Navigation Links
Lack of energy an enemy to antibiotic-resistant microbes
Date:2/11/2013

gh their feces into the environment.

By slowly starving them of nutrients and/or oxygen through successive generations, they found that in the absence of tetracycline, both microbes dumped the resistance plasmid, though not entirely in the case of E. coli. But P. aeruginosa completely shed the genetic element responsible for resistance, which made it susceptible once again to antibiotics. When a high level of tetracycline was present, both microbes retained a level of resistance.

One long-recognized problem with antibiotics is that they tend to snatch defeat from the jaws of victory. If any antibiotic-resistant bacteria are part of a biological mix, whether in a person, an animal or in the environment, the weak microbes will die and the resistant will survive and propagate; this process is known by biologists as "selective pressure."

So there is incentive to eliminate the resistance plasmid from bacteria in the environment as close to the source as possible. The experiments point to possible remediation strategies, Alvarez said. "There are practical implications to what we did," he said. "If we can put an anaerobic barrier at the point where a lagoon drains into the environment, we will essentially exert selective pressure for the loss of antibiotic-resistant genes and mitigate the propagation of these factors."

An anaerobic barrier may be as cheap and simple as mulch in the drainage channel, he said. "If you have a CAFO draining through a channel, then put an anaerobic barrier in that channel. A mulch barrier will do." He said a mulch barrier only a meter thick could contact slow-moving groundwater for more than a month. "That may not kill the bacteria, but it's enough to have bacteria notice a deficiency in their ability to obtain energy from the environment and feel the stress to dump resistant genes."

Alvarez has been chipping away at the problem since moving to Rice from the University of Iowa in 2004
'/>"/>

