22 papers · ranked by Valyu relevance
Takumi Ishii, Satoshi Kawaichi, Hirotaka Nakagawa, Kazuhito Hashimoto + 1 more
'Kazuhito Hashimoto' 'Ryuhei Nakamura'] At deep-sea vent systems, hydrothermal emissions rich in reductive chemicals replace solar energy as fuels to support microbial carbon assimilation. Until recently, all the microbial components at vent systems have been assumed to be fostered by the primary production of…
Hongyue Dang, Chen-Tung A. Chen
Transformation and mobilization of bioessential elements in the biosphere, lithosphere, atmosphere, and hydrosphere constitute the Earth’s biogeochemical cycles, which are driven mainly by microorganisms through their energy and material metabolic processes. Without microbial energy harvesting from sources of light and…
Wenchao Deng, Zihao Zhao, Yufang Li, Rongguang Cao + 8 more
Background Active hydrothermal vents create extreme conditions characterized by high temperatures, low pH levels, and elevated concentrations of heavy metals and other trace elements. These conditions support unique ecosystems where chemolithoautotrophs serve as primary producers. The steep temperature and pH gradients…
Will A. Overholt, Susan Trumbore, Xiaomei Xu, Till L.V. Bornemann + 10 more
The terrestrial subsurface contains nearly all of Earth’s freshwater reserves^1^ and harbors upwards of 60% of our planet’s total prokaryotic biomass^2,3^. While genetic surveys suggest these organisms rely on in situ carbon fixation, rather than the translocation of photosynthetically derived organic carbon^4–6^…
Shasha Wang, Lijing Jiang, Zhuoming Zhao, Zhen Chen + 8 more
'Karine Alain' 'Liang Cui' 'Yangsheng Zhong' 'Yongyi Peng' 'Qiliang Lai' 'Xiyang Dong' 'Zongze Shao'] Title: Abstract Diazotrophic microorganisms regulate marine productivity by alleviating nitrogen limitation. So far chemolithoautotrophic bacteria are widely recognized as the principal diazotrophs in oligotrophic…
Albin Alfreider, Andreas Baumer, Teresa Bogensperger, Thomas Posch + 2 more
'Michaela M. Salcher' 'Monika Summerer'] Title: Summary While mechanisms of different carbon dioxide (CO2) assimilation pathways in chemolithoautotrohic prokaryotes are well understood for many isolates under laboratory conditions, the ecological significance of diverse CO2 fixation strategies in the environment is…
Hang Yu, Grayson L. Chadwick, Usha F. Lingappa, Jared R. Leadbetter
Chemolithoautotrophic manganese oxidation has long been theorized, but only recently demonstrated in a bacterial co-culture. The majority member of the co-culture, Candidatus Manganitrophus noduliformans, is a distinct but not yet isolated lineage in the phylum Nitrospirota (Nitrospirae). Here, we established two…
Nico J. Claassens, Giovanni Scarinci, Axel Fischer, Avi I. Flamholz + 4 more
Carbon fixation via the Calvin cycle is constrained by the side activity of Rubisco with dioxygen, generating 2-phosphoglycolate. The metabolic recycling of 2-phosphoglycolate, an essential process termed photorespiration, was extensively studied in photoautotrophic organisms, including plants, algae, and…
Martin Taubert, Beatrix M. Heinze, Will A. Overholt, Georgette Azemtsop + 6 more
Metagenome-assembled genomes (MAGs) have revealed the existence of novel bacterial and archaeal groups and provided insight into their genetic potential. However, metagenomics and even metatranscriptomics cannot resolve how the genetic potential translates into metabolic functions and physiological activity. Here, we…
Barbara Bayer, Roberta L. Hansman, Meriel J. Bittner, Beatriz E. Noriega-Ortega + 3 more
Ammonia-oxidizing archaea (AOA) constitute a considerable fraction of microbial biomass in the global ocean, comprising 20-40% of the ocean’s prokaryotic plankton and thus play an important role in global nitrogen cycle. However, it remains enigmatic to what extent these chemolithoautotrophic archaea are releasing…
T. C. Onstott, B. L. Ehlmann, H. M. Sapers, Max Coleman + 4 more
'Magnus Ivarsson' 'Jennifer Marlow' 'Anna Neubeck' 'P. B. Niles'] Here we review published studies on the abundance and diversity of terrestrial rock-hosted life, the environments it inhabits, the evolution of its metabolisms, and its fossil biomarkers to provide guidance in the search for the biomarkers of rock-hosted…
Pere Aguiló‐Nicolau, Concepción Iñiguez, Sebastià Capó‐Bauçà, Jeroni Galmés
'Jeroni Galmés'] Extreme environments challenge fundamental pillars of photosynthesis: light capture and carbon fixation. Organisms thriving in extreme conditions, such as high and low temperatures, extreme pH levels, and high salinity, have evolved remarkable adaptive mechanisms allowing them to sustain…
Amanda Stromecki, Laura Murray, Heather Fullerton, Craig L. Moyer
Crater Lake, Oregon is an oligotrophic freshwater caldera lake fed by thermally and chemically enriched hydrothermal springs. These vents distinguish Crater Lake from other freshwater systems and provide a unique ecosystem for study. This study examines the community structure of benthic microbial mats occurring with…
Colin Goldblatt, Jake K. Eager-Nash, Jeremy R. Horne
The Archean is the Eon of greatest transition in the Earth system, manifest in the Atmosphere. Biological processes are a dominant control of the modern atmospheric composition; this was well established by the end-Archean, when biogenic oxygen transformed atmospheric chemistry. Yet the initial conditions for the…
Francesco Ricci, Pok Man Leung, Tess Hutchinson, Thanh Nguyen-Dinh + 8 more
Microbialites—carbonate structures formed under the influence of microbial action— are the earliest macroscopic evidence of life. For three billion years, the microbial mat communities responsible for these structures fundamentally shaped Earth’s biogeochemical cycles. In photosynthetic microbial communities, light…
Authors not listed
The use of single carbon (C1) molecules, such as carbon dioxide or formate, is crucial in the transition from a linear, petroleum-based economy to a circular bioeconomy. Formate can serve as both a carbon and energy source, further enhancing its attractiveness as a feedstock. Cupriavidus necator, a lithoautotrophic…
Shiladitya DasSarma, Edward W. Schwieterman
1 Department of Microbiology and Immunology, University of Maryland School of Medicine, Institute of Marine and Environmental Technology, Baltimore, MD, USA; 2 Department of Earth Sciences, University of California, Riverside, CA, USA; 3 NASA Postdoctoral Program Fellow, Universities Space Research Association…
Noel Pérez, Rolando Cárdenas, Osmel Martín, Michel Leiva-Mora
We perform a quantitative assessment for the potential for photosynthesis in hydrothermal vents in the deep ocean. The photosynthetically active radiation in this case is from geothermal origin: the infrared thermal radiation emitted by hot water, at temperatures ranging from 473 up to 673 K. We find that at these…
Authors not listed
Extremophiles, organisms thriving in extreme environments – from scorching hydrothermal vents to acidic lakes and polar ice – challenge our understanding of how life thrives and adapts. These organisms exhibit remarkable diversity, including thermophiles, psychrophiles, acidophiles, halophiles, and others, and…
Dimitra Atri, Margaret Kamenetskiy, Michael May, Archit Kalra + 2 more
'Aida Castelblanco' 'Antony Quiñones-Camacho'] - 1. Center for Space Science, New York University Abu Dhabi, Abu Dhabi, UAE - 2. Blue Marble Space Institute of Science, Seattle, WA, USA - 3. University of Colorado, Boulder, CO, USA - 4. University of California, Berkeley, USA - 5. Carmel High School, Carmel, Indiana…
Authors not listed
Biological light-harvesting systems comprise complex protein-pigment assemblies that exhibit vast structural and functional diversity, underscoring the design principles of functional bio-inspired materials applicable to sustainable energy-harvesting technologies. Thus, this investigation aimed to decode the structural…
Manasvi Lingam
The capacity to sense gradients efficiently and acquire information about the ambient environment confers many advantages like facilitating movement toward nutrient sources or away from toxic chemicals. The amplified dispersal evinced by organisms endowed with motility is possibly beneficial in related contexts. Hence…