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Tag: "organisms" at biology news

Fluorescing lab worms signal longer life spans

...eered to illuminate stress levels, implying living organisms have "hidden physiological states" that dictate th...ress protein that is present in most multicellular organisms as a monitor of cellular health. The eyelash-sized, translucent worms that fluoresced the brightest ...

Gifts from the sea

...ilization. Here are some of the locally available organisms MBL researchers study and why: Long-finned, or Wo... dystrophy. For a list of MBL researchers and the organisms they use, or for further information on summer research and education at the MBL, please contact Gin...

Microscopic brain imaging in the palm of your hand

... cellular behavior gives rise to the properties of organisms as a whole. For instance, the nerve cells of the hippocampus region of the brain give rise to important mental processes such as learning and memory. Imaging living cells below the surface has been difficult to accomplish using conventional techniqu...

Researchers track down cause of a disfiguring bone disorder

...logical role, or they would have been discarded as organisms evolved. By introducing the conserved segments into cells similar to osteoblasts (bone-forming cells), the team found that a 250-base-pair conserved region named ECR5 was able to drive SOST expression. "This study represents a clear and unambiguous ...

Study casts doubt on 'Snowball Earth' theory

...lipid biomarker techniques to identify prehistoric organisms based on the fatty remains of their cell membranes... microbial ecosystem," including photosynthesizing organisms that could not have existed under a thick layer of ice. "If there was ice, it had to have been thin...

Researchers uncover E. coli's defense mechanism

...ods were prepared. Infections from either of these organisms can cause diarrhea, abdominal cramps and sometimes more serious illnesses that require hospitalization. E.coli doesn't respond well to antibiotics, while Salmonella has developed several drug-resistant strains. Learning how the bacteria handle the bo...

Public collections of DNA and RNA sequence reach 100 gigabases

...In the late 1970s, as researchers started to study organisms at the level of their genetic code, several groups began to explore the possibility of developing a public repository for sequence information. In the early 1980s this led to the launch of two databases: the first was the EMBL Data Library, based at ...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...r of the American Geophysical Union. "Seeing these organisms on the ocean bottom--it's like lifting the carpet off the floor and finding a layer that you never knew was there." Domack suggests the strong possibility that new species of marine life may be uncovered in continuing analyses of the area as ecosyst...

Hide and seek: Researchers discover a new way for infectious bacteria to enter cells

... immune system. They believe that other infectious organisms may use the same mechanism. The Listeria bacterium, found in soil and water, can be transmitted to humans via undercooked and unpasteurized food, causing flu-like symptoms or gastrointestinal distress. For individuals with weakened immune systems...

New technique rapidly detects illness-causing bacteria

...o compares a target site with sequences from other organisms to make sure they don't overlap, which could lead to a misdiagnosis. "You want to be sure it doesn't detect another organism that shares similar properties," said Nugen. The study was funded by the National Institutes of Health. Along with Baeumne...

Gene discovery sheds light on causes of rare disease, cancer

... immune system. They believe that other infectious organisms may use the same mechanism. The Listeria bacterium, found in soil and water, can be transmitted to humans via undercooked and unpasteurized food, causing flu-like symptoms or gastrointestinal distress. For individuals with weakened immune systems...

Shark skin saves naval industry money

... help ships sailing smoothly. The growth of marine organisms such as barnacles on ship hulls is a major cause o...-clean´, and a speed of 4-5 knots would remove all organisms attached with little adhesion. Until recently, paints containing a biocide were used to prevent gro...

Experts discuss use of human stem cells in ape and monkey brains

... help ships sailing smoothly. The growth of marine organisms such as barnacles on ship hulls is a major cause o...-clean´, and a speed of 4-5 knots would remove all organisms attached with little adhesion. Until recently, paints containing a biocide were used to prevent gro...

Ethical guidelines suggested for research that would put human stem cells in primates

... help ships sailing smoothly. The growth of marine organisms such as barnacles on ship hulls is a major cause o...-clean´, and a speed of 4-5 knots would remove all organisms attached with little adhesion. Until recently, paints containing a biocide were used to prevent gro...

Structures of marine toxins provide insight into their effectiveness as cancer drugs

...nts." The toxins, which are produced naturally by organisms that exist symbiotically on deep-sea sponges, work by disrupting the activity of actin, an abundant protein that gives structure to eukaryotic cells. "Actin forms long chains, or filaments, that are essential for cellular locomotion, division and gr...

Three deadly parasite genomes sequenced

... help ships sailing smoothly. The growth of marine organisms such as barnacles on ship hulls is a major cause o...-clean´, and a speed of 4-5 knots would remove all organisms attached with little adhesion. Until recently, paints containing a biocide were used to prevent gro...

Researchers at UGA provide first look at protein expression in Chagas disease-causing parasites

... help ships sailing smoothly. The growth of marine organisms such as barnacles on ship hulls is a major cause o...-clean´, and a speed of 4-5 knots would remove all organisms attached with little adhesion. Until recently, paints containing a biocide were used to prevent gro...

'Sinkers' provide missing piece in deep-sea puzzle

...r of possible additional food sources for deep-sea organisms that might make up for the lack of food observed i...am had been conducting monthly surveys of midwater organisms at ten different depths in Monterey Bay using MBARI's ROV Ventana. As part of their study of sinkers...

Marine bacterium suspected to play role in global carbon and nitrogen cycles

...ubsequent efforts to grow various samples of these organisms led to this cultivation of N. maritimus, or "dwarf belonging to the sea," by Stahl and scientists at the Woods Hole Oceanographic Institution. They report their work in the Sept. 22 issue of the journal Nature. As the true range and relationship ...

New bioinformatics technique for systematically analyzing key regions in DNA that help control gene activity

... vertebrates," Fidelis said. The growing number of organisms whose genomes have been sequenced has generated a wealth of DNA sequence information that could provide the raw material for analysis. ...

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