Quantcast

Latest Lambda phage Stories

Bacterial 'Syringe' Necessary For Development Of Marine Animals
2014-01-15 08:43:59

California Institute of Technology If you've ever slipped on a slimy wet rock at the beach, you have bacteria to thank. Those bacteria, nestled in a supportive extracellular matrix, form bacterial biofilms—often slimy substances that cling to wet surfaces. For some marine organisms—like corals, sea urchins, and tubeworms—these biofilms serve a vital purpose, flagging suitable homes for such organisms and actually aiding the transformation of larvae to adults. A new study at the...

2012-04-11 22:30:42

Anyone who's tried a weekend home improvement project knows that to do a job right, you've got to have the right tools. For cells, these "tools" are proteins encoded by genes. The right genes for the job are turned on only in the specific cells where they are needed. And every cell in your body has a specific job to do. Cells in your pancreas have to produce insulin, while cells in the retina of your eye must be able to sense light and color. Like using the wrong tool for the job, if the...

2011-04-25 16:12:33

Recently a research paper titled "Expanding the Diversity of Mycobacteriophages: Insights into Genome Architecture and Evolution" was published in PLoS ONE, a peer-reviewed online journal published by the Public Library of Science. The authors included 12 Washington University undergraduates who had participated as freshman in the inaugural Phage Hunters course at Washington University in St. Louis. Phages are viruses that infect bacteria by injecting genetic material into them with a...

2010-05-14 11:39:49

Members of a population of identical cells often "choose" different fates, even though they exist in identical conditions. The difference may rest with the "hidden variables" within the cells, said researchers from Baylor College of Medicine in a report that appears in the current issue of the journal Cell. That finding, tested in bacterial cells of Escherichia coli infected with viruses called bacteriophage lambda, challenges the commonly held belief that the differences in fate rest with...

2008-12-09 12:58:07

U.S. university researchers say they've uncovered clues from a virus quirk that may lead to new ways to kill E. coli bacteria, which can be fatal to humans. The team from Penn State University said they learned how and why a particular virus injects an RNA polymerase -- an enzyme catalyzing polymer -- into an E. coli bacterial cell, the university said in a new release. The results help advance understanding of infection tactics used by viruses attacking bacterial cells -- which may lead to...

c399c583a76dee54783f6b87b471fddd1
2005-06-30 00:30:00

In another step to decipher information in the human genome, scientists have discovered the location and sequence of over 10,000 DNA regions that function as genetic on-off switches, or "promoters" in human fibroblasts. Fibroblasts are relatively generic, easily maintained, human cells that form connective tissues throughout the body. By knowing the specific sequences of DNA that control the nearly 8,000 active genes in fibroblasts, scientists can tease apart the biochemical regulation...

2005-06-22 12:20:00

By comparing 140 sequenced bacterial genomes, researchers have uncovered a system for regulating genes essential to bacterial replication - and they did it solely by computer keystrokes and mouse clicks. Mikhail Gelfand, a Howard Hughes Medical Institute international research scholar at the Institute for Information Transmission Problems (IITP) in Moscow, and his postdoctoral fellow, Dmitry Rodionov, used comparative genomics to identify a new transcription factor system in bacteria that...


Word of the Day
baudekin
  • A rich embroidered or brocaded silk fabric woven originally with a warp of gold thread.
'Baudekin' seems to be an alternative form of 'baldachin,' from the Italian 'Baldacco,' Baghdad, the city where the material was made.
Related