Navigation Links
Managing specialized microbes to clean stubborn chemicals from the environment
Date:6/26/2014

us range of metal and other components.

TCE produces many undesirable health side effects. The most alarming hazard associated with TCE exposure is cancer. In 2011, the United States Environmental Protection Agency revised its Final Health Assessment for Trichloroethylene, formally identifying TCE as a human carcinogen.

Improper disposal of TCE (and related chlorinated chemicals) is a major threat to human health and water sources due to the volume of these chemicals that have found their way into the environment, the resulting carcinogenic hazard and the significant challenges involved in cleanup.

Enter Dehalococcoides mccartyi, a group of anaerobic bacteria whose unique metabolic processes allow them to grow and thrive, using TCE as part of their respiratory machinery.

"They use these chlorinated solvents as their electron acceptor, which means they respire them," Krajmalnik-Brown says. "It's like their oxygen." (Just what Dehalococcoides was living on before the introduction of TCE remains an unresolved puzzle.)

Dehalococcoides have become an invaluable tool for the bioremediation of sites contaminated with TCE because they can convert the hazardous chemical first into cis-dichlroethene (cis-DCE), then to vinyl chloride, intermediary chlorinated byproducts, and finally into ethene, an environmentally benign, non-chlorinated end-product. As Krajmalnik-Brown notes "to date, every time we see a site where ethene is being produced, Dehalococcoides are present."

There's one problem, however. In some cases, Dehalococcoides fail to complete the transformation of TCE into ethene, stalling at the mid-stage reaction and sequentially producing two chemicals: cis-DCE and vinyl chloride. The latter is a human carcinogen and of grave concern in the environment, as it can disperse more readily than the original TCE.

