microbe 2 2

Tag: "microbe" at biology news

Sex: It's costly but worth it. Just ask a microbe

...crobes performed efficiently and prolifically. The microbe couples, however, were slower to reproduce. But Xu also found that a fair bit of fluffing and flirting goes on when mixed pairs slide into a petri dish, and the results can be detrimental to their fitness. "We noticed that mating stunted their asexu...

Supersized 'island' of resistance genes discovered in an infectious bacterium

...ic episode, we found the complete genome ID of the microbe involved and developed a better understanding of what to expect for the future, in terms of new antibiotic resistance," Claverie said. "This work will guide a future international effort on identifying all major A. baumannii resistant strains throug...

Scientists seek to unwrap the sweet mystery of the sugar coat on bacteria

... proteins called lectins. The lectin dots act like microbe Velcro. Bacteria with a surface sugar that matches a specific lectin stick to that lectin dot. Because the bacteria are fluorescently labeled, Mahal and her colleagues can read the patterns of glowing dots and determine which sugars coat the bacteria...

Earth Rx: A microbial biotechnology prescription for global environmental health

...as much as possible, particularly having different microbe to perform the same role. "It usually isn't just one organism, a superbug or magic bullet," says Rittmann. "Instead, the best results require a community of microorganisms." Rittmann is motivated by the huge benefits that environmental biotechnolog...

Environmental metagenomics diagnosing extreme environments, tapping opportunities for clean energy

...tes in our tank, but if we can harness the termite microbe enzymes that breakdown lignocellulose and make hydrogen, we may end up with a commercially viable process," says Rubin. ...

UW scientists unravel critical genetic puzzle for flu virus replication

...e genes and inner workings of flu viruses, how the microbe organizes its genetic contents to seed future generations of viruses has remained an enduring mystery of biology. Now, with the help of a long-studied flu virus, an electron microscope and a novel idea of how the virus aligns segments of RNA as it p...

Wisconsin scientists discover a master key to microbes' pathogenic lifestyles

...reated, however, it can be fatal. What's more, the microbe can lay dormant in an infected host for years. "All of these organisms exhibit this property of latency," says Klein. "They can remain dormant until immune defenses are lowered. It's a significant medical problem in endemic regions." The discovery ...

Poison + water = hydrogen. New microbial genome shows how

...be, but it is also the preferred environment for a microbe known as Carboxydothermus hydrogenoformans . I...g on the Russian volcanic island of Kunashir, this microbe lives almost entirely on carbon monoxide. While consuming this normally poisonous gas, the microbe m...

Plants, too, have ways to manage freeloaders

... Only rarely did they find more than one strain of microbe in a nodule, though a single plant might nodulate ... for nodules," Simms said. "Is it the plant or the microbe that determines this? Have we bred out of crop plants the ability to choose their root bacteria?" ...

Microbes under Greenland Ice may be preview of what scientists find under Mars' surface

...t they would occur in a concentration of about one microbe per cubic centimeter at a depth of several hundred meters, where the temperature - about zero degrees Celsius (32 degrees Fahrenheit) or a bit warmer - would allow just enough metabolism for them to keep alive, just as the microbes in the Greenland i...

ORNL leading effort to help harness power of Shewanella

Tremendous amounts of data being generated about a microbe adept at bioremediation will be more efficiently o...ven strains of the Shewanella, a relatively common microbe with diverse capabilities. Working with the Joint Genome Institute, researchers hope to sequence the...

How does Mycobacterium tuberculosis infect the lung?

...is predominantly a lung disease. It is caused by a microbe called Mycobacterium tuberculosis which infects lung cells, but it is still not clear how exactly this happens. Ludovic Tailleux, Olivier Neyrolles, and colleagues (from the Pasteur Institute, in collaboration with the Necker and Saint-Louis Hospital...

Scientists map one of biology's critical light-sensing structures

... revealed by the Wisconsin team was derived from a microbe known as Deinococcus radiodurans, a bacterium renowned for its tolerance to ionizing radiation. It was only within the last eight years that scientists from Vierstra's and other labs discovered that, like plants, some bacteria harbor phytochromes. Th...

Dangerous tricksters: Some bacterie use immune cells to reproduce

...substances typical of bacteria, which surround the microbe like a cloud. As soon as the immune cells have det...sosomes, merge with the phagosome and confront the microbe with highly reactive digestive enzymes. A few hours after the first alarm bells have rung there is n...

Give thanks for the cranberry, say dental researchers

...o tooth surfaces. Stickiness is everything for the microbe Streptococcus mutans, which creates most cavities by eating sugars and then excreting acids that cause dental decay. "Scientists believe that one of the main ways that cranberries prevent urinary tract infections is by inhibiting the adherence of pa...

NC State researchers redesign life for Mars and beyond

... furiosus is one of Earth's earliest life forms, a microbe that can survive in extreme temperatures. It grows and dwells in underwater sea volcanoes where temperatures reach more than 100 degrees Celsius, or that of boiling water. Occasionally, the organism is spewed out into near freezing deep-sea water. T...

Gene discovery sheds light on causes of rare disease, cancer

...d proteins. Once it has safely entered a cell, the microbe can replicate and continue the process of infectio...hagocytosis. Specialized cells engulf the invading microbe and destroy it. Scientists long believed that cells use a second process, called endocytosis, to de...

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

...d proteins. Once it has safely entered a cell, the microbe can replicate and continue the process of infectio...hagocytosis. Specialized cells engulf the invading microbe and destroy it. Scientists long believed that cells use a second process, called endocytosis, to de...

Say what? Bacterial conversation stoppers

... to face challenges too daunting for an individual microbe going it alone. Swelling populations trigger their quorum-sensing apparatuses, which have different effects in different types of bacteria. One species might respond by releasing a toxin, while another might cut loose from a biofilm and move on to an...

Bacteria use host's immune response to their competitive advantage

...trate how antibiotics and vaccines that target one microbe might inadvertently alter the competitive interactions among other species present. ### Citation: Lysenko ES, Ratner AJ, Nelson AL, Weiser JN (2005) The role of innate immune responses in the outcome of interspecies competition for colonization of ...

1 2 3