Following the ubiquitous autotrophic ammonia-oxidizing archaea (AOA), heterotrophic representatives of the marine Nitrososphaerota (HMN) form the second most abundant group within this archaeal phylum...
The mesopelagic zone, between 100 and 1000 m depth, contains up to 90% of marine vertebrate biomass. Mesopelagic fishes are key components of these ecosystems through their feeding interactions and pl...
Microbial electrosynthesis is a metabolic process in which extracellular electrons are utilized as the primary energy source for carbon fixation. While microbial electrosynthesis has been proposed as ...
Since the year 2000, oceanic research has seen a surge in data collection, with approximately 500,000 sets of measurements for a single variable (e.g., temperature) recorded annually. Yet, further adv...
The current study assess the degree of pollution in two harbors (Madaia and Saha) located in the southwestern Red Sea, Saudi Arabia with potential impacts on the intervening control coastline. This st...
While CO2 fixation by photo- and chemolithoautotrophs is a central process of the global carbon cycle, many organisms also incorporate inorganic carbon into organic compounds through anaplerotic carbo...
Protein persulfidation, a major post-translational modification mediated by the gaseous signaling molecule hydrogen sulfide (H₂S), regulates diverse physiological processes in eukaryotes and bacteria....
Global plastic production surpassed 436 million metric tonnes in 2023, with polyolefins, polyethylene and polypropylene, and polyesters, polyethylene terephthalate and polybutylene adipate terephthala...
Anaerobic oxidation of methane is a key process reducing methane emissions in oxygen-depleted marine environments such as deep-sea cold seeps. However, the stability and adaptability of microbial inte...
Bacterial adaptation to fluctuations in salinity includes the intracellular accumulation of organic compounds called compatible solutes (CS) such as the amino acid derivatives ectoine and 5-hydroxyect...
The deep ocean hosts autochthonous pressure-adapted microorganisms that are unique to this environment, as well as allochthonous pressure-sensitive members transported from shallow depths by vertical ...
Pollutant transport-reaction dynamics in aquatic systems often exhibit environmental memory, in which the present state depends on antecedent environmental conditions. This study develops a time-fract...
Eight depsidone derivatives (1-8), including three new compounds designated as westersidones A-C (1-3), were isolated from Westerdykella dispersa CS-734, an endozoic fungus derived from the deep-sea c...
Members of the bacterial family Endozoicomonadaceae are ubiquitous marine symbionts associated with diverse hosts, including corals, sponges, molluscs, and fishes. Despite their ecological pervasivene...
Microbacterium sp. HM-570 (16S rDNA sequence similarity 99.03% with the closest species Microbacterium lacus A5E-52T) is a sponge-associated bacterium isolated from deep-sea sponge, collected at the H...
Carbon fixation in marine ecosystems is a vital process that contributes to climate regulation, with ocean sediments playing a critical role in carbon sequestration. This process is driven by chemolit...
Although nitrogen fixation has recently been recognized in the Arctic Ocean, the biogeographical patterns of diazotrophs in this region remain poorly resolved, leaving a critical gap in understanding ...
Biological dinitrogen (N2) fixation sustains productivity in oligotrophic oceans and is now also thought to contribute substantially to the nitrogen supply in the warming Arctic. Here we demonstrate s...
A facultatively anaerobic, thermophilic, Gram-negative bacterium, strain sy37T, isolated from a deep-sea hydrothermal field and belonging to the candidate phylum WOR-3, was characterized in detail. Th...
By tracking the water mass histories of genetic samples, we investigated the biophysical dynamics shaping eukaryotic phytoplankton populations in a nutrient-deplete subtropical gyre, where cyanobacter...
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