Navigation Links
Antibiotic-eating bug unearthed in soil
Date:12/6/2012

repeatedly dosed, versus fresh soils where antibiotics were never applied.

They did this experiment, Topp explains, because of previous work indicating that pesticides often break down more quickly in soils with a long history of exposure, indicating that pesticide-degrading microbes have been selected for over time.

Still, it came as a surprise when they saw antibiotics also degrading much faster in long-term, treated plots than in fresh, control soils, he says. In particular, sulfamethazinea member of the antibiotic class called sulfonamidesdisappeared up to five times faster.

The researchers subsequently cultured from the treated plots a new strain of Microbacterium, an actinomycete that uses sulfamethazine as a nitrogen and carbon source. Extremely common in soil, actinomycete bacteria are known to degrade a wide range of organic compounds. And now at least two other sulfanomide-degrading Microbacterium strains have been reported, Topp says: one from soil and another from a sewage treatment plant.

Taken together, the findings suggest that the capability to break down sulfanomides could be widespread. And if it's indeed true that "the microbiology in the environment is learning to break these drugs down more rapidly when exposed to them, this would effectively reduce the amount of time that the environment is exposed to these drugs and therefore possibly attenuate the impacts," Topp says.

Not that negative impacts aren't still occurring, he cautions. In particular, long-term exposure to antibiotics puts significant pressure on soil bacteria to evolve resistance, which they typically do by giving and receiving genes that let them detoxify drugs, or keep the compounds out of their cells.

What the new research suggests, though, is that soil bacteria could be swapping genes for breaking down antibiotics at the same time.

"My guess is that's probably what's happening, but it remains to be det
'/>"/>

Contact: Madeline Fisher
mfisher@sciencesocieties.org
608-268-3973
American Society of Agronomy
Source:Eurekalert

Page: 1 2 3

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... Research awarded Michael F. Holick, PhD, MD, of Boston ... V. Avioli Award. Holick, a professor of medicine, physiology ... the understanding of vitamin D and its role in ... of the American Society for Bone and Mineral Research ... research. It is named for ASBMR,s first president and ...
(Date:7/11/2014)... is available in German . ... method that uses the refraction of X-rays through a ... produced with this method are often of much higher ... the team of Prof. Franz Pfeiffer are particularly interested ... therapy including X-ray phase-contrast imaging. One main goal ...
(Date:7/11/2014)... researchers at the National Institute of Standards and ... their work more effectively, they often prove that ... was the case recently for M. Lorna De ... the growing specialization of glycomics. Glycomics is the ... glycans that are attached to proteins and lipids ...
Breaking Biology News(10 mins):BUSM's Michael F. Holick receives American Society for Bone and Mineral Research award 2New simple setup for X-ray phase contrast 2
... derivative, and was approved for the treatment of neuropathic ... 2002. However, little evidence is available on the effects ... attack period. A recent study by Yanbo Zhang and ... showed that excitatory amino acids and protein kinase C ...
... Ectobius is a major textbook example of an invasive ... region from northernmost Europe to southernmost Africa. Ectobius ... amber that is about 44 million years old, and its lineage ... a shocking new discovery has uprooted that view. In fact, it ...
... stink bugs as pests, especially as the brown marmorated stink ... beneficial, such as Podisus nigrispinus (Dallas), a predatory ... for various insect pests of cotton, soybean, tomato, corn, kale, ... Annals of the Entomological Society of America called ...
Cached Biology News:After a 49-million-year hiatus, a cockroach reappears in North America 2New study may aid rearing of stink bugs for biological control 2
(Date:7/13/2014)... Dallas, TX (PRWEB) July 13, 2014 ... Silver Industry” is a professional and in-depth study on ... Global and China. , The report provides a basic ... chain structure. Global market analysis and Chinese domestic market ... trends and competitive landscape of the market. A comparison ...
(Date:7/11/2014)... BCC Research ( http://www.bccresearch.com ) reveals ... REACTION (PCR) TECHNOLOGY: GLOBAL MARKETS , the global market ... $140 billion in 2013. This is estimated to grow ... annual growth rate (CAGR) of 28.6%. , New digital ... exciting possibilities within the broader PCR field. The opportunities ...
(Date:7/10/2014)... 10, 2014 Women in the ... to an additional family planning option. Sayana® Press ... at all levels of the health system and ... a widely used contraceptive—Pfizer’s Depo-Provera® (depot medroxyprogesterone acetate)—with ... is the first of four African countries expected ...
(Date:7/10/2014)... July 10, 2014 Unraveling life’s mysteries ... The Archer Family purchased a DNA test ... but ended up with a lifetime of memories, sharing, ... the family members’ DNA genuinely brought the family closer ... search deeper into genetic history and prior to taking ...
Breaking Biology Technology:2014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 22014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 3Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 2Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 4Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 5Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 6Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5
... YORK, Oct. 6, 2011 A new invention could ... is a portable, rapid pathogen screener that could ... in processing plants, before it is delivered to the ... as a single bacteria, and is approximately 50 times ...
... 6, 2011 ProteinSimple today announced the launch ... control monitoring of protein-based therapeutics. The iCE3 platform ... conference, October 9-13, 2011, at Amelia Island, FL. ... product purity closely. Imaged capillary electrophoresis (iCE) systems ...
... Luminex Corporation (NASDAQ: LMNX ) announced today that ... – Be The Match to raise awareness of the need ... match for the growing number of patients awaiting life-saving bone ... National Marrow Donor Registry in an effort to assist patients ...
Cached Biology Technology:Breakthrough in Preventing Food-borne Illnesses Wins $20,000 Grand Prize in Global Design Contest 2Breakthrough in Preventing Food-borne Illnesses Wins $20,000 Grand Prize in Global Design Contest 3Breakthrough in Preventing Food-borne Illnesses Wins $20,000 Grand Prize in Global Design Contest 4ProteinSimple Launches New System for Protein Biologics 2Luminex Corporation Joins Forces With the National Marrow Donor Program - Be The Match® 2Luminex Corporation Joins Forces With the National Marrow Donor Program - Be The Match® 3Luminex Corporation Joins Forces With the National Marrow Donor Program - Be The Match® 4
Mouse monoclonal [3G131] to Desmoglein 1 ( Abpromise for all tested applications). entrezGeneID: 1828 SwissProtID: Q02413...
Mouse monoclonal [2D7/1] to E.coli LPS ( Abpromise for all tested applications). Antigen: Tissue / cell preparation: Escherichia coli J5 cells....
COMING SOON: Anti-Mouse C5/C5b, Clone BB5.1. Monoclonal Antibody...
KAI 1 (G-2)...
Biology Products: