Navigation Links
Study provides new way to classify E. coli bacteria and test for fecal contamination
Date:4/11/2011

is and Georgia Tech School of Biology graduate student Chengwei Luo compared the genomes of 25 different strains of E. coli and close relatives, which were sequenced by the Center for Microbial Ecology at Michigan State University, the Broad Institute in Massachusetts, or were publicly available in the National Center for Biotechnology Information database. Nine strains that were recovered primarily from environmental sources encoded all genes required for classification as E. coli.

"The orders-of-magnitude higher abundances of the group of organisms represented by these nine strains in environmental samples relative to those in human feces and the clinic indicate that they represent truly environmentally adapted organisms that are not associated primarily with mammal hosts," explained Konstantinidis, who also holds a joint appointment in the Georgia Tech School of Biology.

By comparing the full genomes of the samples, the Georgia Tech researchers identified 84 genes specific to or highly enriched in the genomes of the environmental E. coli and 120 genes specific to the strains commonly found in the gastrointestinal tract of healthy humans, which are called commensal E. coli. They also detected recent genetic exchange of core genes within the environmental E. coli and within the commensal strains, but not from commensal genomes to their environmental counterparts.

The environment-specific bacteria included genes important for resource acquisition and survival in the environment, such as the genes required to utilize energy sources and to break down dead cellular material. In contrast, the gastrointestinal E. coli included several genes involved in the transport and use of nutrients thought to be abundant in the gut.

"The genomic data suggest that the environmental E. coli are better at surviving in the external environment, but are less effective competitors in the gastrointestinal
'/>"/>

Contact: Abby Robinson
abby@innovate.gatech.edu
404-385-3364
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. £2 million study to reveal workings of dementia genes
3. New study looks to define evangelicals and how they affect polling
4. CU-Boulder study suggests air quality regulations miss key pollutants
5. Researchers study acoustic communication in deep-sea fish
6. Study reveals homeowner perceptions in fire-prone areas
7. Researchers study how pistachios may improve heart health
8. Study: urban black bears live fast, die young
9. New study indicates link between weight gains during pregnancy and dieting history
10. Study reveals specific gene in adolescent men with delinquent peers
11. Sweat it out: UH study examines ability of sweat patches to monitor bone loss
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study provides new way to classify E. coli bacteria and test for fecal contamination
(Date:9/16/2014)... -- Valencell, Inc., a leader in performance biometric data sensor ... Companies" representing North Carolina,s hottest ... Conference on September 16-17 th at the ... Raleigh, North Carolina . Valencell,s President Dr. ... "Digital Health Spotlight Sector" on how the Company,s internationally ...
(Date:9/16/2014)... , Sept. 16, 2014 As open enrollment ... important decisions about their 2015 benefits. According to ... solutions business of Aon plc (NYSE: ... a more proactive role in managing their health care ... ever for individuals to understand how they can make ...
(Date:9/15/2014)... and gut microbes influence processes from digestion to disease ... most biodiverse terrestrial ecosystems on the planet, more is ... the tropics. Smithsonian scientists and colleagues working on Panama,s ... a single tree were home to more than 400 ... tree species contained more than 7,000 different kinds. , ...
Breaking Biology News(10 mins):Valencell, Inc. Selected as 'Showcase Company' at CED Tech Venture Conference 2014 2Aon Hewitt Provides Tips to Help Workers Prepare for the Upcoming Open Enrollment Season 2Aon Hewitt Provides Tips to Help Workers Prepare for the Upcoming Open Enrollment Season 3Aon Hewitt Provides Tips to Help Workers Prepare for the Upcoming Open Enrollment Season 4Aon Hewitt Provides Tips to Help Workers Prepare for the Upcoming Open Enrollment Season 5Aon Hewitt Provides Tips to Help Workers Prepare for the Upcoming Open Enrollment Season 6Aon Hewitt Provides Tips to Help Workers Prepare for the Upcoming Open Enrollment Season 7Smithsonian scientists discover tropical tree microbiome in Panama 2
... published today in Biology Letters found that ship ... found little evidence that crabs acclimatise to noise over time. ... found that crabs exposed to recordings of ship noise showed ... real world this could have implications for growth and, if ...
... demographics likely put you at risk for salt-sensitive hypertension, ... you. The concept is that free radicals in ... rather than eliminate excess through urination. Excess sodium, in ... hypertension researcher in the Section of Experimental Medicine at ...
... March 2013 issue of The Journal of Urology , ... study conducted by four physicians from Radiotherapy Clinics of ... study, 25 Year Disease Free Survival Rate after Irradiation ... of Recurrence Used for Radical Prostatectomy, is the first-ever ...
Cached Biology News:Ship noise makes crabs get crabby 2Sodium transporter appears likely target for treating salt-sensitive hypertension 2Georgia Physicians' Study Published in The Journal of Urology 2Georgia Physicians' Study Published in The Journal of Urology 3Georgia Physicians' Study Published in The Journal of Urology 4
(Date:9/16/2014)... Mo. From cell phones to cars and ... life. Scientists and technology companies constantly are seeking ... for the first time using a water-based solution, ... a long-lasting and more efficient nuclear battery that ... a reliable energy source in automobiles and also ...
(Date:9/16/2014)... BlueInGreen® , a water quality company ... dissolved gases into liquids, announced the addition of ... representative firm to its sales network. H2Flow will ... and wastewater applications in the Canadian provinces of ... 1992 and serves Quebec and Ontario markets for ...
(Date:9/16/2014)... Fresne, President and CEO of Egenix, Inc. is pleased to ... its Scientific Advisory Committee. Dr. Vagner, a graduate ... performed research at Embl (European Molecular Biology Laboratory) Heidelberg, ... of health and medical research. He is a Research Director ... France , and at the Gustave Roussy ...
(Date:9/16/2014)... 16, 2014  The Council for Entrepreneurial Development ... in the country, today released a mid-year update ... It showed that in the first ... startups in the technology, life science, advanced ... from a variety of sources. Significant investment in technology ...
Breaking Biology Technology:BlueInGreen® Expands into Canada – Signs Representative Agreement with H2Flow Equipment Inc. 2New Appointment to the Scientific Advisory Committee at Egenix, Inc. 2CED's Mid-Year Update to its Innovators Report Shows NC Startups Attracting Investment From Across the Globe with Several High-Profile Investment Deals, IPOs and Acquisitions Signaling Strength of Entrepreneurial Sector 2CED's Mid-Year Update to its Innovators Report Shows NC Startups Attracting Investment From Across the Globe with Several High-Profile Investment Deals, IPOs and Acquisitions Signaling Strength of Entrepreneurial Sector 3CED's Mid-Year Update to its Innovators Report Shows NC Startups Attracting Investment From Across the Globe with Several High-Profile Investment Deals, IPOs and Acquisitions Signaling Strength of Entrepreneurial Sector 4
... Oct. 19 /PRNewswire-FirstCall/ - AEterna Zentaris Inc. (NASDAQ: ... global biopharmaceutical company focused on endocrine therapy and ... intended to complete the clinical development of the ... macimorelin (AEZS-130) which could be the first oral ...
... Calif., Oct. 18 /PRNewswire / -- ... of human induced pluripotent stem cells (iPSCs) using a ... and efficiency of reprogramming. The discoveries, which were ... between Fate Therapeutics and The Scripps Research Institute (TSRI), ...
... Oct. 16 Summerhill Biomass Systems is planting the seeds ... named after the Cayuga County community where the technology was ... for grinding up timber, brush, corn stalks and other plant ... James T. McKnight, Summerhill president and co-founder, said he,s eager ...
Cached Biology Technology:AEterna Zentaris to Complete Phase 3 Clinical Trial of Macimorelin (AEZS-130) as First Oral Diagnostic Test for Growth Hormone Deficiency 2AEterna Zentaris to Complete Phase 3 Clinical Trial of Macimorelin (AEZS-130) as First Oral Diagnostic Test for Growth Hormone Deficiency 3Fate Therapeutics Announces Creation of Small Molecule Platform for Commercial Scale Reprogramming 2Fate Therapeutics Announces Creation of Small Molecule Platform for Commercial Scale Reprogramming 3Summerhill Biomass Systems Unveils Solid Biomass Technology System at Syracuse Expo 2Summerhill Biomass Systems Unveils Solid Biomass Technology System at Syracuse Expo 3
...
... new Class II safety cabinets Heraeus HERAsafe KS ... user-orientated design. ,The new frameless slanted window ... area. The new front window design makes it ... large work aperture with a height of more ...
... has recently launched a custom synthesis ... (siRNA). Thermos siRNA molecules are: ... 2 DNA bases overhang at the ... Delivered fully deprotected and ready-to-use. ...
Mouse monoclonal [AZ24] to Polo like kinase ( Abpromise for all tested applications)....
Biology Products: