Results 91 to 100 of about 5,205 (203)

Metatranscriptomics analysis of silicon transporters highlights underappreciated contributors to silica cycling in the Baltic Sea

Limnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract The biotic component of the marine silica cycle strongly influences global biogeochemical cycling. Active uptake of dissolved silicic acid (dSi) occurs via silicon transporters (SITs), first characterized in diatoms but widely distributed in eukaryotes. Studying SITs and SIT‐like (SIT‐L) gene transcripts provides insights into the dynamics and
Yelena Churakova, Daniel Lundin, Evangelia Charalampous, Anabella Aguilera, Benjamin Pontiller, Daniel J. Conley, Jarone Pinhassi, Hanna Farnelid   +7 more
wiley   +1 more source

Synchrotron‐Based X‐Ray Tomography of Strontium Phosphate Chemical Gardens

ChemSystemsChem, Volume 8, Issue 5, September 2026.
Synchrotron‐based X‐ray tomography at the DanMAX beamline (MAX IV laboratory) is able to address challenges related to in situ observations at high spatial (sub‐micron) resolution in the field of chemical gardens or non‐equilibrium systems in general. The results therefore reflect a buoyancy‐linked mechanism of growth as well as the mineralization of ...
Tan‐Phat Huynh, Emilia Ares, Parastoo Vahdatiyekta, Anne Marie Møller Faaborg, Henrik Birkedal, Thorbjørn Erik Køppen Christensen   +5 more
wiley   +1 more source

Significant Imbalance Between Human Activities and Ecosystem Services in the Tibet Autonomous Region of China: Evidence From an Improved Coupling Coordination Degree Model

Land Degradation &Development, Volume 37, Issue 14, Page 10255-10271, 30 August 2026.
ABSTRACT Maintaining balanced interactions between humans and ecosystems in plateau regions is critical to achieving global sustainable development. However, existing methodologies are insufficient to fully elucidate the complex coupling and coordination relationships between human activities and ecosystems, as well as the sustainable development ...
Yaohang Sun, Dongxia Yue, Jianjun Guo, Hanhua Deng, Jiaoyu Zheng, Gang Jin   +5 more
wiley   +1 more source

From o‐Phenylenediamine to Flavin Derivatives: A Potential Prebiotic Carbon Skeleton Expansion With Formaldehyde, Cyanide, and CO2

Advanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
A Strecker‐type reaction of aromatic ortho‐diamines with various aldehydes and cyanide assembles the bicyclic amidine core of flavin‐derived heterocycles under mild conditions. Subsequent oxidation, radical or photochemical cyanation, carboxylation with CO2, and CO2‐mediated cyclization build the three‐ring alloxazine scaffold. This sequence provides a
Christian Held, Rodrigo José da Silva Lima, Ji‐Woong Lee   +2 more
wiley   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, Volume 16, Issue 8, Page 1537-1549, August 2026.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Comparative Neuroanatomy of Hydrothermal Vent Shrimps: Ecological Differentiation Among Four Alvinocaridid Species

Journal of Comparative Neurology, Volume 534, Issue 8, August 2026.
Hydrothermal vent shrimps share a conserved brain architecture with enlarged mushroom bodies and terminal medullae, shaped by similar environmental pressures. Despite this similarity, some anatomical features near the brain vary between species, suggesting that some ecological factors, such as microhabitat and trophic strategies, also influence nervous
Adrien Mathou, Julia Machon, Rebecca Meth, Magali Zbinden, Juliette Ravaux, Steffen Harzsch   +5 more
wiley   +1 more source

Concomitant Mineral Carbonation and CO2 Reduction in Short‐Term Water‐Basalts Reaction: Difference Between Basaltic Glass and Basaltic Crystals

Global Challenges, Volume 10, Issue 8, August 2026.
Short‐term CO2–water reactions show that crystalline basalt undergoes more extensive carbonation than basaltic glass and is associated with detectable H2 and higher CO and CH4 concentrations. This contrast is consistent with the greater early reactivity of Fe‐ and Mg‐bearing crystalline phases, indicating that basalt mineralogy influences coupled ...
Andrea Pierozzi, Rémi Rateau, Andrea Orlando, Daniele Borrini, Franco Tassi, Juan Diego Rodriguez‐Blanco   +5 more
wiley   +1 more source

Discovery of the first hydrothermal field along the 500-km-long Knipovich Ridge offshore Svalbard (the Jøtul field)

Scientific Reports
Oceanic spreading centers north of Iceland are characterized by ultraslow spreading rates, and related hydrothermal activity has been detected in the water column and at the seafloor along nearly all ridge segments.
Gerhard Bohrmann, Katharina Streuff, Miriam Römer, Stig-Morten Knutsen, Daniel Smrzka, Jan Kleint, Aaron Röhler, Thomas Pape, Nils Rune Sandstå, Charlotte Kleint, Christian Hansen, Christian dos Santos Ferreira, Maren Walter, Gustavo Macedo de Paula Santos, Wolfgang Bach   +14 more
doaj   +1 more source

Reappraisal of Holocene Caldera Resurgence at Campi Flegrei (Southern Italy): A Long‐Lived Magma‐Driven Resurgent Dome System

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Caldera systems commonly experience inner resurgence, which shapes patterns of volcanic activity. However, incomplete reconstructions of past ground deformation can lead to incorrect recognition of precursory signals. The Campi Flegrei caldera (Italy) provides an exceptional opportunity to address this issue as uplifted marine sediments ...
Jacopo Natale, Stefano Vitale
wiley   +1 more source

Aluminum Phyllosilicate and Jarosite Formation Through Alteration of Reworked Al/Si‐Rich Volcaniclastic Sediments in Nili Fossae, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Aluminum phyllosilicates occur in 1–10s of km2 exposures of Noachian (∼3.7 Ga) rock across Mars and typically appear stratigraphically above Fe/Mg‐phyllosilicates. These units have been proposed to represent pedogenic basalt weathering sequences.
S. R. Baker, B. L. Ehlmann
wiley   +1 more source