Navigation Links
Over time, an invasive plant loses its toxic edge
Date:9/1/2009

CHAMPAIGN, Ill. Like most invasive plants introduced to the U.S. from Europe and other places, garlic mustard first found it easy to dominate the natives. A new study indicates that eventually, however, its primary weapon a fungus-killing toxin injected into the soil becomes less potent.

The study, in Proceedings of the National Academy of Sciences, is one of the first to show that evolutionary forces can alter the very attributes that give an invasive plant its advantage. In fact, the study suggests the plant's defenses are undermined by its own success.

Garlic mustard comes from a family of smelly, sharp-tasting plants that includes cabbage, radish, horseradish and wasabi. Unlike most plants, which rely on soil fungi to supplement them with phosphorous, nitrogen and water, garlic mustard gets by without the extra help, said Richard Lankau, a postdoctoral researcher at the Illinois Natural History Survey (INHS) at the University of Illinois. Lankau led the study with INHS plant ecologist Greg Spyreas.

"For whatever reason, these plants just don't hook up with the soil fungus," Lankau said. Instead, garlic mustard produces glucosinolates, pungent compounds that leach into the soil and kill off many soil fungi, especially those native to North America. This weakens the native plants. As a result, garlic mustard now grows in dense patches in many North American woodlands, its preferred habitat. Those patches are often devoid of native plants.

Lankau began the new study with a seemingly obvious question: Once garlic mustard has vanquished most of its competitors, why would it invest as much in maintaining its toxic arsenal? He predicted correctly, it turns out that levels of glucosinolates in the plant would diminish over time.

"When you're in a situation where the only thing you're competing with is other garlic mustard, it may be that making lots of this chemical is not a very good idea," he said.'/>"/>

Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Rare cancer-causing syndrome found, for the first time, in Singapore
2. Easton, PA Police Officers Armed With BIO-key(R) Mobile Data Solution Access Information Anytime, Anywhere
3. Breakthrough technology observes synapse in real time, supporting theory of vesicular recycling
4. Invasive Australian jellyfish sighted in Gulf of Mexico in summer 2007
5. New chemically-sensitive MRI scan may bypass some invasive diagnostic tests in next decade
6. U of MN researchers discover noninvasive diagnostic tool for brain diseases
7. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
8. Minimally invasive heart surgery research wins NIH award
9. Smithsonian identifies invasive crab species in Panama Canal expansion area
10. Smithsonian identifies invasive crab species in Panama Canal expansion area
11. Book on weeds and invasive plants discusses how to manage them using ecological approaches
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Over time, an invasive plant loses its toxic edge
(Date:8/19/2014)... DIEGO, Calif. (August 19, 2014) Daylight was breaking ... MY Hanse Explorer. Between sips, about a dozen scientists ... and slip below the surface to collect water samples ... would tinker with the whirring gizmos and delicate machinery ... single goal: Be the first research group to bring ...
(Date:8/18/2014)... person,s gut may protect against or increase susceptibility to ... bacterial intestinal inflammation, according research published this week in ... American Society for Microbiology. The study also found that ... one,s gut bacteria composition. , "It has been known ... in the gut, can protect a person from colonization ...
(Date:8/18/2014)... UT Southwestern Medical Center have found a new way that ... known as long non-coding RNA. , The internal body clocks, ... functions, from waking and sleeping to body temperature and hunger. ... influenced by external cues such as light and temperature. , ... many organisms, what they do in the body, and how ...
Breaking Biology News(10 mins):Sequencing at sea 2Sequencing at sea 3What's in your gut? Certain bacteria may influence susceptibility to infection 2Researchers obtain key insights into how the internal body clock is tuned 2Researchers obtain key insights into how the internal body clock is tuned 3
... seeking to detect bioterrorism attacks, doctors diagnosing diseases ... a new ally in a Lawrence Livermore National ... as the Lawrence Livermore Microbial Detection Array (LLMDA), ... to detect within 24 hours any virus or ...
... prestigious Pierre Delmas Prize: An ESCEO-IOF/Servier Achievement Award was ... at the Claude Bernard University of Lyon, France. ... honour of the late Pierre D. Delmas, the world ... (IOF). The grant of 40,000 Euros, courtesy of Servier, ...
... A prescription drug already approved to treat genital warts and ... effectiveness of future vaccines for bacterial and viral diseases, such ... appear in ACS, Molecular Pharmaceutics , a bi-monthly journal. ... Research Center and UC-Berkeley note that vaccines prepared from weakened ...
Cached Biology News:New LLNL detection technology identifies bacteria, viruses, other organisms within 24 hours 2New LLNL detection technology identifies bacteria, viruses, other organisms within 24 hours 3Winner of Pierre Delmas Prize announced at World Congress on Osteoporosis 2010 2
(Date:8/18/2014)... 18, 2014 TNI BioTech, Inc. (OTC-BB: TNIB) ... manufacturing and marketing of innovative therapies for autoimmune diseases ... providing a second notice of TNI BioTech,s annual meeting ... announcement, Noreen Griffin , founder and CEO of ... your participation in the Annual Meeting. On behalf of ...
(Date:8/18/2014)... August 18, 2014 China is ... for the clinical research industry. Clinicaltrial.gov statistics highlight ... to its aging population; a high increase in ... a densely populated pool of patients and a ... these positive points, China also presents challenges for ...
(Date:8/16/2014)... 16, 2014 Firms in the ... guidance and advisory services to businesses, government bodies ... Industry services are highly diverse as operators assist ... range from geological and geophysical consulting services to ... the past five years, the recovery of the ...
(Date:8/16/2014)... make atomic-force microscope probes 20 times more sensitive and ... of an individual virus. , The technique, developed by ... using laser beams to cool a nanowire probe to ... achieved after cooling is accurate enough for us to ... 100 billion times lighter than a mosquito," said Dr ...
Breaking Biology Technology:TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 2TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 3TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 4China – Land of Opportunities & Challenges for the Clinical Research Industry, New Webinar Hosted by Xtalks 2Scientific and Economic Consulting in Canada Industry Market Research Report Now Available from IBISWorld 2Scientific and Economic Consulting in Canada Industry Market Research Report Now Available from IBISWorld 3Laser makes microscopes way cooler 2
... Feb. 4 Art,s Way Manufacturing, Inc. (Nasdaq: ... subsidiary, Art,s Way Scientific, Inc. - Buildings For ... - http://www.buildingsforscience.com/ The new site, reflective ... enhanced, clean and more user-friendly.Art,s Way Scientific ( ...
... (Nasdaq: KNDL ) announced today that it will ... closes on Tuesday, Feb. 24, 2009. The Company will host ... 25 at 8:30 a.m. Eastern Time. A question and answer ... participate in the telephone conference call, interested parties in the ...
... Patients Achieved an Objective Tumor Response by End of ... Inc. (Nasdaq: PPHM ) today reported that ... endpoint in the first stage of its ongoing Phase ... cancer (NSCLC). The open-label, Simon two-stage study is ...
Cached Biology Technology:Art's Way Manufacturing Announces Launch of New Web Site For Art's Way Scientific - Buildings For Science 2Art's Way Manufacturing Announces Launch of New Web Site For Art's Way Scientific - Buildings For Science 3Kendle Announces Details Regarding Fourth Quarter and Full-Year 2008 Earnings and 2009 Guidance Release, Webcast and Conference Call 2Peregrine Pharmaceuticals' Bavituximab Achieves Primary Endpoint in First Stage of Phase II Lung Cancer Study 2Peregrine Pharmaceuticals' Bavituximab Achieves Primary Endpoint in First Stage of Phase II Lung Cancer Study 3Peregrine Pharmaceuticals' Bavituximab Achieves Primary Endpoint in First Stage of Phase II Lung Cancer Study 4
Normal human serum, single donor...
... Quality ISO 9001:2000 Certified ... All Precedures Validated, SOP's Training ... Process for All Procedures GLP Documentation Upon ... one stop shopping point for all your ...
Human IL-17D Affinity Purified Polyclonal Ab...
BBS/Glycerol/Casein Block and Diluent - 10X Concentrate, 1 L...
Biology Products: