Navigation Links
Changing climate likely to make 'super weed' even more powerful
Date:6/3/2009

Researchers at the University of Delaware have discovered a new reason why the tall, tasseled reed Phragmites australis is one of the most invasive plants in the United States.

The UD research team found that Phragmites delivers a one-two chemical knock-out punch to snuff out its victims, and the poison becomes even more toxic in the presence of the sun's ultraviolet rays.

The study, which is published in the June issue of the scientific journal Plant Signaling & Behavior, is believed to be the first to report the effects of UV-B radiation on plant allelopathy, the production of toxins by a plant to ward off encroachment by neighboring plants.

The authors include Thimmaraju Rudrappa, a former postdoctoral researcher at UD who is now a research scientist at the DuPont Company; Harsh Bais, assistant professor of plant and soil sciences; Yong Seok Choi, postdoctoral researcher in the Department of Chemical Engineering; Delphis Levia and David R. Legates, both associate professors in the Department of Geography; and Kelvin Lee, Gore Professor of Engineering and director of the Delaware Biotechnology Institute.

The research was conducted in Delaware wetlands and in Bais's lab at the Delaware Biotechnology Institute, a major center for life sciences research at the University of Delaware.

"The toxin secreted by Phragmites is degraded by sunlight -- ultraviolet rays -- and causes severe deleterious effects on other native plants," Bais said.

"Our research also addresses the growing questions of increased UV-B incidences because of global warming and its ultimate effect on plants. In this case, an invasive plant is accidentally utilizing the changed global conditions for its survival and invasion," Bais noted.

Two years ago, Bais led a study which discovered that Phragmites actively secretes gallic acid to kill off plants and take over new turf. Gallic acid, also known a
'/>"/>

Contact: Tracey Bryant
tbryant@udel.edu
302-831-8185
University of Delaware
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Changing climate will lead to devastating loss of phosphorus from soil
2. Satellite snow maps help reindeer herders adapt to a changing Arctic
3. Changing sexes on the sea floor
4. National Science Foundation forum to address ecological connectivity and climate in a changing world
5. Dont go changing: New chemical keeps stem cells young
6. Survival in a Changing World: The Journal of Experimental Biology 2009 symposium
7. Honey bees on cocaine dance more, changing ideas about the insect brain
8. CSHL researchers map changing epigenetic modifications that enable transposons to run amok
9. Biogeography, changing climates and niche evolution
10. Global warming is changing organic matter in soil
11. Fitness in a changing world
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Changing climate likely to make 'super weed' even more powerful
(Date:7/11/2014)... Canyon fire started near the City of Entiat on ... resources, the fire quickly grew to over 1,000 acres ... the fire is under investigation by the Washington Department ... with existing local resources in developing fire control strategies ... (USFS), Washington State Department of Natural Resources, (WA DNR), ...
(Date:7/11/2014)... Institute of Standards and Technology (NIST) need a ... they often prove that necessity is truly the ... for M. Lorna De Leoz and Stephen Stein, ... glycomics. Glycomics is the study of the abundant, ... to proteins and lipids and influence cellular processes, ...
(Date:7/11/2014)... two different ways that allow unprecedented experimental insights ... of oxygen molecules in photosynthesis. The two studies ... Nature Communications . , "The new knowledge will ... oxidation, which are key components for building artificial ... energy in fuels like hydrogen, ethanol or methanol," ...
Breaking Biology News(10 mins):Molecular snapshots of oxygen formation in photosynthesis 2
... Assistant Professor Frank J. Slack at Yale University has identified ... lung cancer, presenting new possibilities for diagnosis and treatment. The ... and Developmental Cell. , The oncogene Ras is out of ... over-expressed or activated by mutation. According to Slack, a member ...
... at the Marine Biological,Laboratory (MBL) has published ... that supports her hypothesis that, when combined, ... as BCE--can act synergistically to alter a ... have previously studied the effects,of these pollutants ...
... a longtime University of Chicago collaborator, Goldstein conducted an experiment ... these skinny, graceful fish can swim from salt water to ... prompt an equally drastic physiological change: Our cells would take ... and rapidly causing death. So how do skates do it? ...
Cached Biology News:Yale Scientists Find MicroRNA Regulates Ras Cancer Gene 2Clam embryo study shows pollutant mixture adversely affects nerve cell development 2Clam embryo study shows pollutant mixture adversely affects nerve cell development 3Sea skate experiment sheds light on human cell transport 2
(Date:7/11/2014)... 11, 2014 BCC Research ( http://www.bccresearch.com ... POLYMERASE CHAIN REACTION (PCR) TECHNOLOGY: GLOBAL MARKETS , the ... reached nearly $140 billion in 2013. This is estimated ... five-year compound annual growth rate (CAGR) of 28.6%. , ... interesting and exciting possibilities within the broader PCR field. ...
(Date:7/11/2014)...  Researchers have pioneered a revolutionary new way ... called Virtual Finger, allows scientists to move through ... synapses using the flat surface of their computer ... studies orders of magnitude more efficient, saving time, ... many areas of experimental biology. The software and ...
(Date:7/10/2014)... July 10, 2014 Product and ... very low abundance and are often “lost in ... time-consuming. , Join presenters Dr. Rowel Tobias, Senior ... John Anders, Head of Quality at Nanotherapeutics, Inc., ... that can speed detection and quantitation while achieving ...
(Date:7/10/2014)... July 10, 2014 Terascala, the industry ... that Alan Swahn, a former vice president of product ... as vice president of marketing. Terascala’s software when combined ... NetApp create the highest performance and most reliable solutions ... to guide Terascala’s channel expansion and broaden its product ...
Breaking Biology Technology:Global 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 3Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 2Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 3Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Terascala Expands Executive Team 2Terascala Expands Executive Team 3
... Wisconsin , , Editors Note: The Wisconsin ... NorthStar Economics 60-page report titled, the NorthStar Guide to ... primer for Wisconsin companies seeking information about risk capital available ... to excerpt their report in four-installments on WTN over the ...
... WI Futurist William Gibson is often quoted ... evenly distributed yet. Many speakers at the first annual ... to make a point about the current state of healthcare ... of Wisconsin (MCW) . , ,Featured presenters at the conference ...
... Toni Sikes of Guild.com , , WTN: What's the ... Sikes: In my opinion, it will be the continuous ... technology and e-commerce companies lies in better connecting customers with ... and technology communities must improve every element that surrounds our ...
Cached Biology Technology:Community Development Venture Capital 2Community Development Venture Capital 3Community Development Venture Capital 4Community Development Venture Capital 5Community Development Venture Capital 6Networking of Healthcare Information 2The Next Big Thing in E-Commerce - Guild.com CEO comments on Wisconsin's technology vision 2
Mouse monoclonal [M7-PB-E9] to pan alpha Sodium Potassium ATPase ( Abpromise for all tested applications)....
Transcription factor Sp2. [Source:Uniprot/SWISSPROT;Acc:Q02086] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
... Rabbit monoclonal [EP282Y] to Asparagine ... all tested applications). ... corresponding to residues in the ... Entrez GeneID: ...
Rabbit Anti-melatonin (different linkage) Polyclonal Antibody...
Biology Products: