Role of Noise in the Fairen–Velarde Model of Bacterial Respiration

Advanced Theory and Simulations, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

Abstract Bacterial respiration, a fundamental biological process, plays crucial role in ecological systems. The Fairen–Velarde model provides theoretical framework to study the interplay between oxygen and nutrient concentrations bacterial populations, representing system of coupled nonlinear differential equations. In this work, how introduction noise affects stability behavior respiration is investigated. Biological systems are inherently stochastic, with arising from environmental fluctuations molecular‐level randomness. Through numerical simulations, random influence system's analyzed, particularly, transition limit cycles fixed points. These results demonstrate that can induce reduction time scales, pushing toward domain points, which contrasts noiseless case where exhibits stable cycle. By employing statistical analysis across varying intensities, likelihood reaching quantified area examined under different conditions. insights contribute broader understanding stochastic factors affect population dynamics, offering implications for microbial ecology management processes natural engineered environments.

Язык: Английский

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Microbial community composition and hydrochemistry of underexplored geothermal waters in Croatia

Systematic and Applied Microbiology, Год журнала: 2022, Номер 45(6), С. 126359 - 126359

Опубликована: Сен. 13, 2022

Язык: Английский

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Thiothrix and Sulfurovum genera dominate bacterial mats in Slovak cold sulfur springs

Environmental Microbiome, Год журнала: 2023, Номер 18(1)

Опубликована: Сен. 20, 2023

Microbiota of sulfur-rich environments has been extensively studied due to the biotechnological potential sulfur bacteria, or as a model ancient life. Cold terrestrial springs are less compared sulfur-oxidizing microbiota hydrothermal vents, volcanic environments, soda lakes. Despite that, several studies suggested that harbor diverse microbial communities because unique geochemical conditions upwelling waters. In this study, five was examined using 16 S rRNA gene sequencing. The clear dominance Proteobacteria and Campylobacterota phyla cold observed. Contrary hot spring dominated by Aquificota Firmicutes phylum respectively. Sulfur-oxidizing genera constituted dominant part populations with Thiothrix Sulfurovum identified core in Slovakia. Additionally, study emphasizes Slovakia support unique, poorly characterized bacterial bacteria.

Язык: Английский

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Microbial Community Composition in Thermal Waters from the Lindian Geothermal Field (Songliao Basin, North-Eastern China)

Water, Год журнала: 2022, Номер 14(4), С. 632 - 632

Опубликована: Фев. 18, 2022

Geothermal systems represent discrete and relatively homogenous habitats for extremophiles; investigation into the microbial community is key to revealing geochemical environment evolution of fluids in geothermal reservoirs. The reservoir Lindian field Northeast China, highly reducing rich methane, but pathways methane generation related structure are still unclear. In this research, five thermal water samples were collected tested, diversity analyzed. results show that sandstone belonging low-temperature (reservoir temperature < 90°C) brackish (total dissolved solids concentration between 1000 10,000 mg/L) environment, richness high. different from other reported similar oilfields, which may be with abundant organic matter. According analysis archaeal function, biogas production dominated by hydrogen nutrition type production, while H2 methylamine secondary, Pearson correlation communities more strongly correlated physicochemical factors than bacterial communities.

Язык: Английский

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Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Water Environment Research, Год журнала: 2022, Номер 94(11)

Опубликована: Ноя. 1, 2022

Abstract The Feng‐Sang River is a metropolitan river in Kaohsiung City, Taiwan. In this study, sediments were analyzed to investigate the distributions and sources of polycyclic aromatic hydrocarbons (PAHs). Sediment Quality Guidelines (SQGs), potentially carcinogenic PAHs (TEQ carc ), toxic equivalence quotient (TEQ) applied evaluate influences on ecosystems microbial diversities. Results indicate that concentrations varied between seasons locations. ∑ 16 ranged from 73.6 603.8 ng/kg dry 2.3 199.3 wet seasons. This could be because flushing effect during seasons, which caused movement dilution PAH‐contaminated sediments. Diagnostic ratio analysis infers high levels generated by combustion processes vehicle traffic, results multivariate descriptive statistical also demonstrate vehicular traffic pollution major emission source contamination. Comparisons with SQGs sediment below effects range low (ERL) values, thus, immediate threat organisms might not significant. diagnostic analyses are effective methods for PAH appointment. metagenomic assay imply contained essential species eminent diversity. detected PAH‐degrading bacteria ( Desulfatiglans, Dechloromonas, Sphingomonas, Methylobacterium, Rhodobacter, Clostridium , Exiguobacterium ) played key role biotransformation, Dechloromonas Rhodobacter had higher relative abundance. diversity contaminated environment induced changes governing groups Practitioner Points Microbial composition highly affected anthropogenic pollution. Combustion contribute urban PAHs. dominant PAHs‐degrading

Язык: Английский

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Isolation and Characterization of Thermophilic Bacteria from a Hot Spring in the State of Hidalgo, Mexico, and Geochemical Analysis of the Thermal Water

