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

Rice University researchers "cured" a strain of bacteria of its ability to resist an antibiotic in an experiment that has implications for a long-standing public health crisis.

Rice environmental engineer Pedro Alvarez and his team managed to remove the ability of the Pseudomonas aeruginosa microorganism to resist the antibiotic medication tetracycline by limiting its access to food and oxygen.

Over 120 generations, the starving bacteria chose to conserve valuable energy rather than use it to pass on the plasmid a small and often transmissible DNA element that allows it to resist tetracycline.

The researchers' results, reported this month in the American Chemical Society journal Environmental Science and Technology, are the latest in a long effort to understand the environmental aspects of antibiotic resistance, which threatens decades of progress in fighting disease.

"The propagation of antibiotic resistance has been perceived as a medical or microbiology-related problem," Alvarez said. "And it truly is a serious problem. But what many people miss is that it is also an environmental pollution problem. A lot of the antibiotic-resistant bacteria originate in animal agriculture, where there is overuse, misuse and abuse of antibiotics."

Alvarez contended that confined animal feeding operations (CAFOs) are potential sources of environmental contamination by antibiotics and the associated antibiotic-resistant genes that find their way into the ground, water and ultimately the food supply.

"We started with the hypothesis that microbes don't like to carry excess baggage," he said. "That means they will drop genes they're not using because there is a metabolic burden, a high energy cost, to keeping them."

The Rice researchers tested their theory on two strains of bacteria, P. aeruginosa, which is found in soil, and E. coli, which carries resistant genes directly from animals throu
'/>"/>

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:10/14/2014)... N.Y. – Scientists have sequenced the house fly genome ... one might expect from an insect that thrives in ... published Oct. 14 in the journal Genome Biology ... biology and of how flies quickly adapt to resist ... Adult house flies (Musca domestica) carry and transmit more ...
(Date:10/14/2014)... team has discovered a new kind of stem cell that ... lines liver blood vessels, according to a study published today ... of such a cell type contradicts current theory on how ... hold clues to origins of, and future treatment for, liver ... cell into a complex being made up of more than ...
(Date:10/14/2014)... October 14, 2014 – Scientists from The Scripps Research ... National Institutes of Health (NIH) to lead an investigation ... fever disease in Africa. The study aims to understand ... patients die, while others survive the inflection. , ... basic mechanism of how Lassa fever virus causes disease ...
Breaking Biology News(10 mins):House fly genome reveals expanded immune system 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 3Scripps Research Institute team receives $6.6 million to investigate deadly Lassa virus 2
... will leave the lab this summer to apply ... skills at workshops held around the country by ... in science majors grows, college-level science teaching must ... inquiry-based learning, according to MSU plant biology professor ...
... has patented an improved microscopy method for measuring the ... create new pharmaceuticals that are a better match for ... Aberration Correction (DAC) microscopy, measures distances at the molecular ... microscopy. A special feature of the new method, ...
... Feb. 6, 2009 Complete Genomics, Inc. released proof-of-concept ... the first time yesterday evening. The analysis results were ... and CEO, during his presentation at the annual Advances ... Marco Island Marriott Beach Resort, Marco Island, Fla. ...
Cached Biology News:NSF-funded workshops help young researchers teach science 2Measuring molecules to improve drug design 2Complete Genomics releases proof-of-concept data for its sequencing technology for the first time 2Complete Genomics releases proof-of-concept data for its sequencing technology for the first time 3
(Date:10/20/2014)... , Oct. 20, 2014 PureTech ... company tackling big healthcare problems, announced today the ... round, with participation from Invesco Perpetual, a $120 ... used to drive PureTech,s existing pipeline forward and ... "PureTech has the scientific creativity to really go ...
(Date:10/19/2014)... Latin American hardware encryption display market report defines and ... forecast of revenue. This market was valued at $165.0 ... million by 2018, at a CAGR of 70.3% from ... the Latin American hardware encryption market report to get ... provides a glimpse of the segmentation of the market, ...
(Date:10/19/2014)... The Asian Automatic patient billing report defines and ... of revenue. The Automatic patient billing market in Asia ... 2018, at a developing CAGR of 7.2% from 2013 ... Asian Automatic patient billing market, to get an idea ... glimpse of the segmentation of this market in the ...
(Date:10/19/2014)... The report "Unmanned Ground Vehicle ... Technology, Payload, Type & by Geography - Forecasts ... unmanned ground vehicle market into various sub segments ... sizes. The report also identifies the factors driving ... along with the adoption trends. , The unmanned ...
Breaking Biology Technology:PureTech Announces Expansion with Oversubscribed $55M Funding Round 2PureTech Announces Expansion with Oversubscribed $55M Funding Round 3PureTech Announces Expansion with Oversubscribed $55M Funding Round 4PureTech Announces Expansion with Oversubscribed $55M Funding Round 5PureTech Announces Expansion with Oversubscribed $55M Funding Round 6The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 2Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 5
... 22, 2011 With the intent to create a ... Akron, the Austen BioInnovation Institute in Akron (ABIA) has ... "Healthier by Design: Creating Accountable Care Communities" held today. ... and wellness thought-leaders, the strategic discussion is the first ...
... BASEL, Switzerland, June 22, 2011 The Roche manuscript: ... Production of Bispecific IgG Antibodies" has been published in ... of the USA (PNAS). Corresponding authors are ... at Penzberg, and Christian Klein, Head of Oncology Programs, ...
... ,   Crescendo ... Roe as Chief Business Officer. Matthew joins,Crescendo from ... & Licensing. During a 23-year career ... acquisition, divestment, and sales,and marketing, and saw the ...
Cached Biology Technology:Austen BioInnovation Institute in Akron Begins Work on Roadmap for First U.S. Accountable Care Community 2Austen BioInnovation Institute in Akron Begins Work on Roadmap for First U.S. Accountable Care Community 3Proceedings of the National Academy of Sciences (PNAS) Publishes Roche Manuscript on Production of Bispecific IgG Antibodies 2Crescendo Biologics Appoints Matthew Roe as Chief Business Officer 2
The SVT3-2 diverter valve is a 3-port, 2-position valve for use with the BioLogic DuoFlow system....
... for 2-D separations. The cell has a six-gel ... xi multi-cell can be customized for several parameters: ... cooling system. The PROTEAN II xi multi-cell can ... multi-cell for a wider format that accommodates 17 ...
... 16 cm, is used for vertical slab gel ... gels. The cell is supplied without spacers and ... with gaskets, lower buffer chamber, lid with cables, ... upper buffer dam, casting stand with gaskets, leveling ...
CleanCut agarose is used to prepare genomic DNA plugs for use in pulsed field gel electrophoresis (PFGE) applications. Supplied as a 12 ml solution of 2% agarose....
Biology Products: