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Tag: "amoeba" at biology news

Caterpillars tell us how bacteria cause disease

... have been interacting with simple animals such as amoeba and insects for a staggering length of evolutionary time. It seems likely that most virulence genes around today probably first evolved to work against these hosts". With funding from the Biotechnology and Biological Sciences Research Council's (B...

Scientists' cell discovery unearths evolutionary clues

...sly, there was almost no molecular data for social amoeba ?Dictyostelia ?which are a hugely diverse and anci...the first time the family tree of all known social amoeba species and the evolution of their multicellular life style. "This provides a starting point in ...

Einstein researchers take the pulse of a gene in living cells

...s a gene important in the life cycle of the social amoeba Dictyostelium, thousands of which sometimes aggregate into a single slug-like mass. This developmental gene plays a major role in transforming the "slug" into a stalk-like structure called a fruiting body, which releases new amoebae. "The pulsing we...

Silence of the amoebae

...ng a copy of a specific part of that gene into the amoeba cell nucleus. Introducing the plasmid led to the modification of DNA "packing" proteins, causing the DNA-protein packages to become more tightly coiled ?something like a tangled telephone cord ?and causing an irreversible silencing of gene expression...

Single cell amoeba increases MRSA numbers 1000- fold

Scientists in the UK have found that a type of amoeba acts as an incubator for MRSA bacteria. As amoebae...bacteria. "We need more research into the role of amoeba in the spread of MRSA ?hospitals should aim to eradicate amoebae as well as the bacteria themselves"...

MRSA use amoeba to spread, new research shows

...nimate objects such as vases, sinks and walls. As amoeba produce cysts to help them spread, this could mean...arch on other pathogens suggests that by infecting amoeba first, MRSA may emerge more virulent and more resistant to antibiotics when it infects humans. "Inf...

Biologists determine genetic blueprint of social amoeba

...print of Dictyostelium discoideum, a simple social amoeba long used by researchers as a model genetic system... the genetic blueprint of Dictyostelium, the first amoeba genome to be sequenced, has clarified the place that Dictyostelium occupies in the hierarchy of life...

NHGRI targets 12 more organisms for genome sequencing

...aulti and Nasonia longicornis); a free-living soil amoeba (Acanthamoeba castellanii); and three fungi (Schizosaccharomyces octosporus, Schizosaccharomyces japonicus, Batrachochytridium dendrobatidis). It has been shown that most sequences of the human genome originated long before humans themselves. Conseq...

Microarrays as phenotype

...stelium (Dictyostelium discoideum), a form of soil amoeba used in the laboratory because many of its 10,000 genes are homologues or equivalents of genes found in humans. Using microarray data alone, they determined the orders in which genes function in a particular pathway in that organism. The protein kin...

Distributed Basic Local Alignment Search Toolkit (W.ND-BLAST)

...e of these harmful pathogens are also protected by amoeba that are resistant to chlorination, temperature and osmotic pressure. The amoeba acts as a "Trojan Horse" harboring and transporting the microbes. Amoebas with waterborne resistant ...

New strategies to reduce hospital-aquired infections

...e of these harmful pathogens are also protected by amoeba that are resistant to chlorination, temperature and osmotic pressure. The amoeba acts as a "Trojan Horse" harboring and transporting the microbes. Amoebas with waterborne resistant ...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

The genome sequence of the parasitic amoeba Entamoeba histolytica, a leading cause of severe d...n the unusual shared biology between the parasitic amoeba and anaerobic gut bacteria. The E. histolytica genome sequence is expected to help in the developme...

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