Navigation Links
Scorpion venom -- bad for bugs, good for pesticides
Date:4/27/2011

EAST LANSING, Mich. -- Fables have long cast scorpions as bad-natured killers of hapless turtles that naively agree to ferry them across rivers. Michigan State University scientists, however, see them in a different light.

Ke Dong, MSU insect toxicologist and neurobiologist, studied the effects of scorpion venom with the hopes of finding new ways to protect plants from bugs. The results, which are published in the current issue of the Journal of Biological Chemistry, have revealed new ways in which the venom works.

Past research identified scorpion toxin's usefulness in the development of insecticides. Its venom attacks various channels and receptors that control their prey's nervous and muscular systems. One major target of scorpion toxins is the voltage-gated sodium channel, a protein found in nerve and muscle cells used for rapid electrical signaling.

"Interestingly, some scorpion toxins selectively affect one type of sodium channels, but not others," Dong said. "The goal of our scorpion toxin project is to understand why certain scorpion toxins act on insect sodium channels, but not their mammalian counterparts."

Dong and a team of researchers were able to identify amino acid residues in insect sodium channels that make the channels more vulnerable to the venom from the Israeli desert scorpion. The team also discovered that an important sodium channel voltage sensor can influence the potency of the scorpion toxin.

"Investigating the venom's effect on the voltage-gated sodium channel could provide valuable information for designing new insecticides that work by selectively targeting insect sodium channels," Dong said.

Several classes of insecticides act on sodium channels, but insects become resistant to them over time. The researchers are studying how insects develop resistance and what alternatives can be created to control resistant pests, Dong added.


'/>"/>

Contact: Layne Cameron
layne.cameron@ur.msu.edu
517-353-8819
Michigan State University
Source:Eurekalert

Page: 1

Related biology news :

1. Pterygotid sea scorpions: No longer terror of the ancient seas?
2. Deathstalker scorpion venom could improve gene therapy for brain cancer
3. Scorpion venom provides clues to cause, treatment of pancreatitis
4. Phylogenetic analysis of Mexican cave scorpions suggests adaptation to caves is reversable
5. A deadly scorpion provides a safe pesticide
6. Scorpion biodiversity
7. Microscopic morphology adds to the scorpion family tree
8. Cone of poison: The secret behind the cone snails venom pump
9. Novel bee venom derivative forms a nanoparticle smart bomb to target cancer cells
10. Tarantula venom-based MD therapy to be advanced by UB scientists biotech company
11. Killer catfish? Venomous species surprisingly common, study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... CORAL SPRINGS, Florida , July 1, 2014 ... smart wallets pave way for convenience and improved security: NXT-ID, ... Google Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... ) and MasterCard Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: ... market, is pleased to announce that the second series of ...
(Date:7/10/2014)... -- According to the new market research ... Material (Optical Prism, Pizeoelectric, Capacitive, and Adhesives), Application (Mobile ... Finance), and Geography - Global Trends & Forecasts to ... Sensors Market is projected to cross $14.35 Billion by ... 2014 to 2020. Browse more than 78 ...
(Date:7/10/2014)... Sweden , July 8, 2014 ... has won a new design win (DW). An Asian OEM ... date for mass production start in August 2014.   ... Asian smartphone OEM, which has a planned date for start ... an initial ramp order of SEK 5M, for delivery in ...
Breaking Biology News(10 mins):Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Fingerprint Sensors Market worth $14.35 Billion by 2020 2Fingerprint Sensors Market worth $14.35 Billion by 2020 3FPC Wins DW and Initial Ramp Order for FPC1021 Touch Sensor for Flagship Smartphone from Asian OEM 2
... do skin cells know when to proliferate and at ... the Journal of Cell Biology , Nguan Soon ... protein called PPARβ/δ to make sure overlying epithelial cells ... between different cell types are critical to maintain the ...
... called quantum tunneling, may aid the quest for accurate, low-cost ... Nanotechnology Letters by Stuart Lindsay and his collaborators at ... a particle, say an electron, can cross a barrier, when, ... to do so. Unraveling the DNA sequences of the ...
... in Technology and Innovation in Global BiometricsGAITHERSBURG, Md., ... LMT ) has been named the Biometrics Systems ... Sullivan, recognizing the Corporation,s leadership in developing innovative ... Frost and Sullivan based the award on a ...
Cached Biology News:Time (and PPAR-beta/delta) heals all wounds 2Time (and PPAR-beta/delta) heals all wounds 3Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications 2Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications 3Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications 4Lockheed Martin Named Biometrics 'Company of the Year' by Frost and Sullivan 2
(Date:7/10/2014)... 10, 2014 Women in the ... to an additional family planning option. Sayana® Press ... at all levels of the health system and ... a widely used contraceptive—Pfizer’s Depo-Provera® (depot medroxyprogesterone acetate)—with ... is the first of four African countries expected ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Unraveling life’s ... together. The Archer Family purchased a DNA ... DNA, but ended up with a lifetime of memories, ... within the family members’ DNA genuinely brought the family ... to search deeper into genetic history and prior to ...
(Date:7/10/2014)... , July 10, 2014  Franciscan ... use of capnography for respiratory monitoring outside ... of healthcare leaders in embracing state-of-the-art patient ... effectively patients are breathing and can alert ... By measuring the amount of carbon dioxide ...
(Date:7/10/2014)... July 10, 2014   Ceres, Inc . (Nasdaq: ... company, announced today financial results for the three months ... its business. Ceres reported that the company ... performance this growing season in Brazil, which concluded in ... company,s sorghum evaluation areas for part of the growing ...
Breaking Biology Technology:Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 2Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 4Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 5Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 6Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9
... Mass. , July 14 Sermo ( http://sermo.com/client ... Client Center. Based on four years of client feedback and ... meets demands for enhanced navigation, mining and monitoring of organic ... million comments and nearly 4 million votes, Sermo is rich ...
... , AKRON, Ohio , July 13 State and Federal Communications, ... report on how states are responding to the Supreme Court,s landmark decision in ... , , To ... "Citizens United Update" in the lower left of the home page. The report is ...
... of Technology announces a new type of nanopore devices that ... example to read off their sequence. In a paper entitled ... Letters ), they report a novel technique to fabricate tiny ... a thickness of only 1 atom) and they managed to ...
Cached Biology Technology:Sermo Announces New Client Center with Advanced Mining and Monitoring of Organic Physician Dialog 2Sermo Announces New Client Center with Advanced Mining and Monitoring of Organic Physician Dialog 3Report Details How States Respond to Citizens United Decision 2DNA through graphene nanopores 2
Applications: Epitope mapping, Mapping protein-protein contacts, Identification of enzyme substrates/inhibitors, Identification of receptor agonists/antagonists...
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Request Info...
QML offers standard and customized paraffin embedded tissue blocks....
Biology Products: