Articles tagged with Archaea
Researchers have solved the mystery of marine nitrogen cycling, discovering that abundant nitrite oxidizing bacteria, Nitrospinae, are more active and efficient than previously thought. This reveals a key to their low abundance despite being crucial in the process.
A research team has identified essential proteins for archaeal motility and its structure, revealing a complex protein complex that enables archaella to swim. The discovery provides insights into the unique mechanism of archaeal movement, distinct from bacterial flagellum-based locomotion.
A French-Spanish team of scientists has confirmed the absence of microbial life in Dallol's multi-extreme ponds. The researchers used various methods to detect and classify microorganisms, including massive sequencing of genetic markers and chemical analysis.
Scientists have identified proteins that allow archaea to adapt to extreme water temperatures, providing a new method for estimating historic ocean temperatures. The discovery resolves uncertainties in the use of archaeal lipids as paleotemperature proxies.
Researchers at Indiana University found similar clustering of DNA in humans and archaeal chromosomes, which can affect gene expression. The discovery supports the use of archaea in studying human diseases related to errors in cellular gene expression.
A new study by Yale scientists identifies ancient prokaryotes with compartmentalized nuclei, shedding light on the origin of eukaryotic cells. They found ribosomal proteins in Archaea with NLS-motifs similar to those in eukaryotic species, suggesting a transitional phase.
Researchers discovered a nanoscale tungsten-microbial interface that enables the growth of heat-loving microorganisms. This finding has implications for the survivability of microorganisms in outer space and the potential use of tungsten as interstellar radiation shielding.
A new study reveals that Archaea, particularly the ammonia-oxidizing Thaumarchaea, dominate oxygen-poor deep-sea sediments due to their efficient metabolic system. This discovery sheds light on the importance of these microorganisms in the geochemical carbon and nitrogen cycles.
Researchers from UNIGE discovered that bacteria can thrive in the Dead Sea's sediments, surviving extreme conditions by feeding on ancient corpses. This finding has significant implications for searching for life on other planets and highlights the importance of understanding how microorganisms adapt to hostile environments.
Researchers have identified new key players in the methane cycle, discovering widespread metabolic pathways in archaea. The study found that different variants of methane metabolism are common in these microorganisms, suggesting a greater importance in global carbon balancing than previously thought.
Scientists studying archaeal microorganisms discovered essential genes critical for their growth, which may hold clues to the origin of eukaryotic cells. The research also found that archaea have unique surface structures that provide protection, contradicting previous beliefs.
Thaumarchaeota, a key player in the marine nitrogen cycle, can now be shown to utilize organic nitrogen sources like cyanate and urea. This discovery may explain their exceptional success in the oceans. The specific mechanisms behind these organisms' ability to use cyanate are still unknown.
New research reveals that marine ammonia oxidizing archaea can use cyanate and urea as alternative energy sources, enhancing their metabolic capabilities. This discovery sheds light on the remarkable adaptability of these microorganisms, which play a key role in the marine nitrogen cycle.
Stanford researchers discovered a protective lipid-linked cellular membrane in archaea, allowing them to thrive in highly acidic habitats. The discovery could provide new evidence about the evolution of life on Earth and shed light on molecular fossils.
University of Nebraska-Lincoln researchers found epigenetic traits in Sulfolobus solfataricus, a species of archaea that thrive in acidic environments. The discovery could accelerate the study of epigenetics in humans, potentially leading to new insights into trait inheritance and management.
Researchers found a compact CRISPR gene-editing machinery in ancient microbes, dubbed Cas14, which is smaller than other Cas proteins and has the potential to improve rapid diagnostic systems for infectious diseases, genetic mutations, and cancer. The discovery of Cas14 could provide a powerful addition to diagnostic tools.
Researchers found a new archetype of microbes living in Yellowstone National Park's thermal features that sheds light on the origin of life and the importance of iron in early Earth. The discovery is critical to understanding the universal tree of life and evolutionary history of the Earth.
Researchers from University of Groningen and Wageningen University created a micro-organism with a mixed membrane, contradicting the idea that this was an unstable mixture of lipids. The new life form was stable and grew at normal speed, supporting the hypothesis that a mixed membrane can be stable.
Researchers have identified the structure of a central protein used by archaea to determine direction, revealing significant differences from bacteria. This discovery sheds light on how archaea can adapt to extreme environments and colonize new habitats.
The study reveals that archaea use the same mechanism to regulate cell size as bacteria and budding yeast, with some variability in precision. The researchers found that Halobacterium salinarum controls its size by adding a constant volume between two events in the cell cycle.
Researchers have discovered fossil evidence of early Archaea life forms in Western Australia's Apex chert formation, dated to approximately 3.5 billion years ago. The findings suggest that methane cycling between producer and consumer organisms was a significant component of the early biosphere.
A team of researchers at Colorado State University has found striking parallels between how archaeal and eukaryotic cells package and store their genetic material. The breakthrough study revealed that archaea and eukaryotes share a common mechanism to compact, organize and structure their genomes.
Researchers have discovered new molecular fossils of archaea using forensic science methods, providing insight into the distribution and timeline of these ancient microorganisms. The study used gas chromatography-mass spectrometry to analyze sedimentary rock samples from southern China, revealing previously unknown fossils.
A study published in Science reveals that archaeal DNA folding is identical to the process found in more complex organisms, suggesting an early prototype for the eukaryotic nucleosome. This discovery sheds light on the evolutionary origins of genome folding and raises questions about the common ancestor of life.
A team of scientists has provided a new evolutionary tree for Archaea, resolving their deepest relationships. The study suggests that early Archaea likely used the Wood-Ljungdahl pathway to make energy, dating back over 3.5 billion years.
A new study from Uppsala University identifies a group of microorganisms, Asgard archaea, that provide insights into the evolutionary transition from simple to complex cells. The discovery sheds light on how eukaryotic cells evolved their complexity and suggests a possible mechanism for this process.
A study on Nitrososphaera viennensis reveals that specific genes and adaptations enable terrestrial archaeal ammonia oxidizers to thrive. The research provides insights into the energy metabolism of Archaea and its implications for agricultural soils and potential medical applications.
Researchers developed novel techniques to visualize uncultured microbial cell activity using BONCAT, a high-throughput and cost-effective approach. This method identifies individual active cells and clusters within microbial communities, providing insights into the ecological function of microorganisms.
Researchers propose that eukaryotic life arose through a gradual transfer of molecular machinery from archaea to bacteria. The discovery of Lokiarchaeum's genome reveals a complex organization, sparking debate about the earliest stages of eukaryogenesis.
George E. Fox, University of Houston professor and renowned biologist, has been awarded the university's highest faculty honor, the Esther Farfel Award. His groundbreaking research, including the discovery of the Archaea domain, has earned him recognition as one of the most meritorious scientists alive today.
An international team discovered how microorganisms, the Hadesarchaea, survive without oxygen and light, using carbon monoxide to gain energy. This finding expands our understanding of archaea that thrive in deep biosphere environments.
Researchers have found nano-wire connections between thermophilic AOM consortia, enabling energy transfer between archaea and sulphate reducers. These direct power wires facilitate the growth of sulphate reducers, providing insight into the anaerobic oxidation of methane.
Researchers discovered how Sulfolobus, a superbug that thrives in 80°C environments, transfers its genetic material to new cells during cell division. This finding sheds light on the origins of life and may lead to breakthroughs in understanding life beyond Earth.
Researchers found that sediment-entombed marine archaea's growth varies based on changes in ocean oxygen levels, affecting the accuracy of past ocean temperatures. This discovery highlights the need to consider oxygen levels when interpreting the TEX-86 index, a popular method for measuring ancient ocean temperatures.
Researchers discovered novel enzymes in microorganisms called archaea that break down organic matter into carbon dioxide, with implications for climate change. The study found that an increase in ocean temperature accelerates this process, releasing more carbon dioxide and methane into the atmosphere.
A new study has uncovered Lokiarchaeota, a missing link in the evolution of eukaryotes, revealing unexpected complexity in its genome. The discovery provides insights into the emergence of organelles and cellular structure in early eukaryotic cells.
Scientists have discovered a new virus infecting archaea beneath the ocean floor, which selectively targets one of its genes for mutation. The study also reveals that these microorganisms use a novel mechanism to accelerate genetic adaptation, targeting at least four distinct genes, and this process may be key to their survival.
A team of UC Santa Barbara scientists discovered a new virus that selectively targets one gene for mutation, allowing it to thrive in extreme environments. They also found that some archaea do the same, targeting multiple genes and accelerating genetic variation through guided mutation.
Researchers discovered a functional antibacterial gene in Archaea, which produces a broad-spectrum lysozyme enzyme. This enzyme kills certain species of bacteria, including those resistant to current antibiotics, and could lead to new antibacterial drug development.
Researchers at UCL used mathematical modeling to find that life's Last Universal Common Ancestor (LUCA) had a 'leaky' membrane, enabling it to harness energy from its surroundings. This discovery answers two big questions in biology: how cells harvest energy and why bacteria and archaea have different cell membranes.
