Results 181 to 190 of about 31,568 (232)

Physicochemical Constraints on the Abiotic Polymerization of Nucleotides Into RNA

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 11, November 2025.
Abstract One of the key steps in the origin of life is the polymerization of nucleotides into nucleic acids like RNA. We have quantified the energetic impact of temperature, pressure, and composition on the polymerization of nucleotides into RNA using the Gibbs function. These Gibbs energies have been used to calculate the probability that a nucleotide
D. E. LaRowe, J. M. Dick
wiley   +1 more source

Linking Microbial Gene‐Expression and Denitrification Rates in Aquifers: Insights From an Intermediate‐Scale In Situ Injection‐Extraction Experiment and Reaction Model

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 11, November 2025.
Abstract Microorganisms catalyze the turnover of reactants in the subsurface, determining the fate of major groundwater constituents and contaminants. Yet our quantitative understanding of microbial dynamics lags behind its importance. Functional molecular‐biological methods offer a powerful tool (box) to quantify microbial dynamics in the environment.
C. Strobel   +6 more
wiley   +1 more source

Flux Insights: Forging New Understanding of Expanding Drylands and Squeezing Coastlines

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 11, November 2025.
Abstract Understanding how ecosystems function and respond under climate change is crucial. Drylands, covering over 40% of the global land surface, significantly contribute to global carbon (C) budget variations and biodiversity but face various threats.
Sung‐Ching Lee
wiley   +1 more source

Enrichment of Helminth Mitochondrial Genomes From Faecal Samples Using Hybridisation Capture

open access: yesMolecular Ecology Resources, Volume 25, Issue 8, November 2025.
ABSTRACT New approaches are urgently needed to enrich rare or low‐abundant DNA in complex samples. Soil‐transmitted helminths (STHs) inhabit heterogeneous environments, including the gastrointestinal tract of their host as adults and are excreted as eggs and larvae in faeces, complicating our understanding of their biology and the use of genetic tools ...
Marina Papaiakovou   +7 more
wiley   +1 more source

The fate of South America's endemic mammalian fauna in response to the most dramatic Cenozoic climate disruption. [PDF]

open access: yesProc Natl Acad Sci U S A
Buffan L   +5 more
europepmc   +1 more source

A Comprehensive Study of Biohopanoid Production in Alphaproteobacteria: Biosynthetic, Chemotaxonomical, and Geobiological Implications

open access: yesGeobiology, Volume 23, Issue 6, November/December 2025.
ABSTRACT Bacteriohopanepolyol derivatives (BHPDs) and dia‐ and catagenetic products formed from these bacterial membrane modifiers are extensively used as biomarkers in molecular ecological and geoscience studies. Some BHPDs can be assigned to specific phylogenetic bacterial groups. With the vastly increasing availability of complete bacterial genomes,
Jaap S. Sinninghe Damsté   +5 more
wiley   +1 more source

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