Microorganisms, Год журнала: 2024, Номер 12(6), С. 1066 - 1066

Опубликована: Май 24, 2024

Hot springs worldwide can be a source of extremophilic microorganisms biotechnological interest. In this study, samplings hot spring in Hidalgo, Mexico, were conducted to isolate, identify, and characterize morphologically, biochemically, molecularly those bacterial strains with potential industrial applications. addition, physicochemical geochemical examination the was fully understand study region its connection discovered. The classified as sulfate-calcic according Piper Diagram; hydrogeochemical analysis showed possible interactions between minerals water. Eighteen isolated optimal growth temperatures from 50 55 °C. All are Gram-positive, majority having rod shape, one round 17 produce endospores. Hydrolysis tests on cellulose, pectin, xylan agar plates demonstrated enzymatic activity some strains. Molecular identification through 16S rDNA gene allowed classification within Phylum Firmicutes Deinococcus-Thermus. associated genera Anoxybacillus, Bacillus, Anerunibacillus, Paenibacillus, Deinococcus, indicating diversity

Язык: Английский

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Microbial Diversity Analysis and Bioprospecting from Indian Geothermal Springs

Geomicrobiology Journal, Год журнала: 2024, Номер 41(5), С. 519 - 529

Опубликована: Май 2, 2024

Indian geothermal springs are found predominantly in the Himalayan region and characterized by high temperatures, acidic or alkaline pH, mineral content. The unique combination of these factors provides a niche for survival proliferation wide range microbial organisms. More than 400 have been reported segregated into different groups. Studies conducted employing culture dependent independent methodologies revealed presence diverse communities, including Proteobacteria, Firmicutes, Actinobacteria, Cyanobacteria. These microorganisms evolved adaptations to withstand harsh conditions springs. diversity is not only fascinating from an ecological perspective but also holds great potential biotechnological applications such as ability produce enzymes, pigments, bioconversion lignocellulosic biomass heavy metal removal. metabolic properties attracted attention researchers various applications, development novel therapeutics, industrial bioremediation agents.

Язык: Английский

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Influence of Geothermal Fumaroles in Driving the Microbial Community Dynamics and Functions of Adjacent Ecosystems

Journal of Basic Microbiology, Год журнала: 2024, Номер unknown

Опубликована: Июнь 10, 2024

ABSTRACT Growing evidence suggests that the hydrochemical properties of geothermal fumaroles may play a crucial role in shaping diversity and functions microbial communities various environments. In present study, impact furaneols on their metabolic across rock‐soil‐plant continuum was explored considering varying distances from fumarole source. The results revealed bacterial phylum Proteobacteria predominant all sample types, except 10 m rock sample, irrespective sampling distance. Archaeal phyla, such as Euryarchaeota Crenarchaeota, were more prevalent soil samples, whereas phyla plant samples. Thermoacidophilic archaeons, including Picrophilus , Ferroplasma Thermogymnomonas dominant rocks samples 1 5 distances; acidophilic mesophiles, Ferrimicrobium Granulicella abundant rhizoplane rhizosphere‐associated microbes Pseudomonas Pedobacter, Rhizobium Novosphingobium found rhizosphere functional analysis highlighted higher expression sulfur oxidative pathways samples; dark iron oxidation nitrate/nitrogen respiratory findings underscore adaptations continuum, emphasizing intricate relationship between adjacent ecosystems. These insights offer understanding evolution life highlight pivotal roles ecosystem dynamics functions.

Язык: Английский

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Recreational hot springs as environmental reservoir of potential multidrug-resistant pathogens

Environmental Research, Год журнала: 2024, Номер 262, С. 119841 - 119841

Опубликована: Авг. 24, 2024

• Hot springs and spas can harbor opportunistic human pathogens. Sequencing microbial isolates from 29 hot reveal multidrug resistant Sequences related to Acinetobacter Pseudomonas dominate recreational springs. Recreational harboring higher abundances of

Язык: Английский

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Bacterial Diversity Along the Geothermal Gradients: Insights from the High-altitude Himalayan Hot Spring Habitats of Sikkim

Current Research in Microbial Sciences, Год журнала: 2024, Номер 7, С. 100310 - 100310

Опубликована: Янв. 1, 2024

Geothermal habitats present a unique opportunity to study microbial adaptation varying temperature conditions. In such environments, distinct gradients foster diverse communities, each adapted its optimal niche. However, the complex dynamics of bacterial populations in across these high-altitude hot springs remain largely unexplored. We hypothesize that is primary driver diversity, and richness peaks at intermediate temperatures. To investigate this, we analysed diversity using 16S rRNA amplicon sequencing three regions: region 56-65 °C (hot spring), warm 35-37 (path carrying spring water river), cold 4-7 (river basin). Our findings showed Bacillota was most abundant phylum (45.51 %), followed by Pseudomonadota (32.81 %) Actinomycetota (7.2 %). Chloroflexota flourished regions, while thrived cooler areas. Core microbiome analysis indicated species highest region, declining both regions. Interestingly, an anomaly observed with

Язык: Английский

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