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Popular energy drinks trigger caffeine jitters
2. Aldi Süd supermarkets -- energy-optimized
3. Photovoltaics beat biofuels at converting suns energy to miles driven
4. Marginal lands are prime fuel source for alternative energy
5. Preventing climate change: The size of the energy challenge
6. Joslin researchers identify important factor in fat storage and energy metabolism
7. WCS applauds Dept. of Interior plan balancing conservation and energy development in NPR-A
8. New online tool estimates carbon and energy impact of trees
9. Energy Deptartment funds UW project to turn wasted natural gas into diesel
10. Stanford geoscientist cites critical need for basic research to unleash promising energy sources
11. An energy conscious workforce: New research looks at how to encourage staff to go green
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/18/2015)... March 18, 2015 As mobile payments ... revolutionary smart wallets and apps continue to be introduced into ... in the mobile payment industry in focus today are:  NXT-ID, ... (NYSE: BABA ), Apple Inc. (NASDAQ: ... Facebook Inc. (NASDAQ: FB ) NXT-ID, ...
(Date:3/16/2015)... 16, 2015 Between 16 ... present groundbreaking innovations in biometric identification at the ... .      (Photo: http://photos.prnewswire.com/prnh/20150316/735333 ... is well at the forefront: the company,s all ... in Germany . BiometricGate is ...
(Date:3/12/2015)... March 12, 2015 WHEN:Tuesday, March 17, 2015 ... http://bit.ly/1G7Os0L . SPEAKERS: , Frost & Sullivan ... http://photos.prnewswire.com/prnh/20150311/181111 Biometric companies must ... in several different markets and industries. This is ... an uptrend. Join Frost & ...
Breaking Biology News(10 mins):Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3Biometrics Key to Future Growth in Healthcare, Retail and Financial Markets 2Biometrics Key to Future Growth in Healthcare, Retail and Financial Markets 3
... RIVERSIDE, Calif. ( www.ucr.edu ) -- A team led ... Bourns College of Engineering has made a discovery in ... from kill viruses to increase storage capacity of DVDs. ... data processing, information storage and biology. Their applications have ...
... 19th conference of the International Society for Sexually Transmitted ... in Quebec City, Canada. The world,s foremost conference ... 1,200 scientists from every continent to discuss the most ... and treatment; emerging threats in bacterial STDs; major intervention ...
... Spanish . The last of seven cotton ... a major 4-year cotton gin dust sampling project draws to ... project to intensively sample emissions from seven cotton gins across ... Research Service (ARS) Cotton Production and Processing Research Unit in ...
Cached Biology News:New laser technology could kill viruses and improve DVDs 2ARS and cooperators study cotton gin dust emissions 2
(Date:4/1/2015)... NJ (PRWEB) April 01, 2015 Earlier ... BioNJ, a vibrant life sciences industry association that represents ... 400 members. , Jonathan Parker, AJO’s Vice President ... Gala Dinner in February, an event that attracted over ... highlights, Don Wright, a 73 year old cancer survivor ...
(Date:3/31/2015)... -- CytoSorbents Corporation (NASDAQ CM: CTSO), a critical ... critically-ill and cardiac surgery patients in multiple countries ... results for the fiscal year ending December 31, ... were a record $3.1M, an increase of $2.3M ... $0.8M Highlights for the Year Ending December 31, ...
(Date:3/31/2015)... KY (PRWEB) March 31, 2015 ... 50 schools for online bachelor’s of criminal justice ... to connecting people to inspiring ideas and high ... an e-mail to the University. We are confident ... University.” , This is the site’s first ...
(Date:3/31/2015)... , March 31, 2015  Sonoa Health, a health ... , has developed a world-first consumer health portal, Health&, ... prescriptions, wearable devices and more. Today, the ... as its CEO, who brings to the table more ... which has included working closely with the biggest names ...
Breaking Biology Technology:HR Consulting Firm, A.J. O'Connor Associates Joins BioNJ – The Vibrant 400 Member Strong Life Sciences Industry Association - and Attends its Annual Dinner 2CytoSorbents Reports Record 2014 Revenue 2CytoSorbents Reports Record 2014 Revenue 3CytoSorbents Reports Record 2014 Revenue 4CytoSorbents Reports Record 2014 Revenue 5CytoSorbents Reports Record 2014 Revenue 6CytoSorbents Reports Record 2014 Revenue 7CytoSorbents Reports Record 2014 Revenue 8CytoSorbents Reports Record 2014 Revenue 9CytoSorbents Reports Record 2014 Revenue 10CytoSorbents Reports Record 2014 Revenue 11EKU Ranked in Top 50 Among Online Criminal Justice Degrees 2Investment Banker Appointed CEO of Australian Health Tech Start-Up 2Investment Banker Appointed CEO of Australian Health Tech Start-Up 3
... MEDFORD/SOMERVILLE, Mass. -- Promising research on superconducting materials, near ... Tufts University,s School of Engineering early career awards from ... The awards are among the most prestigious honors given ... at the early stages of their careers, when many ...
... March 23 The Superior Court of Pennsylvania has reinstated an appeal filed by ... been dismissed by an order from the same court on February 18, 2010 . The Superior Court also ... ... , ...
... - and authorities on the track of illicit alcohol ... hand. Measurement experts have unveiled a portable device to ... almost anywhere. Published in the open access Chemistry ... is just as accurate, and more sophisticated, than widely ...
Cached Biology Technology:3 Tufts engineering faculty earn prestigious national awards for promising research 23 Tufts engineering faculty earn prestigious national awards for promising research 3UPDATE: Appeal of Lawsuit by Former Chief Executive Officer- Reinstated; and Sanctions Order Vacated 2How strong is your booze? 2
Bio-Plex Manager software, version 3.0, 5 license netshare, is a five-user software package that provides access to data from the Bio-Plex suspension array system from a server. This version does not...
... slide chambers are vapor-tight adhesive chambers for sealing ... are affixed over a sample on a glass ... two ports, and the ports are then sealed ... and replaced to allow exchange of reaction fluid. ...
... involvement of integrins in vascular proliferation, adhesion, ... integrin family of cell adhesion receptors consists ... of an a and b subunit that ... and functional diversity of the integrin family ...
... Ease of Use : GeneTraffic ... software tool for biological research. GeneTraffic provides ... to validate your data prior to analysis. ... Quickly define your projects using the MIAME ...
Biology Products: