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Archaea[Mesh] AND Archae*[Title]: Latest results from PubMed
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Posts: 10
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Diversity and evolution of archaeal immune strategies
Published: March 14, 2026 10:00
Archaeal antiviral defense systems remain poorly characterized despite recent advances in understanding prokaryotic immunity. Here, we analyze 7747 archaeal genomes, the largest and most diverse dataset to date, revealing a striking disparity in defense…
Updated Inventory and Refined Classification of the Ferredoxin Family in Archaeplastida
Published: March 13, 2026 10:00
Ferredoxins (FDXs) are ubiquitous proteins that bind iron-sulfur (Fe-S) clusters and usually catalyse electron transfer reactions. In eukaryotic photosynthetic organisms, a relatively high number of [2Fe-2S] cluster-containing FDXs is present in plastids…
Prediction of eukaryotic cellular complexity in Asgard archaea using structural modelling
Published: March 5, 2026 11:00
Asgard archaea played a key role in the origin of the eukaryotic cell, with extant genomes encoding relatives of diverse eukaryotic signature proteins (ESPs) involved in cellular organization. However, their often punctuated distribution and the absence of…
Ocean warming enhances iron use efficiencies of marine ammonia-oxidizing archaea
Published: March 2, 2026 11:00
Ammonia-oxidizing archaea (AOA) are among the most abundant microorganisms in the ocean, playing a fundamental role in the marine nitrogen cycle. Although temperature and trace metal availability each individually influence the growth and activity of…
A novel North Sea ammonia-oxidizing archaeon Nitrosarchaeum marinum leverages a high abundance of transport systems to grow over a wide salinity range
Published: February 26, 2026 11:00
Ammonia-oxidizing archaea (AOA) are among the most abundant micro-organisms in the biosphere. They are crucial for the global nitrogen cycle through catalyzing the oxidation of ammonia to nitrite. The biochemistry, physiology, and mechanisms underlying the…
Machine learning-based paleobathymetric reconstructions using archaeal lipid biomarkers
Published: February 20, 2026 11:00
Accurate reconstruction of paleo-ocean depths is essential for understanding the interplay between tectonic evolution and global climate change, yet existing methods face substantial limitations. Here, we assess the potential of glycerol dialkyl glycerol…
Turnover and Nestedness Explained Differently on Soil Fungi, Bacteria, and Archaea Community Beta Diversities After Nitrogen Addition
Published: February 18, 2026 11:00
Soil microbes are sensitive to nitrogen enrichment, but the mechanisms shaping beta diversity along and within nitrogen gradients may differ among microbial communities. In a seven-year nitrogen addition experiment in the Qinghai-Tibet alpine meadow, we…
Biochemical characterisation of the 4-alpha-glucanotransferase from the hyperthermophilic archaeon Pyrobaculum arsenaticum and its formation of high-amylose resistant starch
Published: February 12, 2026 11:00
High-amylose starch (HAS) is gaining attention in biotechnology for its thermal stability, structural resilience and health benefits. Its dense crystalline structure hinders hydrolysis by human gut enzymes, making it a promising source of type 2 resistant…
Genomic Insights into Bacterioruberin and Halorhodopsin Biosynthetic Genes in 12 Halophilic Archaea Isolated from Korean Solar Salterns
Published: February 11, 2026 11:00
Halophilic archaea are extremophilic microorganisms uniquely adapted to thrive in hypersaline environments such as solar salterns, saline lakes, and brines. Their ability to survive under high-salt conditions is closely associated with the production of…
Archaeal G-quadruplexes: a novel model for understanding unusual DNA/RNA structures across the tree of life
Published: February 5, 2026 11:00
Archaea, a domain of microorganisms found in diverse environments, including the human microbiome, represent the closest known prokaryotic relatives of eukaryotes. This phylogenetic proximity positions them as a relevant model for investigating the…