environments 2 6

Tag: "environments" at biology news

Gap-climbing fruit flies reveal components of goal-driven behaviors

...re faced with everyday obstacles in their physical environments and must engage appropriate decision-making and motor skills to deal with them. Navigating these obstacles can involve highly complex events in mammals and other vertebrates, but in new work, researchers have employed an ingenious obstacle-based syst...

Gifts from the sea

...t of tools used to test humans, drugs, and sterile environments for toxins. Skate (Raja erinacea): Human retinas have two kinds of light-sensing cells: rods and cones. Skate retinas have only rods--yet they can still sense light. MBL scientists have studied skate retinas to learn how eyes adapt to light changes,...

Fluorescing lab worms signal longer life spans

...enetically identical organisms raised in identical environments still age at different rates," said Rea. "It suggests that chance alterations in how stress-response mechanisms are maintained dictate how individual organisms respond to specific environmental insults." Carried out using about 100,000 popular labor...

Researchers Discover That Microbes Can Produce Miniature Electrical Wires

...sults help us understand how Geobacter can live in environments that lack oxygen and carry out such unique phenomena as removing organic and metal pollution from groundwater,?Lovley said. Geobacter can live in the absence of oxygen because of its ability to transfer electrons outside the cell onto iron minerals, ...

Chickadees can help humans get their bearings

...e such problems and could mean that by varying the environments that we encounter early in life, we could broaden and hone our spatial navigation abilities," said Dr. Sturdy and Dr. Marcia Spetch, who supervised the work conducted by graduate students Emily Gray and Laurie Bloomfield. The findings also suggest t...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...her organisms and when their physical and chemical environments are perturbed." Coauthors with Banfield, Hettich and Thelen are post-doctoral fellow Rachna J. Ram, graduate student Gene W. Tyson and researcher Brett J. Baker of UC Berkeley, post-doctoral scientist Nathan VerBerkmoes of ORNL, Robert C. Blake III ...

IMF Launches World’s First DNA Database for Myeloma Patients

... On the other hand, we found that in predator-free environments gonopodia size was larger, as there is minimal cos...ments. He found that mosquitofish in predator-free environments had gonopodia 15 percent larger than those in predator-laden environments. That's a heritable trait ...

Certain fish have a special mating preference

... On the other hand, we found that in predator-free environments gonopodia size was larger, as there is minimal cos...ments. He found that mosquitofish in predator-free environments had gonopodia 15 percent larger than those in predator-laden environments. That's a heritable trait ...

Map of life on Earth could be used on Mars

...anobacterial organisms diverging from low-salinity environments into marine environments over time. "We have the ancestral Archeae ?it diverges into two major lineages, the Crenarchaeota a...

Disabling gene defuses rheumatoid arthritis in mice

...cells when they go into the hazardous inflammatory environments they create," Peng notes. "They need ways to keep themselves alive, and Foxo3a is one of those ways." Peng's group is currently trying to discern more details of Foxo3a's activities in neutrophils, including the pathways the gene activates to block ...

Innovative coating could give medical implants a longer life

...dioxide (a material common in medical implants) in environments that simulated physiologic conditions with fresh serum and cells. The coating anchored itself firmly to the surface and demonstrated excellent resistance to proteins and cells during the five-month experiment. For the same reason the coating is cell ...

DOE JGI launches IMG public online microbial genome data clearinghouse

... scientists to tap the rich diversity of microbial environments and harness the possibilities that they hold for addressing challenges in environmental cleanup, medicine, agriculture, industrial processes, and alternative energy production." The DOE JGI is currently producing nearly one-quarter of the number of ...

Advancements In Genomics Foster Deep Sea Discoveries

... calculating possibilities for life in pressurized environments elsewhere in the solar system. “These organisms live in a world that is physically very different from the skin of the planet in which we humans reside,?said Bartlett, who is part of the Scripps Marine Biology Research Division. “They live in a worl...

Study reveals new technique for fingerprinting environmental samples

...esearch. "These fingerprints can be used to reveal environments under stress as well as signal progress in remedia...lar functions provide DNA clues to features of the environments from where the samples were taken. Importantly the DNA clues were easy to find despite the vast numb...

New lab technique identifies high levels of pathogens in therapy pool

...y capture and culture microorganisms found in such environments to assess the number of pathogen species, an approach that misses many airborne bacteria that are difficult to grow in a lab environment. The new approach allowed researchers to survey more than 1,300 ribosomal RNA genes from different bacteria and f...

A human parasite with a streamlined mitochondrion

...ca, the causal agent of amoebic dysentery--live in environments that are too oxygen poor to support this process. Nevertheless, Entamoeba still contains a somewhat mysterious organelle, called a mitosome, that is evolutionarily derived from mitochondria. As reported by researchers this week, the mitosome can repr...

Vampire bats keep out of trouble by running

...tion of large herds of livestock into their native environments of Central and South America, these bats don't need to hurry to catch the cattle from which they extract perhaps a tablespoon of blood at a time for sustenance. They feed while their prey are sleeping, spending perhaps 10 minutes drinking from the sm...

LUCA technologies confirms real-time methane generation

...athways. Clostridia frequently thrive in anaerobic environments and many species are known for their heat tolerance. Thermatoga microorganisms are known to play a role in the anaerobic oxidation of hydrocarbons to alcohols, organic acids and carbon dioxide. Thermatoga also thrive in high temperature environments,...

Wiley announces publication of Databasing the Brain

...e in order to build databases, tools, and workflow environments in neuroscience * An analysis of neuronal systems in a quantitative context * Specific applications in neuroscience that reflect present and future information infrastructures "Databasing the Brain" is an invaluable resource for students en...

Family trees of ancient bacteria reveal evolutionary moves

...ent ?after all, they are still important to marine environments today, so they must always have been," Blank said. "When Cyanobacteria started to appear, there was no ozone shield, so UV light would have killed most things. They either had to have come up with ways to deal with the UV light ?and there is evidence...

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