Navigation Links
Scientists offer way to address 'age-old' questions
Date:9/7/2011

werful ways. For instance, we found that how frequently a given age is observed along lineages is a direct reporter of how important that age is to the population's growth rate. This would allow us to predict the success or failure of mutant bacteria, which age differently from normal ones."

Using experimental data from laboratory populations of E. coli, the researchers confirmed several theoretical predictions. The article's other co-authors were Yuichi Wakamoto of the University of Tokyo and the Japan Science and Technology Agency and Alexander Grosberg, a professor in NYU's Department of Physics and its Center for Soft Matter Research.

The work builds upon a previously published paper in the Proceedings of the National Academy of Sciences, in which Kussell and co-author Stanislas Leibler of Rockefeller University offered a way to infer the behavior of individual cells from population-level measurements.

One of the behaviors they considered is known as stochastic switching, a strategy in which cells randomly activate certain genes in order to survive. Notably, pathogenic bacteria, which cause disease in both humans and animals, engage in stochastic switching, resulting in alternative cellular states that improve the bacteria's ability to survive. The cells best suited for given conditions survive while others die offanother example of selection within populations. Understanding what prompts this type of cellular change in bacteria, and which strains are more sustainable than others, could then lead to alternative methods to curb bacterial growth.

The study centered on understanding two types of cellular strategiesresponsive switching, in which cells change their state by reacting to environmental change, and stochastic switching, in which cells randomly activate certain genes, independent of external forces. Within a population, however, it is difficult to detect which strategy is being usedwhen cells change behavior, are they
'/>"/>

Contact: James Devitt
james.devitt@nyu.edu
212-998-6808
New York University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... University of Tennessee, Knoxville, research finds life can persist ... professor was part of a team that examined waters ... Antarctic ice sheet and found the extreme environment supports ... by Jill Mikucki and her colleagues has implications for ... in the solar system. The findings are published in ...
(Date:8/20/2014)... VALLEY, Calif., August 19, 2014 -- Bay Area Lyme ... diagnose and simple to cure, applauds new research published ... journal Ticks and Tick-borne Diseases . The ... Northwest California are active throughout the year, making the ... by researchers at California Department of Public Health (CDPH) ...
(Date:8/20/2014)... chili pepper causes a burning spiciness that is irresistible ... chili pepper,s effect are using their findings to develop ... which can be caused by inflammation or other problems. ... being tested in clinical trials, in ACS, Journal ... explain that decades ago, scientists had pegged a compound ...
Breaking Biology News(10 mins):University of Tennessee research uncovers subglacial life beneath Antarctic ice sheet 2Lyme disease risk is year-round in Northwest California, according to new study 2Lyme disease risk is year-round in Northwest California, according to new study 3
... by LSU Associate Professors of Biological Sciences Fernando Galvez and ... and laboratory study showing the effects of the Deepwater Horizon ... , The study, funded in part by the National Science ... is being published in the journal Proceedings of the ...
... Alzheimer,s disease rises and falls in the spinal fluid in ... Washington University School of Medicine in St. Louis have found. ... and reinforces a link between increased Alzheimer,s risk and inadequate ... brain,s relative inactivity during sleep may provide an opportunity to ...
... Steve Bergens and his graduate student Jeremy Johns ... to revolutionise the chemical industry by reducing its ... Their findings were published in a top international ... the chemical industry with a potential solution to ...
Cached Biology News:LSU researchers find impact of oil spill in marsh fish species 2Marker for Alzheimer's disease rises during day and falls with sleep 2Marker for Alzheimer's disease rises during day and falls with sleep 3Catalyst discovery has potential to revolutionize chemical industry 2
(Date:8/20/2014)... your ear could improve the health of your heart, ... of Leeds used a standard TENS machine like those ... to the tragus, the small raised flap at the ... ear canal. , The stimulation changed the influence of ... nervous signals that can drive failing hearts too hard. ...
(Date:8/20/2014)... August 20, 2014 GraphDB™ ... today including improvements to the enterprise replication cluster, ... for Lucene, SOLR and Elasticsearch. This release happens ... high performance triplestore – GraphDB™ was formerly known ... deploying the only mature enterprise resilient RDF triplestore ...
(Date:8/19/2014)... (PRWEB) August 19, 2014 Shimadzu ... chromatography systems, Prominence-i and Nexera-i, adding to the ... Combining excellent functionality, an intuitive operating environment, and ... a more efficient workflow for conventional to ultra-high-speed ... innovative, intuitive and intelligent design so users can ...
(Date:8/19/2014)... 19, 2014 A Geisinger researcher on a ... a Centers for Disease Control and Prevention (CDC) award ... health concern. Joseph Boscarino , Ph.D. ... a team of researchers nominated for the Centers for ... Award for Data Methods and Study Design. ...
Breaking Biology Technology:'Tickling' your ear could be good for your heart 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 3Geisinger investigator nominated for federal award 2Geisinger investigator nominated for federal award 3
... Life Sciences,Holdings, Inc. (Nasdaq: ADLS ), ... and commercialization of novel drugs in the,therapeutic ... today,announced that it was added to the ... reconstituted its comprehensive set of U.S. and,global ...
... 3 /Xinhua-PRNewswire-FirstCall/ -- Huifeng,Bio-Pharmaceutical Technology, Inc. (OTC ... of plant extracts and pharmaceutical raw materials,for ... in China,announced today that its company information ... Market Access Program, an information distribution,service that ...
... to offer choice of two distinct drugs on ... separate drug-eluting stent platforms, NATICK, ... today announced that the U.S. Food and Drug,Administration (FDA) has ... coronary artery disease. The,PROMUS Stent is a private-labeled XIENCE(TM) V ...
Cached Biology Technology:Advanced Life Sciences Added to Russell Microcap Index 2Advanced Life Sciences Added to Russell Microcap Index 3Huifeng Bio-Pharmaceutical (HFGB) Information to Be Available Through Standard & Poor's Market Access Program 2Boston Scientific Announces FDA Approval for PROMUS(TM) Everolimus-Eluting Coronary Stent System 2Boston Scientific Announces FDA Approval for PROMUS(TM) Everolimus-Eluting Coronary Stent System 3Boston Scientific Announces FDA Approval for PROMUS(TM) Everolimus-Eluting Coronary Stent System 4
Kit Components: Anti-Acetylated Histone H3 Salmon Sperm DNA/Protein A Agarose All necessary buffers. ...
Liquid. 50 μg/ml in PBS, pH 7.4. PROTECT FROM LIGHT. A convenient form of propidium iodide useful for flow cytometry studies. RTECS SF7949600, CAS 25535-16-4, M.W. 668.4. ...
Lyophilized solid. Suitable for evaluating functional activity of human complement components and for other research requiring a high level of hemolytic activity. ...
... Pro systems are high-precision microarrayers capable ... biological samples. VersArray ChipWriter Pro systems ... density, and reproducibility to deliver unparalleled ... substrates. Their modular component design and ...
Biology Products: