Search Results - "Amenabar, Maximiliano J"

Bioenergetic constraints on the origin of autotrophic metabolism by Boyd, Eric S, Amenabar, Maximiliano J, Poudel, Saroj, Templeton, Alexis S

“…Autotrophs form the base of all complex food webs and seemingly have done so since early in Earth history. Phylogenetic evidence suggests that early autotrophs…”
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Origin and Evolution of Flavin-Based Electron Bifurcating Enzymes by Poudel, Saroj, Dunham, Eric C, Lindsay, Melody R, Amenabar, Maximiliano J, Fones, Elizabeth M, Colman, Daniel R, Boyd, Eric S

“…Twelve evolutionarily unrelated oxidoreductases form enzyme complexes that catalyze the simultaneous coupling of exergonic and endergonic oxidation-reduction…”
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Subsurface Archaea associated with rapid geobiological change in a model Yellowstone hot spring by Colman, Daniel R., Amenabar, Maximiliano J., Fernandes-Martins, Maria C., Boyd, Eric S.

“…Despite over a century of study, it is unknown if continental hydrothermal fields support high-temperature subsurface biospheres. Cinder Pool is among the…”
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From the Discovery of Extremozymes to an Enzymatic Product: Roadmap Based on Their Applications by Espina, Giannina, Muñoz-Ibacache, Sebastián A, Cáceres-Moreno, Paulina, Amenabar, Maximiliano J, Blamey, Jenny M

“…With the advent of the industrial revolution, the use of toxic compounds has grown exponentially, leading to a considerable pollution of the environment…”
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Isolation of a Psychrotolerant and UV-C-Resistant Bacterium from Elephant Island, Antarctica with a Highly Thermoactive and Thermostable Catalase by Monsalves, María T, Ollivet-Besson, Gabriela P, Amenabar, Maximiliano J, Blamey, Jenny M

“…Microorganisms present in Antarctica have to deal not only with cold temperatures but also with other environmental conditions, such as high UV radiation, that…”
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Mechanisms of Mineral Substrate Acquisition in a Thermoacidophile by Amenabar, Maximiliano J, Boyd, Eric S

“…The thermoacidophile is widely distributed in Yellowstone National Park hot springs that span large gradients in pH (1.60 to 4.84), temperature (42 to 90°C),…”
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Purification and characterization of two thermostable xylanases from a halotolerant Bacillus sp. Asc6BA isolated from Salar de Ascotán, Atacama Desert by Contreras, Francisca, Amenabar, Maximiliano J., Blamey, Jenny M.

“…Two extracellular xylanases, denominated X2 and X3, were purified and characterized from the halotolerant bacterium Bacillus sp. Asc6BA isolated from “Salar de…”
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A review of the mechanisms of mineral-based metabolism in early Earth analog rock-hosted hydrothermal ecosystems by Amenabar, Maximiliano J., Boyd, Eric S.

“…Prior to the advent of oxygenic photosynthesis ~ 2.8–3.2 Ga, life was dependent on chemical energy captured from oxidation–reduction reactions involving…”
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Astrobiological implications of the organic and inorganic cyanide utilization by a novel Antarctic hyperthermophilic Pyrococcus strain by Uribe-Redlich, Patricio A., Amenabar, Maximiliano J., Dennett, Geraldine V., Blamey, Jenny M.

“…Organic and inorganic cyanides are widely distributed in nature, yet not much is known about the ability of microorganisms to use these compounds as a source…”
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Phylogenomic analysis of novel Diaforarchaea is consistent with sulfite but not sulfate reduction in volcanic environments on early Earth by Colman, Daniel R., Lindsay, Melody R., Amenabar, Maximiliano J., Fernandes-Martins, Maria C., Roden, Eric R., Boyd, Eric S.

“…The origin(s) of dissimilatory sulfate and/or (bi)sulfite reducing organisms (SRO) remains enigmatic despite their importance in global carbon and sulfur…”
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Mode of carbon and energy metabolism shifts lipid composition in the thermoacidophile Acidianus by Rhim, Jeemin H, Zhou, Alice, Amenabar, Maximiliano J, Boyer, Grayson M, Elling, Felix J, Weber, Yuki, Pearson, Ann, Boyd, Eric S, Leavitt, William D

“…Some archaea make unique membrane-spanning lipids with different numbers of five- or six-membered rings in the core structure, which modulate membrane fluidity…”
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Seasonal hydrologic and geologic forcing drive hot spring geochemistry and microbial biodiversity by Colman, Daniel R., Lindsay, Melody R., Harnish, Annette, Bilbrey, Evan M., Amenabar, Maximiliano J., Selensky, Matthew J., Fecteau, Kristopher M., Debes, Randall V., Stott, Matthew B., Shock, Everett L., Boyd, Eric S.

“…Summary Hot springs integrate hydrologic and geologic processes that vary over short‐ and long‐term time scales. However, the influence of temporal hydrologic…”
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Electron acceptor availability alters carbon and energy metabolism in a thermoacidophile by Amenabar, Maximiliano J., Colman, Daniel R., Poudel, Saroj, Roden, Eric E., Boyd, Eric S.

“…Summary The thermoacidophilic Acidianus strain DS80 displays versatility in its energy metabolism and can grow autotrophically and heterotrophically with…”
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Microbial substrate preference dictated by energy demand rather than supply by Amenabar, Maximiliano J., Shock, Everett L., Roden, Eric E., Peters, John W., Boyd, Eric S.

“…Growth substrates that maximize energy yield are widely thought to be utilized preferentially by microorganisms. However, observed distributions of…”
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Probing the geological source and biological fate of hydrogen in Yellowstone hot springs by Lindsay, Melody R., Colman, Daniel R., Amenabar, Maximiliano J., Fristad, Kirsten E., Fecteau, Kristopher M., Debes, Randall V., Spear, John R., Shock, Everett L., Hoehler, Tori M., Boyd, Eric S.

“…Summary Hydrogen (H2) is enriched in hot springs and can support microbial primary production. Using a series of geochemical proxies, a model to describe…”
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Purification and characterization of a thermostable glutamate dehydrogenase from a thermophilic bacterium isolated from a sterilization drying oven by Amenabar, Maximiliano J, Blamey, Jenny M

“…Glutamate dehydrogenase from axenic bacterial cultures of a new microorganism, called GWE1, isolated from the interior of a sterilization drying oven, was…”
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Acidianus Tailed Spindle Virus: a New Archaeal Large Tailed Spindle Virus Discovered by Culture-Independent Methods by Hochstein, Rebecca A, Amenabar, Maximiliano J, Munson-McGee, Jacob H, Boyd, Eric S, Young, Mark J

“…The field of viral metagenomics has expanded our understanding of viral diversity from all three domains of life (Archaea, Bacteria, and Eukarya)…”
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Subsurface processes influence oxidant availability and chemoautotrophic hydrogen metabolism in Yellowstone hot springs by Lindsay, Melody R., Amenabar, Maximiliano J., Fecteau, Kristopher M., Debes, Randal V., Fernandes Martins, Maria C., Fristad, Kirsten E., Xu, Huifang, Hoehler, Tori M., Shock, Everett L., Boyd, Eric S.

“…The geochemistry of hot springs and the availability of oxidants capable of supporting microbial metabolisms are influenced by subsurface processes including…”
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Microbial substrate preference dictated by energy demand, not supply by Amenabar, Maximiliano J, Shock, Everett L, Roden, Eric E, Peters, John W, Boyd, Eric S

“…Growth substrates that maximize energy yield are widely thought to be utilized preferentially by microorganisms. However, observed distributions of…”
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Cyanobacteria and Algae Meet at the Limits of Their Habitat Ranges in Moderately Acidic Hot Springs by Fecteau, Kristopher M., Boyd, Eric S., Lindsay, Melody R., Amenabar, Maximiliano J., Robinson, Kirtland J., Debes, R. Vincent, Shock, Everett L.

“…Microbial oxygenic photosynthesis in thermal habitats is thought to be performed by Bacteria in circumneutral to alkaline systems (pH > 6) and by Eukarya in…”
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