University of Washington researchers used new tools to measure and track B-12 vitamins in the ocean, finding that marine archaea can supply this essential vitamin. The results show that B-12 is present in small amounts in all water samples, with low concentrations indicating potential deficiency among tiny marine algae.
Researchers found that viruses like HIV and Ebola hijack the same protein complexes as archaea and humans, using ESCRT machinery for cell division. The study presents a new model system to understand virus-host interactions.
A German-American research team identified a sensor protein called MsmS in the microorganism Methanosarcina acetivorans. MsmS may serve as a 'food sensor' to detect energy sources, similar to bacteria but with potential differences in signal transduction systems.
A study by Karen Lloyd reveals that archaea slowly eat tiny bits of protein, implications for understanding bare minimum conditions to support life. The finding provides clues about the absolute minimum conditions required to sustain life and the global carbon cycle.
Scientists have retrieved four seabed archaeal cells and mapped their genome, revealing they live on protein degradation. This breakthrough opens up new knowledge for microbiologists, allowing them to study individual microorganisms directly from nature.
University of Georgia researchers discovered essential genes in archaea that shed light on the history of microorganisms and the origins of life. The study found unique DNA synthesis systems, essential genes necessary for methane production, and insights into cell formation.
Researchers from Berkeley Lab and Max Planck Institute analyze unique microbial motor, revealing a dynamic play among its components. The study found that the archaellum consists of two parts, with a globular C terminal domain connected to a more variable N terminal domain.
Scientists unveil the biochemistry of a unique microbial community living together in a cold sulfur spring, revealing symbiotic relationships between archaea and bacteria. The study uses synchrotron infrared to identify metabolic activities and protein structures, shedding light on a previously unknown lifestyle.
A recent study published in Applied and Environmental Microbiology reveals that transpacific dust plumes carry thousands of unique microbial species to North America. The researchers detected archaea at high altitudes, which has potential applications in biotechnology and medicine.
A team of scientists from Oregon State University has documented for the first time that animals can consume Archaea, a type of single-celled microorganism. This finding adds a wrinkle to scientific understanding of greenhouse gas cycles and opens up new avenues of research into the roles of Archaea in ecosystems.
Researchers have elucidated the crystal structure of Alba2-DNA complex in archaea, revealing a hollow pipe-like structure that compacts DNA. This discovery provides valuable clues into the evolution of chromatin structure and its connection to diseases.
Researchers found that the polyphosphate storage site represents the first known universal organelle, present in bacteria, archaea, and eukaryotes. This discovery challenges traditional definitions of bacterial organisms, suggesting LUCA was more complex than previously thought.
Researchers found a microbe in a Nevada hot spring that can digest cellulose at temperatures near boiling point, producing a record-breaking hyperthermophilic cellulase. The enzyme is the most heat-tolerant found in any cellulose-digesting microbe, with applications for biofuels production and industrial processes.
A type of Archaea, Methanosprillum hungatei, has been found to contain highly efficient energy-storage structures that can store 100-fold more energy than the entire cell. These granules could potentially be used as a chemical battery for engineered synthetic cells.
Researchers at Caltech have discovered that methane-consuming archaea are actively fixing nitrogen and sharing it with their bacterial neighbors. This finding may help explain the discrepancy between known sources and sinks of fixed nitrogen in the global nitrogen cycle.
New research reveals that archaea, tiny microorganisms, are capable of digesting ammonia and turning it into nitrate, outcompeting phytoplankton for energy. This finding has significant implications for ocean ecosystems, soil environments, and global climate models.
Scientists at the University of Nottingham discovered that an archaeon can resist DNA damage even with mutated enzymes. This finding may hold key to understanding how cancer cells behave and why they are more prone to mutations.
Researchers discovered a new mechanism for cell division in Sulfolobus acidocaldarius, revealing three proteins that form a band-like structure over the cell equator. This unique process could lead to new insights into ESCRT proteins and their role in protein transport within cells.
Researchers found a unique microorganism, Desulforudis audaxviator, living in complete isolation with no sunlight, oxygen, and extreme heat. The bacterium survives by harnessing energy from hydrogen and sulfate produced by radioactive decay of uranium, and has a remarkable genome with 2,157 protein-coding genes.
Researchers discovered 90 billion tons of microbial organisms living in the deep biosphere, with Archaea making up 87% of the biomass. The microorganisms thrive in extreme conditions, such as high pressure and low energy supply.