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News articles about "organisms"

Co-opting bacterial immune system to turn off specific genes

Researchers from North Carolina State University have developed a technique that co opts an immune system already present in bacteria and archaea to turn off specific genes or sets of genes creating a powerful tool ... - Read More

Breathing sand: New measurement technique detects oxygen supply to bottom of North Sea

New analytical methods show for the first time how the permeable sandy sediment at the bottom of the North Sea is supplied with oxygen and which factors determine the exchange Because the metabolic rate is ... - Read More

Ocean's living carbon pumps: When viruses attack giant algal blooms, global carbon cycles are affected

When we talk about global carbon fixation pumping carbon out of the atmosphere and fixing it into organic molecules by photosynthesis proper measurement is key to understanding this process By some estimates almost half of ... - Read More

Microfossils reveal warm oceans had less oxygen

Researchers in Syracuse University's College of Arts and Sciences are pairing chemical analyses with micropaleontology the study of tiny fossilized organisms to better understand how global marine life was affected by a rapid warming event ... - Read More

Discovery of cellular snooze button advances cancer, biofuel research

The discovery of a cellular snooze button has allowed a team of Michigan State University scientists to potentially improve biofuel production and offer insight on the early stages of cancer The discovery that the protein ... - Read More

Protein Found in Insect Blood That Helps Power Pests' Immune Responses

along a larger carbohydrate molecule that makes a cell wall Their work identified the spatial orientation of the GRP proteins in the cluster and showed that the protein carbohydrate complexes stimulate an immune response in ... - Read More

Physics determined ammonite shell shape

Ammonites are a group of extinct cephalopod mollusks with ribbed spiral shells They are exceptionally diverse and well known to fossil lovers Régis Chirat researcher at the Laboratoire de Géologie de Lyon Terre Planètes et ... - Read More

Making oxygen before life: Oxygen can form directly from carbon dioxide in upper atmosphere

About one fifth of Earth's atmosphere is oxygen pumped out by green plants as a result of photosynthesis and used by most living things on the planet to keep our metabolisms running But before the ... - Read More

Bacteria may have ability to reduce impact of diazepam on UK river environments

The natural photo degradation of diazepam valium and similar medicines followed by bacterial breakdown may reduce their potentially harmful impact on the UK's freshwater environment a team of researchers has said Diazepam used to treat ... - Read More

Creepy crawlers play key role in structure of grasslands

When asked to describe a forest or a meadow most people would probably begin with the plants the species diversity or the color of the foliage They probably wouldn't pay much attention to the animals ... - Read More

Boosting biofuel: Yeast made to tolerate high levels of ethanol, making them more productive

Yeast are commonly used to transform corn and other plant materials into biofuels such as ethanol However large concentrations of ethanol can be toxic to yeast which has limited the production capacity of many yeast ... - Read More

Nanoparticles accumulate quickly in wetlands: Aquatic food chains might be harmed by molecules 'piggybacking' on carbon nanoparticles

A Duke University team has found that nanoparticles called single walled carbon nanotubes accumulate quickly in the bottom sediments of an experimental wetland setting an action they say could indirectly damage the aquatic food chain ... - Read More

ORNL Team First to Fully Sequence Bacterial Genome Important to Fuel and Chemical Production

Katie Elyce Jones ### Image caption Sagar Utturkar coauthor of high rating biotechnology paper in the team’s Oak Ridge National Laboratory lab Permalink to this article Comment Share ... - Read More

Unlocking Enzyme Synthesis of Rare Sugars to Create Drugs with Fewer Side Effects

Released 29 Sep 2014 11 00 AM EDTSource Newsroom Oak Ridge National Laboratory more news from this source Contact Information Available for logged in reporters only Sep 30 2014 A team led by the U ... - Read More

Researchers Study Vital 'On/Off Switches' That Control When Bacteria Turn Deadly

No matter how many times it’s demonstrated it’s still hard to envision bacteria as social communicating creatures But by using a signaling system called “quorum sensing ” these single celled organisms radically alter their behavior ... - Read More

X-rays unlock a protein's SWEET side

Sugar is a vital source of energy for both plants and animals alike Understanding just how sugar makes its way into the cell could lead to the design of better drugs for diabetes patients and ... - Read More

Sharks in acidic waters avoid smell of food

The increasing acidification of ocean waters caused by rising atmospheric carbon dioxide levels could rob sharks of their ability to sense the smell of food a new study suggests Elevated carbon dioxide levels impaired the ... - Read More

Carbon dioxide concentration surges: Record greenhouse gas levels impact atmosphere and oceans, WMO report finds

The amount of greenhouse gases in the atmosphere reached a new record high in 2013 propelled by a surge in levels of carbon dioxide This is according to the World Meteorological Organization's annual Greenhouse Gas ... - Read More

'Pick 'n' Mix' chemistry to grow cultures of bioactive molecules

Chemists at ETH Zürich and ITbM Nagoya University have developed a new method to build large libraries of bioactive molecules which can be used directly for biological assays by simply mixing a small number of ... - Read More

Nuclear waste eaters: Scientists discover hazardous waste-eating bacteria

Tiny single cell organisms discovered living underground could help with the problem of nuclear waste disposal say researchers involved in a study at The University of Manchester Although bacteria with waste eating properties have been ... - Read More
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