inoculants for promoting crop health and improving saline-alkali soils.","PeriodicalId":46108,"journal":{"name":"AIMS Microbiology","volume":"12 2","pages":"282-297"},"PeriodicalIF":5.4,"publicationDate":"2026-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13370258/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148457244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0