The primary focus of the PLOS ONE study was to determin
'/>"/>

Contact: Joseph Caspermeyer
Joseph.Caspermeyer@asu.edu
Arizona State University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Managing renewables intelligently
2. Internists must play a larger role in managing menopausal symptoms
3. Managing Type 1 diabetes as an adolescent
4. Managing waters shared across national boundaries: Treasury of papers helps capture 20 years of lessons
5. Research examines new methods for managing digestive health
6. Managing biodiversity data from local government
7. NIST chip produces and detects specialized gas for biomedical analysis
8. AegisCare Offers Specialized Home Health Care for Dementia and Alzheimers Patients
9. First fossil bird with teeth specialized for tough diet
10. Preclinical studies use specialized ultrasound to detect presence of cancer
11. Dinosaur fossil: Even specialized predators didnt turn down free meals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Managing specialized microbes to clean stubborn chemicals from the environment
(Date:4/20/2015)... PASADENA, Calif. , April 20, 2015 ... San Gabriel Valley to implant a new miniaturized, wireless ... HF System is the first and only FDA-approved heart ... reduce hospital admissions when used by physicians to manage ... a sensor that is implanted in the pulmonary artery ...
(Date:4/14/2015)... , April 14, 2015  HYPR Corp. today ... (FIDO ® ) Alliance tm , an industry ... members commit to share technology and collaborate to ... are interoperable, more secure and private, and easier ... identity verification that protects sensitive user information and ...
(Date:4/13/2015)...  higi, a leading cloud-based consumer engagement platform that ... with their communities around health and wellness, announced today ... API.  ... and convenient vehicle to receive validated health information from ... The API will allow higi,s trusted partners, on a ...
Breaking Biology News(10 mins):Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3
... , This release is available in German ... plants, non-native plant species develop special strategies. These differ in ... Dr. Ingolf Khn and Dr. Sonja Knapp of the ... a study published in the current issue of the scientific ...
... , BLOOMINGTON, Ind. -- Sloppy shipping of a donated ... leading cause of vision loss has inadvertently helped uncover ... has led researchers to urge review of how millions ... type of age-related macular degeneration called choroidal neovascularization. ...
... imaging has been identified as one factor that contributes ... US. Unnecessary or inappropriate imaging utilization magnifies the cost ... PET/CT scans. Though these studies often provide the best ... experts suspect that a significant number of unnecessary studies ...
Cached Biology News:Different recipes for success in the world of plants 2Different recipes for success in the world of plants 3Sloppy shipping of human retina leads IU researchers to discover new treatment path for eye disease 2Sloppy shipping of human retina leads IU researchers to discover new treatment path for eye disease 3Sloppy shipping of human retina leads IU researchers to discover new treatment path for eye disease 4Radiologists study necessity of additional imaging recommendations in PET/CT oncologic reports 2
(Date:4/30/2015)... , April 30, 2015 The following is an ... Directors of China Cord Blood Corp (NYSE: CO ) ... committee of the independent directors of China Cord Blood Corp ... offer of $6.40 per share from Golden Meditech Holdings Co ... per share would greatly benefit Golden Med and Mr. Kam, ...
(Date:4/30/2015)... , April 30, 2015  The Paul G. ... Distinguished Investigator (ADI) grants to six groups of researchers ... most challenging roadblocks in neuroscience: growing mature human brain ... a total of $7.5 million over three years.  ... and their research is especially significant because the field ...
(Date:4/30/2015)... MENLO PARK, Calif. , April 30, 2015 /PRNewswire/ ... company in the emerging field of regenerative medicine, today ... operating results on Thursday, May 7, 2015 after the ... host a conference call and webcast on Thursday, May ... Pacific to discuss the results and recent corporate developments. ...
(Date:4/30/2015)... WuXi PharmaTech (Cayman) Inc. ("WuXi" or the ... R&D services provider, today announced that its board of ... April 29, 2015, from a consortium (the "Consortium") led ... chairman and chief executive officer of the Company, and ... transaction (the "Transaction") involving the acquisition of all outstanding ...
Breaking Biology Technology:April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 2April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 3April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 4April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 5The Paul G. Allen Family Foundation Awards $7.5 Million To Study Brain Cell Growth And Development 2The Paul G. Allen Family Foundation Awards $7.5 Million To Study Brain Cell Growth And Development 3The Paul G. Allen Family Foundation Awards $7.5 Million To Study Brain Cell Growth And Development 4The Paul G. Allen Family Foundation Awards $7.5 Million To Study Brain Cell Growth And Development 5Asterias Biotherapeutics to Report First Quarter Results on May 7, 2015 2Asterias Biotherapeutics to Report First Quarter Results on May 7, 2015 3WuXi PharmaTech Announces Receipt of Proposal 2WuXi PharmaTech Announces Receipt of Proposal 3WuXi PharmaTech Announces Receipt of Proposal 4WuXi PharmaTech Announces Receipt of Proposal 5WuXi PharmaTech Announces Receipt of Proposal 6
... for United Industries , Madison, Wis. Battery ... a contract to purchase St. Louis-based firm United Industries for ... deal expected to close in February. The deal will give ... market, obtaining United brands such as Spectracide, Vigoro and Sta-Green. ...
... such as entrepreneur, venture capital or knowledge worker when talking ... 2000, the war on terror and other global trends fundamentally ... relied for decades on the strength of its big companies ... tech-savvy small companies to take their place. , ,Gone are ...
... business , Milwaukee Johnson Controls ... French company that will pay approximately 330 million Euros, or ... Pontoise, France. Johnson Controls bought it in 2001 from another ... at 350 million Euros. , SBC Foundation donates $1 million ...
Cached Biology Technology:Tech Digest: Rayovac, Inacom, TomoTherapy, Regal-Beloit, Modine 2Wisconsin Angel Network is part of states focus on entrepreneurship 2Wisconsin Angel Network is part of states focus on entrepreneurship 3
Pendrin (H-195)...
Request Info...
Conveniently document gels, films and membranes with a high quality thermal printer. , Compact, footprint printer , Supplies 256 gray scale for high resolution, archive-quality thermal film prints...
... 384 Round Well Plate ... Labsystems wide range of ... for high-throughput screening and ... of assays and are ...
Biology Products: