Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Kentucky researchers find a key to plant disease resistance

29.03.2011
University of Kentucky plant pathologists recently discovered a metabolite that plays a critical role early on in the ability of plants, animals, humans and one-celled microorganisms to fend off a wide range of pathogens at the cellular level, which is known as systemic immunity. This mode of resistance has been known for more than 100 years, but the key events that stimulate that resistance have remained a mystery.

The findings of the UK College of Agriculture researchers, led by Pradeep Kachroo and Aardra Kachroo, were published online in Nature Genetics March 27. Researchers from the UK Department of Statistics and Washington State University also contributed to the article.

"If you can generate systemic immunity, you can have great benefits in disease resistance," Pradeep Kachroo said. "It is particularly gratifying to be able to describe a mechanism for a type of immunity; pioneering studies were incidentally carried out by our own emeritus faculty, Joe Kuc."

Using soybeans and Arabidopsis, a model laboratory plant, the scientists were able to identify the metabolite glycerol-3-phosphate as a key mobile regulator of systemic immunity. A metabolite is a substance produced in the body through normal metabolic processes. The glycerol-3-phosphate transforms into an unknown compound and uses a protein, called DIR1 to signal systemic immunity. Scientists already identified the protein as a necessary component to trigger systemic immunity.

"The metabolite and protein are dependent on each other to transport immunity from one location in the plant tissue to the other," Pradeep Kachroo said. "Metabolite levels increase in plant tissues after the plant has been inoculated by a pathogen."

While the research was conducted on plants, Pradeep Kachroo said all organisms have a similar process of triggering systemic immunity.

"The metabolite is a highly conserved compound in all species across the board," Pradeep Kachroo said. "Another great thing is increased levels of this metabolite do not affect plant productivity, unlike other known inducers of systemic immunity."

He said the metabolite could be an effective tool to control plant diseases and enhance pathogen tolerance in plants.

In 2008, these UK plant pathologists discovered that the same metabolite was a key component in organisms' basal resistance, which allows organisms to have strong immune systems. They wondered whether there was a connection between the metabolite and systemic immunity, which led them to their current research.

Their research was funded by the National Science Foundation's Division of Integrative Organismal Systems. The plant pathologists will continue to study the process that induces systemic immunity.

"We want to know how glycerol-3-phosphate is metabolized in plants and identify various compounds derived from glycerol-3-phosphate," Pradeep Kachroo said. "We also want to know how the metabolite relates other molecules known to be important for systemic immunity."

Contact: Pradeep Kachroo, 859-257-7445 or Aardra Kachroo, 859-257-7445, ext. 81292

Katie Pratt | EurekAlert!
Further information:
http://www.uky.edu

More articles from Life Sciences:

nachricht Zap! Graphene is bad news for bacteria
23.05.2017 | Rice University

nachricht Discovery of an alga's 'dictionary of genes' could lead to advances in biofuels, medicine
23.05.2017 | University of California - Los Angeles

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

Im Focus: Bacteria harness the lotus effect to protect themselves

Biofilms: Researchers find the causes of water-repelling properties

Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

Innovation 4.0: Shaping a humane fourth industrial revolution

17.05.2017 | Event News

 
Latest News

Scientists propose synestia, a new type of planetary object

23.05.2017 | Physics and Astronomy

Zap! Graphene is bad news for bacteria

23.05.2017 | Life Sciences

Medical gamma-ray camera is now palm-sized

23.05.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>