Navigation Links
Wheat can fatally starve insect predators

A newly identified wheat gene produces proteins that appear to attack the stomach lining of a crop-destroying fly larvae so that the bugs starve to death.

The gene's role in creating resistance to Hessian flies was a surprise to U.S. Department of Agriculture and Purdue University researchers, discoverers of the gene and its function. They made the finding as they investigated new, long-term methods to protect wheat from insect damage.

"This is a different kind of defense than we were expecting," said Christie Williams, a USDA-Agricultural Research Service scientist and Purdue Department of Entomology adjunct assistant professor. "Usually we expect the plant to fortify its cell walls or make poisons to use against insects and pathogens."

Instead, the researchers found that a specific protein, called HFR-3, one of a group of substances called lectins, is capable of binding with a carbohydrate complex in the Hessian fly larvae. The lectin acts as a key to the carbohydrate structure, known as a chitin.

When the larvae attack a resistant plant, the plant's lectin production quickly increases by as much as 3,000 times. The larvae then ingest the lectin. This interaction probably damages the larvae's chitin-rich mid-gut lining so that it can't absorb nutrients from the plant, causing the insects starve, Williams said.

Some Hessian fly larvae, which are called virulent, are capable of ridding their bodies of lectin and surviving. Avirulent larvae are unable to deactivate the lectin.

However, the researchers believe that plants resistant to Hessian fly invasions may make several strains of lectins in response to virulent larvae, Williams said.

Results of the study are published in the January issue of the journal Molecular Plant Pathology.

Researchers also discovered that not only do lectins damage the insect's mid-stomach, the lectins also taste bad and have some toxicity.

"By studying
'"/>

Source:Purdue University


Page: 1 2 3

Related biology news :

1. Wheat gene may boost foods nutrient content
2. Researchers find how protein allows insects to detect and respond to pheromones
3. Experiments provide proof of how traveling in groups protects insects
4. Experiments provide proof of how traveling in groups protects insects
5. Why do insects stop breathing? To avoid damage from too much oxygen, say researchers
6. Influenza vaccine uses insect cells to speed development
7. Novel compounds show promise as safer, more potent insecticides
8. DDT-resistant insects have additional genetic advantage that helps resistance spread
9. Stolen gene allows insect virus to enter cells
10. K-State researchers study insects immune system
11. K-State researchers study gene regulation in insects
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Wheat can fatally starve insect predators

(Date:7/29/2014)... bacteria and algae, propel themselves using whip-like appendages ... a millimetre long, function like tiny oars, helping ... cilia are found on the surfaces of many ... liquids over the cell. , Flagella and ... expel pathogens from our airways, they establish the ...
(Date:7/28/2014)... researchers led by the University of Arizona has sequenced ... information will enhance scientists, and agriculturalists, understanding of the ... the development of new rice varieties that are better ... solve global hunger challenges. , The paper, "The genome ... evidence for independent domestication," was published online in ...
(Date:7/28/2014)... of juvenile rat brain cells suggests that the effects ... between brain cells are temporary. , The study, published ... ONE , was conducted by biologists at the University ... in New York in response to concerns, arising from ... exposing children to general anesthetics may increase their susceptibility ...
Breaking Biology News(10 mins):Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3Generating a genome to feed the world: UA-led team sequences African rice 2Generating a genome to feed the world: UA-led team sequences African rice 3Generating a genome to feed the world: UA-led team sequences African rice 4Study suggests disruptive effects of anesthesia on brain cell connections are temporary 2Study suggests disruptive effects of anesthesia on brain cell connections are temporary 3
... first time, MIT engineers and colleagues have observed the initiation ... millions of animals in this case, fish. The ... to the conservation of marine ecosystems that vast oceanic fish ... of Science . It also confirms theories about ...
... at the Scripps Research Institute has obtained the first glimpse ... out of cells. The protein, called P-glycoprotein or P-gp for ... resistant to chemotherapy drugs. Understanding its structure may help scientists ... in the March 27, 2009, issue of the journal ...
... Conservation Society thanks The Brain Tumor Foundation and its ... performing a brain scan on a gorilla at the ... of wildlife veterinarians, zookeepers, and medical personnel from several ... Unit, a 48-foot-long MRI facility on wheels that conducted ...
Cached Biology News:Team IDs genesis of mass migrations 2Team IDs genesis of mass migrations 3Scripps scientists find structure of a protein that makes cancer cells resistant to chemotherapy 2Scripps scientists find structure of a protein that makes cancer cells resistant to chemotherapy 3Gorilla gets MRI at Bronx Zoo 2Gorilla gets MRI at Bronx Zoo 3
(Date:7/29/2014)... Denver, CO (PRWEB) July 29, 2014 ... and soiled linen collection and transport solutions for hospitals, ... Society for Healthcare Engineering (ASHE) Annual Conference & Technical ... TransVac will present its technology for making hospitals cleaner, ... operational costs over the hospital’s life cycle. Staff ...
(Date:7/29/2014)... 29, 2014 Genera Energy ... supply innovation and supply chain advancements, has announced ... systems, Energy Grange™ and Supply ASSURE™. Both ... in-the-field testing aimed at consolidating and simplifying the ... landowners, farmers and feedstock end users. , “Through ...
(Date:7/29/2014)... (PRWEB) July 29, 2014 Quorum ... services, has been awarded accreditation by the ... for its Lean Six Sigma Deployment Program. The ... and improve performance. , Quorum’s Lean Six Sigma ... Accredited Deployment Program designation. The designation is a ...
(Date:7/29/2014)... (PRWEB) July 29, 2014 The first ... a next generation approach to robotics. What sets Droidles ... patent pending technology that allows them to communicate, share ... wirelessly over the internet. , “The invention is the ... the little Droidles a life of their own, both ...
Breaking Biology Technology:TransVac Presents Cost Saving Technology at ASHE Conference for Keeping Hospitals Cleaner 2Genera Energy Introduces Proprietary Feedstock Management Systems 2Genera Energy Introduces Proprietary Feedstock Management Systems 3Genera Energy Introduces Proprietary Feedstock Management Systems 4Quorum Review IRB Accredited by IASSC for Lean Six Sigma Deployment Program 2Quorum Review IRB Accredited by IASSC for Lean Six Sigma Deployment Program 3Droidles, the Social Network of Robots and Open Source Platform for the Internet of Things, Launches for Crowd Funding on IndieGoGo.com 2
... Amnis Corporation announced today the,commercial release of ... the,ImageStream system. This technology breaks through classical depth ... improving the,performance of the ImageStream system and enabling ... hybridization (FISH).,The EDF option can be installed at ...
... Chairman recaps recent investor ... ... Whelan,President and CEO of BioElectronics Corporation (Pink Sheets: BIEL), the,developer ... operated microchip that delivers pulsed,electromagnetic therapy, today issued the following ...
... New Jersey, May 22 ,ThalesNano Inc. and ... a,research and development collaboration agreement focusing on ... focus on the development and implementation of,continuous ... The,purpose of the project is to study ...
Cached Biology Technology:Amnis Announces Release of Its Extended Depth of Field Option for The ImageStream(R) System 2BioElectronics Corporation - Substantial International Expansion Producing Sustained Revenue Growth-Company Reaches Monthly Break Even 2BioElectronics Corporation - Substantial International Expansion Producing Sustained Revenue Growth-Company Reaches Monthly Break Even 3BioElectronics Corporation - Substantial International Expansion Producing Sustained Revenue Growth-Company Reaches Monthly Break Even 4BioElectronics Corporation - Substantial International Expansion Producing Sustained Revenue Growth-Company Reaches Monthly Break Even 5BioElectronics Corporation - Substantial International Expansion Producing Sustained Revenue Growth-Company Reaches Monthly Break Even 6BioElectronics Corporation - Substantial International Expansion Producing Sustained Revenue Growth-Company Reaches Monthly Break Even 7BioElectronics Corporation - Substantial International Expansion Producing Sustained Revenue Growth-Company Reaches Monthly Break Even 8ThalesNano Inc. and sanofi-aventis R&D Collaborate on Continuous Process Chemistry in Order to Dramatically Reduce Drug Realization Time 2
Human IL-19 MAb (Clone 152112)...
... (1995) This book contains up ... current issues relating to the aetiology and ... have been made recently which greatly improve ... molecular neuropathology through clinical and diagnostic aspects, ...
Complement C1r [Human]...
... Beacon Designer designs oligos for SYBR Green, ... NASBA and FRET assays. Highly specific primers ... by automatically interpreting BLAST search results. Primer ... structures identified by connecting to the Mfold ...
Biology Products: