Results 141 to 150 of about 925,381 (311)

Groundwater-Driven Evolution of Prebiotic Alkaline Lake Environments

Life
Alkaline lakes are thought to have facilitated prebiotic synthesis reactions on the early Earth because their modern analogs accumulate vital chemical feedstocks such as phosphate through the evaporation of dilute groundwaters.
Benjamin M. Tutolo, Robert Perrin, Rachel Lauer, Shane Bossaer, Nicholas J. Tosca, Alec Hutchings, Serhat Sevgen, Michael Nightingale, Daniel Ilg, Eric B. Mott, Thomas Wilson   +10 more
doaj   +1 more source

Role of the Interchangeable Cations on the Sorption of Fumaric and Succinic Acids on Montmorillonite and its Relevance in Prebiotic Chemistry

, 2021
A. L. Meléndez-López, Marìa Colín-García, Fernando Ortega‐Gutiérrez, J. Cruz-Castañeda   +3 more
openalex   +1 more source

Dietary management of normoalbuminaemic canine chronic enteropathies

Journal of Small Animal Practice, EarlyView.
Dietary management represents the cornerstone of treatment for chronic enteropathy in dogs, with approximately 50% of cases in referral practice responding to dietary intervention alone. Success rates improve significantly when multiple systematic diet trials are implemented.
A. Kathrani, K. Allenspach, D. Dito, J. Hernandez, S. Unterer, M. Vecchio, C. Webb, M. K. Tolbert   +7 more
wiley   +1 more source

Influence of minerals on aldose formation during hydrothermal processes in meteorite parent bodies

Progress in Earth and Planetary Science
Various prebiotic organic compounds have been identified in meteorites. Understanding the origins of these compounds is essential to comprehending prebiotic chemistry in the early Solar System.
Taiyu Fujii, Shunpei Abe, Naoki Hirakawa, Kensei Kobayashi, Yoko Kebukawa   +4 more
doaj   +1 more source

Distinguishing Biotic vs. Abiotic Origins of 'Bio'signatures: Clues from Messy Prebiotic Chemistry for Detection of Life in the Universe. [PDF]

Life (Basel), 2023
Bapat NV, Rajamani S.
europepmc   +1 more source

Late Stage Mannan Metabolism in Cellvibrio japonicus Requires the Combined Action of a Mannosyl‐Glucose Phosphorylase and a Mannobiose Epimerase

Molecular Microbiology, EarlyView.
Model for the non‐PTS utilization of manno‐oligosaccharides by Cellvibrio japonicus. The Mgp130A and EpiA enzymes are essential for the utilization of mannose residues. ABSTRACT Manno‐oligosaccharides and their metabolism play important roles in gut health, pharmaceutical development, and renewable chemical production.
Jessica K. Novak, Jeffrey G. Gardner
wiley   +1 more source

Differential stability and dynamics of DNA-based and RNA-based coacervates affect non-enzymatic RNA chemistry

Nature Communications
The RNA-peptide world hypothesis postulates the early co-evolution of RNA and peptides that led to the emergence of non-enzymatic RNA replication and peptide synthesis.
Karina K. Nakashima, Fatma Zohra Mihoubi, Jagandeep S. Saraya, Kieran O. Russell, Fidan Rahmatova, James D. Robinson, Maria Julia Maristany, Jan Huertas, Roger Rubio-Sánchez, Rosana Collepardo-Guevara, Derek K. O’Flaherty, Claudia Bonfio   +11 more
doaj   +1 more source

The oral microbiota and periodontal health in orthodontic patients

Periodontology 2000, EarlyView.
Abstract The oral microbiota develops within the first 2 years of childhood and becomes distinct from the parents by 4 years‐of‐age. The oral microbiota plays an important role in the overall health/symbiosis of the individual. Deviations from the state of symbiosis leads to dysbiosis and an increased risk of pathogenicity.
Brandon W. Peterson, Geerten‐Has Tjakkes, Anne‐Marie Renkema, David J. Manton, Yijin Ren   +4 more
wiley   +1 more source

A New Approach in Prebiotic Chemistry Studies: Proline Sorption Triggered by Mineral Surfaces Analysed Using XPS. [PDF]

Life (Basel), 2023
Cueto-Díaz EJ, Gálvez-Martínez S, Colin-García M, Mateo-Martí E.   +3 more
europepmc   +1 more source

Abiotic and prebiotic phosphorus chemistry

, 2011
The chief obstacle to understand the metabolic origin of life or RNA-based life is to identify a plausible mechanism for overcoming the clutter wrought by abiotic chemistry. Probably trough simple abiotic and then prebiotic reactions we could arrive to simple pre-RNA molecules. Here we report a possible preibiotic synthesis for heterocyclic compounds,
openaire   +2 more sources