Search Results - "Kempher, Megan L"
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Experimental warming accelerates positive soil priming in a temperate grassland ecosystem
Published in Nature communications (08-02-2024)“…Unravelling biosphere feedback mechanisms is crucial for predicting the impacts of global warming. Soil priming, an effect of fresh plant-derived carbon (C) on…”
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In vivo Functional Characterization of Hydrophilic X2 Modules in the Cellulosomal Scaffolding Protein
Published in Frontiers in microbiology (07-04-2022)“…As part of free cellulases or scaffolding proteins in cellulosomes, the hydrophilic non-catalytic X2 module is widely distributed in cellulolytic or other…”
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Anaerobic 3-methylhopanoid production by an acidophilic photosynthetic purple bacterium
Published in Archives of microbiology (01-12-2021)“…Bacterial lipids are well-preserved in ancient rocks and certain ones have been used as indicators of specific bacterial metabolisms or environmental…”
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Blastochloris tepida, sp. nov., a thermophilic species of the bacteriochlorophyll b-containing genus Blastochloris
Published in Archives of microbiology (01-12-2019)“…A new taxon is created for the thermophilic purple nonsulfur bacterium previously designated as Rhodopseudomonas strain GI. Strain GI was isolated from a New…”
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Effects of Genetic and Physiological Divergence on the Evolution of a Sulfate-Reducing Bacterium under Conditions of Elevated Temperature
Published in mBio (18-08-2020)“…Improving our understanding of how previous adaptation influences evolution has been a long-standing goal in evolutionary biology. Natural selection tends to…”
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Adaptive Evolution of Sphingobium hydrophobicum C1T in Electronic Waste Contaminated River Sediment
Published in Frontiers in microbiology (02-10-2019)“…Electronic waste (e-waste) has caused a severe worldwide pollution problem. Despite increasing isolation of degradative microorganisms from e-waste…”
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Genomic Features and Pervasive Negative Selection in Rhodanobacter Strains Isolated from Nitrate and Heavy Metal Contaminated Aquifer
Published in Microbiology spectrum (23-02-2022)“…species dominate in the Oak Ridge Reservation (ORR) subsurface environments contaminated with acids, nitrate, metal radionuclides, and other heavy metals. To…”
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Bacterial type II toxin-antitoxin systems acting through post-translational modifications
Published in Computational and structural biotechnology journal (01-01-2021)“…The post-translational modification (PTM) serves as an important molecular switch mechanism to modulate diverse biological functions in response to specific…”
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Characterization of a cold-active bacterium isolated from the South Pole “Ice Tunnel”
Published in Extremophiles : life under extreme conditions (01-09-2017)“…Extremely cold microbial habitats on Earth (those below −30 °C) are rare and have not been surveyed for microbes as extensively as environments in the 0 to…”
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10
Disentangling direct from indirect relationships in association networks
Published in Proceedings of the National Academy of Sciences - PNAS (11-01-2022)“…Networks are vital tools for understanding and modeling interactions in complex systems in science and engineering, and direct and indirect interactions are…”
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Phylogeny and photoheterotrophy in the acidophilic phototrophic purple bacterium Rhodoblastus acidophilus
Published in Archives of microbiology (01-07-2012)“…Norbert Pfennig isolated the first acidophilic purple bacterium over 40 years ago and named the organism Rhodopseudomonas acidophila (now Rhodoblastus…”
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Environmental filtering decreases with fish development for the assembly of gut microbiota
Published in Environmental microbiology (01-12-2016)“…Summary Gut microbiota typically occupy habitats with definable limits/borders that are comparable to oceanic islands. The gut therefore can be regarded as an…”
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Genetic Basis of Chromate Adaptation and the Role of the Pre-existing Genetic Divergence during an Experimental Evolution Study with Desulfovibrio vulgaris Populations
Published in mSystems (26-05-2021)“…Hexavalent chromium [Cr(VI)] is a common environmental pollutant. However, little is known about the genetic basis of microbial evolution under Cr(VI) stress…”
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Nascent Genomic Evolution and Allopatric Speciation of Myroides profundi D25 in Its Transition from Land to Ocean
Published in mBio (12-01-2016)“…A large amount of bacterial biomass is transferred from land to ocean annually. Most transferred bacteria should not survive, but undoubtedly some do. It is…”
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Target integration of an exogenous β-glucosidase enhances cellulose degradation and ethanol production in Clostridium cellulolyticum
Published in Bioresource technology (01-05-2023)“…[Display omitted] •First study to integrate an exogenous gene into Clostridium cellulolyticum.•Integration of secretory β-glucosidase increases cellulose…”
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Precise promoter integration improves cellulose bioconversion and thermotolerance in Clostridium cellulolyticum
Published in Metabolic engineering (01-07-2020)“…Lignocellulose has been used for production of sustainable biofuels and value-added chemicals. However, the low-efficiency bioconversion of lignocellulose…”
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Development of a Markerless Deletion Mutagenesis System in Nitrate-Reducing Bacterium Rhodanobacter denitrificans
Published in Applied and environmental microbiology (26-07-2022)“…has been found as the dominant genus in aquifers contaminated with high concentrations of nitrate and uranium in Oak Ridge, TN, USA. The stimulation of…”
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Response Regulator CD1688 Is a Negative Modulator of Sporulation in Clostridioides difficile
Published in Journal of bacteriology (16-08-2022)“…Two-component signal transduction systems (TCSs), consisting of a sensor histidine kinase (HK) and a response regulator (RR), sense environmental stimuli and…”
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Molecular basis for coordinating secondary metabolite production by bacterial and plant signaling molecules
Published in The Journal of biological chemistry (01-06-2022)“…The production of secondary metabolites is a major mechanism used by beneficial rhizobacteria to antagonize plant pathogens. These bacteria have evolved to…”
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Functional and structural diversification of incomplete phosphotransferase system in cellulose-degrading clostridia
Published in The ISME Journal (01-06-2023)“…Carbohydrate utilization is critical to microbial survival. The phosphotransferase system (PTS) is a well-documented microbial system with a prominent role in…”
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