Daily non-political popular news in brief.
Different strategies underlie the ecology of microbial invasions
10-23-2006 · EurekAlert!Infectious disease can play a key role in mediating the outcome of competition between rival groups, as seen in the effects of disease-bearing conquistadors in the New World -- or, on a much smaller ecological scale, the ability of bacteria to spread their viruses to competing bacteria. In a new study, researchers have compared two different general ways in which bacteria compete with one another, and they have found that each strategy seems to be particularly effective under different ecological circumstances.
Read more »
Keywords: different, strategies, underlie, ecology, microbial, invasions, strategy, invasion
« Previous | Next »
Similar news on "Different strategies underlie the ecology of microbial invasions":
- Homeless cells find temporary lodging -- and their demise
11-29-2007 · EurekAlert!
When human cells wander in suspension, free of their normal attachments, many of them launch invasions into their neighbors. These "homeless" cells bore into other cells and hang out inside, where they either die or exit, apparently unscathed. This bizarre process, which the researchers term entosis, appears to underlie a natural process involving tumor cells inhabiting other tumor cells that pathologists have observed for decades.
Similar news · Read more »
- Wildebeest or malaria parasite -- same rules determine number of offspring
01-14-2008 · EurekAlert!
New research published today (Jan. 15) in Proceedings of the National Academy of Sciences by a Biotechnology and Biological Sciences Research Council Fellow shows that the same community ecology principles that determine how different animal species on the savannah affect each other's population sizes through competition for food and hunting by predators also affect parasite species interacting within the microcosm of a single host. The research has implications for treating many human and animal infections.
Similar news · Read more »
- DOE JGI releases enhanced Genome Data Management System IMG 2.1 marking 2-year anniversary
03-15-2007 · EurekAlert!
As interest in the rising number of newly characterized microbial genomes mounts, powerful computational tools become critical for the management and analysis of these data to enable strategies for such challenges as harvesting the potential of carbon-neutral bioenergy sources and coping with global climate change. The Integrated Microbial Genomes (IMG) data management system developed by the U.S. Department of Energy Joint Genome Institute (DOE JGI) addresses this challenge with the release of version 2.1.
Similar news · Read more »
- OHSU research suggests new strategy for protecting aging Americans against infectious disease
12-17-2007 · EurekAlert!
OHSU researchers have uncovered new information about the body's immune system in a study that suggests new strategies may be in order for protecting the country's aging population against disease. The scientists discovered an actual process by which naïve T-cells are lost later in life.
Similar news · Read more »
- Prehistoric remains reveal a drastic shift in northern fur seal ecology
05-21-2007 · EurekAlert!
Northern fur seals have experienced major changes in their behavior, ecology, and geographic range of over the past 1,000 years, according to a new study. Using techniques from archaeology, biochemistry, and ecology, a team of researchers has reconstructed the species’ prehistoric geographical range. Among other results, the scientists found that the northern fur seal’s reproductive behavior was very different in the past than it is today.
Similar news · Read more »
- At the root of nutrient limitation, ecosystems are not as different as they seem
11-08-2007 · EurekAlert!
Anyone who has thrown a backyard barbecue knows that hot dogs are inexplicably packaged in different numbers than buns -- eight hot dogs per pack versus 10 hot dog buns. Put in ecological terms, this means that weenie roasts are 'hot-dog limited' -- the extra buns are worthless without hot dogs to fill them. Such limiting factors are a cornerstone of natural ecology, where phosphorus or nitrogen limits plant production in most ecosystems.
Similar news · Read more »
- Markets of biodiversity and equity in trade: An illusion?
01-30-2008 · EurekAlert!
The Convention on Biological Diversity, adopted at the Rio de Janeiro Earth Summit of 1992, bore the objective of providing a legal and political framework for the conservation of biodiversity. In order to assess how these recommendations have been put into practice over the past 15 years, a team of scientists from the IRD and other research organizations1 has conducted a review aiming to analyse the strategies, practices and representations of the different participants in the trade of living resources.
Similar news · Read more »
- Disease opened door to invading species in California
03-12-2007 · EurekAlert!
Plant and animal diseases can play a major and poorly appreciated role in allowing the invasion of exotic species, which in turn often threatens biodiversity, ecological function and the world economy, researchers say in a new report. In particular, a plant pathogen appears to have opened the gate for the successful invasion of non-native grasses into much of California, one of the world's largest documented cases of invading species and one that dramatically changed the history and ecology of a vast grassland ecosystem.
Similar news · Read more »
- Massive reanalysis of genome data solves case of the lethal genes
10-18-2007 · EurekAlert!
Sifting through the massive backlog of microbial genome sequences from the public databases the US Department of Energy Joint Genome Institute identified genes that kill the bacteria employed in the sequencing process and throw a microbial wrench in the works. Their observations also offer a possible strategy for the discovery of new antibiotics. These findings are published in the Oct. 19 edition of the journal Science.
Similar news · Read more »
- Investigating the invisible life in our environment
02-01-2007 · EurekAlert!
A new computational method to analyse environmental DNA samples, developed by researchers at the European Molecular Biology Laboratory (EMBL) in Heidelberg, now sheds light on the microbial composition of different habitats, from soil to water. The study, which will be published in this week’s online issue of the journal Science, also reveals that microbes evolve faster in some environments than in others and that they rather rarely change their habitat preferences over time.
Similar news · Read more »
