Articles tagged with Archaea
A new study reveals that transfer RNA (tRNA) preserves the earliest events of evolutionary history in its structure. The researchers used detailed data to reconstruct the tRNA family tree and determine the order of emergence for viruses, archaea, bacteria, and eukarya.
Scientists have found evidence that archaea and other life domains coexisted for at least 2.7 billion years, challenging current understanding of the history of life on Earth. The discovery was made in a deep Canadian gold mine, where oily lipid remains of ancient archaea were analyzed using advanced techniques.
Archaea use ammonia as their primary energy source in hot springs, a metabolic mode not previously found. This discovery sheds light on the earliest stages of evolution, suggesting crenarchaeota thrive in both extreme and low-temperature environments.
Researchers at UC Berkeley used shotgun sequencing to identify new microbes living in mine slime, including three previously unknown Archaea that are the smallest organisms ever found. These nanoorganisms have the potential to thrive on other planets, such as Mars.
Researchers discovered a heat-loving archaeon capable of fixing nitrogen at 92 degrees Celsius, suggesting that life may have originated in extreme environments. This finding expands our understanding of the evolution of nitrogen fixation and its potential for life beyond Earth.
A recent study has found that crenarchaeota, a group of single-celled microbes, are the Earth's most abundant land-based creatures capable of oxidizing ammonia. This discovery challenges the long-held belief that bacteria were solely responsible for nitrogen cycles.
Researchers from Max Planck Institute successfully sequenced the genome of a methane-producing Rice Cluster I Archaeon, revealing unique enzymatic mechanisms that enable them to thrive in oxygen-rich environments. This breakthrough could pave the way for developing methods to monitor and potentially reduce methane emissions from floode...
UGA researchers have found evidence that low-temperature archaea may have evolved from moderate-temperature environments, contradicting current theories. The discovery sheds light on the evolution of Crenarchaeota and their role in fixing carbon dioxide, with implications for understanding global warming.
Researchers found a sizeable and active archaeal community in deep sediment layers using energy from breaking down methane molecules. These microbes live on the slow side, requiring less energy to maintain and taking longer to divide than expected.
The study of Natronomonas pharaonis reveals its unique ability to thrive in extremely alkaline and salty environments. The organism's genome encodes the synthesis of 2,843 proteins, which are stable even at high salt concentrations.
Scientists successfully cultivated a marine bacterium, N. maritimus, which is believed to play a significant role in the global carbon and nitrogen cycles. This breakthrough, supported by the National Science Foundation, provides new insights into the mechanisms of this microorganism and its relationship with other microbes.
Jaap Sinninghe Damsté is awarded the Treibs medal for his research into marine sediments and the discovery of anammox bacteria, which has major consequences for the nitrogen cycle. He uses organic molecules to reconstruct life and climate in previous epochs.
A Stanford study reveals a connection between archaea abundance and gum disease severity, affecting about one-third of Americans. The research found that more than one-third of patients with chronic periodontitis harbored archaea in their diseased subgingival spaces but not elsewhere.
Researchers found two primitive protoglobulins in ancient archaea species, offering clues to the evolution of oxygen-based life. The discovery may aid in the search for future blood substitutes by understanding how transport proteins evolved to bind and release oxygen.
Researchers used a new method to determine seawater temperatures in the distant past and found that tropical oceans were 5-8 degrees higher than today. The findings concurs with climate models indicating warmer oceans due to high carbon dioxide concentrations.
Researchers have found that a species of micro-organism, Sulfolobus, has genetic differences between samples from the US, Eastern Russia, and Iceland. This challenges the long-held view that micro-organisms do not differ by geographic location.
The consortium aims to reveal secrets of the Archaea domain, a grouping thought to include organisms with ancient evolutionary lineages. Researchers will study the structure and function of genes and proteins in this domain.
Virginia Tech biochemist White identifies 200 genes responsible for coenzyme formation in Methanococcus jannaschi, an ancient Archaea bacteria. The discovery sheds new light on the evolution of metabolic processes in these unique organisms.
A UMass-led international research group has successfully sequenced the genome of Halobacterium species NRC-1, a salt-loving microorganism. The achievement promises to reveal insights into cell regulation, gene expression, and potential biomedical applications, including vaccine development and antibiotic design.
Scientists have discovered archaea, an ancient branch of microbial life that can thrive in extreme environments like volcanic vents and acidic hot springs. These microorganisms produce enzymes that are stable under harsh conditions, offering potential benefits for environmental cleanup, pollution prevention, and energy production.