Navigation Links
Scientists learn how horseweed shrugs off herbicide
Date:6/16/2011

As everyone knows, the pharmaceutical industry is struggling to deal with bacteria that have become resistant to common antibiotics. Less well known is the similar struggle in agribusiness to deal with weeds that have become resistant to a herbicide that is widely used in farming practice.

The herbicide, first introduced in 1974, is glyphosate, the active ingredient in Monsanto's Roundup products and also in herbicides produced by other manufacturers. The first case of glyphosate resistance was documented in 1997, and today more than 20 weed species globally are reported to be resistant. (For more on the history of the herbicide read "The Back Story" here.)

Recently a team of scientists from Washington University in St. Louis and Monsanto, the St. Louis-based company that makes Roundup herbicides, were able to follow molecules of glyphosate as they entered a resistant variant of horseweed to discover exactly how the plant disarms the herbicide. Their work was published in Pest Management Science last year.

In a second paper published in April 2011, also in Pest Management Science, they describe herbicide application conditions that can be used to overcome the resistance mechanism they had discovered.

This is not the end of the story, the scientists say, because some weed species are resistant to the herbicide in ways different from horseweed. Still the scientists are glad to have won this round even if they know the contest will be prolonged.

Caught in the act

"The story begins when I received a phone call from Doug Sammons, who directs a research group at Monsanto tasked with uncovering the mechanisms leading to glyphosate resistance in weed species," says D. Andr d'Avignon, PhD, director of Washington University's High Resolution Nuclear Magnetic Resonance Facility.

"He was calling because, under favorable conditions, it is possible to track the chemical fate of phosphorus in a l
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists learn how horseweed shrugs off herbicide
(Date:10/16/2014)... Conn. , October 16, 2014 NXT-ID, ... or the "Company"), a biometric authentication company focused on ... its leading edge technologies including Wocket™, the Smart Wallet, ... (FiRe) Conferenece. FiRe is a leading global conference on ... Hosted by Mark Anderson , founder and ...
(Date:10/15/2014)... As our ability to assess the pandemic risk from ... developments, we must not allow ourselves to become complacent ... an international consortium of scientists. , Influenza pandemics arise ... have yet to develop widespread immunity – spreads in ... in the past 100 years, the worst of which ...
(Date:10/15/2014)... German Gauß-Allianz has admitted Johannes Gutenberg University Mainz ... Rhineland-Palatinate science hub continues to maintain a significant ... , "The acceptance of Johannes Gutenberg University ... is a milestone in the national and international ... The state of Rhineland-Palatinate can be proud that ...
Breaking Biology News(10 mins):NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3
... Varanus komodoensis ) are known to bite prey and release ... the victims are reported to go into shock before the ... prey are killed by pathogenic bacteria in the dragons, mouths ... of Proceedings of the National Academy of Sciences ...
... active site found in a naturally occurring enzyme, chemists at ... like nature,s most pervasive hydrogen processor. , The researchers describe ... Journal of the American Chemical Society , and posted ... puzzled by nature,s ability to use cheap and plentiful building ...
... million cases of malaria are diagnosed each year mostly ... treat malaria do exist, the demand for new treatments ... have developed a resistance to existing medications. Now, ... have discovered one way to stop malaria parasite growth, ...
Cached Biology News:Komodo even more deadly than thought: Research 2New lead on malaria treatment 2
(Date:10/19/2014)... The Latin American hardware encryption display market report defines ... and forecast of revenue. This market was valued at ... $2,366.8 million by 2018, at a CAGR of 70.3% ... of the Latin American hardware encryption market report to ... also provides a glimpse of the segmentation of the ...
(Date:10/19/2014)... Asia-Pacific Speech Analytics market report defines and segments the ... of revenue. This market is estimated to grow from ... at a Compound Annual Growth Rate (CAGR) of 23.9% ... of the Asia-Pacific Speech Analytics market report to get ... provides a glimpse of the segmentation in the market, ...
(Date:10/18/2014)... The “Human Insulin Market- by ... Premixed), Modern Human Insulin (Rapid Acting, Long Acting, ... Tresiba, Others) - Forecast to 2018” provides a ... opportunities, current market trends, and strategies impacting the ... and forecasts of the revenue and share analysis. ...
(Date:10/18/2014)... October 18, 2014 The Asia-Pacific Liquid ... segments the concerned market in Asia-Pacific with analysis and ... million in 2013, and is expected to reach $380.0 ... 2013 to 2018. , Browse through the TOC of ... idea of the in-depth analysis provided. This also provides ...
Breaking Biology Technology:The 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 Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 2Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 3Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 5The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 3
... A few weeks back, I suggested that the role of IT ... I have this picture in my head of urgent communiqus and ... views all colliding in the middle of tense situations that could ... cross-culture experience, patience and a great deal of flexibility is the ...
... - A proposed state ban on all forms of ... on Children and Families and is headed for a full ... fast track with identical bills - SB 243 and AB ... has drawn vigorous opposition from both the scientific community and ...
... 499, a proposed ban on all forms of human cloning ... embryos both for reproductive purposes and for what practitioners have ... embryo for the purpose of extracting stem cells. Penalties for ... go up to ten years in prison and $1 million ...
Cached Biology Technology:IT is the New Foreign Service 2IT is the New Foreign Service 3Cloning ban too broad, stem-cell researchers argue 2Cloning ban too broad, stem-cell researchers argue 3Cloning ban too broad, stem-cell researchers argue 4
...
Salmonella typhimurium Immunogen: Heat inactivated bacterial cells of Salmonella typhimurium B Storage: 4 C...
... High Performance, 5 ml. The same ... HiTrap Streptavidin columns for fast, reliable ... into Tricorn 5/50 GL, XK 16/20, ... purifications are required.Extremely useful for exploiting ...
... Clone/PAD: ZMD.366. Immunogen: ... internal region of human SENP1. ... human ~73 kDa SENP1. ... or DYKDDDDK)-HA-tagged-SENP1 transfected Hep2 cell ...
Biology Products: