Navigation Links
Spider Venom Could Yield Eco-Friendly Insecticides

Biochemist Glenn King is searching for an alternative to chemical pesticides. King's research on insect-specific neurotoxins focuses on one the world's most efficient insect predators -- spiders. The Blue Mountains funnel-web spider (Hadronyche versuta) -- a large Australian spider with a bite that is deadly to humans and insects -- is an ideal source of venom for King's research. The spider "cooperates" by rearing up in a fighting stance when provoked, making it relatively easy for researchers to aspirate venom directly from its fangs. Since Australian funnel-web spiders can live for more than five years in captivity, a small group of these spiders yields plenty of toxins for King's chemical analysis.

Funnel-web spider venom is a complex brew of more than 100 chemical compounds, most of which are toxic to insects, but not vertebrates. King is studying the molecular structures of the toxins that selectively target the nervous systems of insects to understand the toxins' mechanism of action at the cellular level. Because these toxins do not affect the mammalian nervous system, it may be possible to use them to create environmentally friendly insecticides.

Insect pests destroy about 25 percent of the world's crops each year, despite the extensive application of chemical insecticides since World War II. The initial effectiveness of DDT in agricultural use and malaria eradication programs led many to view chemical insecticides as a panacea. But widespread use of the chemicals has boosted insects' resistance, even to increased dosages, while the environmental damage and human health risks associated with the chemicals have increased, according to King.

"We have a very good reason to look for a safer, nontoxic, and more efficient pesticide. More than a billion pounds of pesticides are sprayed in the U.S. every year. That's four pounds per person. A millionth of a pound can sometimes be deadly. And the chemical toxins that currently end up in the foo
'"/>

Source:National Science Foundation


Page: 1 2 3

Related biology news :

1. Spiders help scientists discover how muscles relax
2. Spider blood found in 20 million year old fossil
3. Biologists Crack Genetic Code for Specialized Spider Silk
4. Evolution mystery: Spider venom and bacteria share same toxin
5. Venom doc tracks down snake bioweapons
6. Novel Therapy Tested in Mice Could Chase Away Cat Allergies
7. New Breast Cancer Test Could Save Lives
8. Discovery Could Lead To Novel Approaches In HIV Treatment
9. New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal
10. Protein Discovery Could Unlock The Secret To Better TB Treatment
11. Could microbes solve Russias chemical weapons conundrum?
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Spider Venom Could Yield Eco Friendly Insecticides

(Date:9/30/2014)... Mediterranean each year, but its deep-blue waters host ... 1,000 alien species, including fish, crustaceans, and algae ... activities. In the open-access journal Frontiers in ... analyzed data from a new information system developed ... introduction of alien species has changed the native ...
(Date:9/30/2014)... watermelon, salmon, and strawberries all have in common? ... of chromosomes and are diploid, these organisms are all ... chromosomesseedless watermelon and salmon have 3 and 4 sets ... this might seem surprising, in fact most plant species ... over a century ago, but only recently, with the ...
(Date:9/30/2014)... Prenatal exposure to tetrachloroethylene (PCE) in drinking water ... abruption, according to a new study led by ... , The study, published in the journal ... 1,019 unexposed pregnancies among 1,766 women in Cape ... late 1960s to the early 1980s by the ...
Breaking Biology News(10 mins):Biodiversity in the Mediterranean is threatened by alien species 2Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 2Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 3Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 4Contaminated water linked to pregnancy complications, BU study finds 2
... an odd-looking mouse discovered through a U.S. government breeding program in ... set of ribs in its neck and nobody knew why. ... of California, San Francisco has now spilled the genetic secrets of ... new wrinkle in the genetic code an entirely unrecognized way ...
... to announce BIOLOGY OPEN (BiO), a new online only, ... of the biological sciences including cell science, developmental biology ... rapid publication for peer reviewed, scientifically sound observations and ... will address some big issues in publishing and is ...
... Two groups of small fish, one from a Caribbean island and ... fastest rates of evolution known in any organism, according to a ... found from Massachusetts to Venezuela -- and they are all pretty ... Davis graduate student working with Peter Wainwright, a professor of evolution ...
Cached Biology News:Mutant mouse reveals new wrinkle in genetic code, say UCSF scientists 2Mutant mouse reveals new wrinkle in genetic code, say UCSF scientists 3Announcing BIOLOGY OPEN from the Company of Biologists 2'Explosive' evolution in pupfish 2
(Date:10/1/2014)... METTLER TOLEDO’s newly improved XS balance ... balances as well as a dual range microbalance ... new SmartPan™ weighing pan delivers results up to twice ... balances, ergonomic design details mean users no longer need ... long periods in front of the balance. Barbara Bienlein, ...
(Date:10/1/2014)... CHICAGO , Oct. 1, 2014 ... purity Mannose (USP/NF, EP), manufactured in the ... conditions.  "Mannose has long been recognized for playing ... is a growing body of evidence that media ... and consistency of protein glycosylation," according to Dr. ...
(Date:10/1/2014)... September 30, 2014 New applications of ... that have evolved in nature over millennia are featured ... materials for applications in biophotonics in the October ... The journal is published by SPIE, the international society ... Several of the peer-reviewed articles are accessible via open ...
(Date:10/1/2014)... Sept. 30, 2014 This report ... in US$ Million by the following Product ... Enzymes. Specific end-use segments also analyzed are ... The report provides separate comprehensive analytics ... Middle East, and Latin America. Annual estimates ...
Breaking Biology Technology:METTLER TOLEDO’s XS Balance Line Delivers Performance and Ergonomics To Safeguard Health in the Workplace 2METTLER TOLEDO’s XS Balance Line Delivers Performance and Ergonomics To Safeguard Health in the Workplace 3Pfanstiehl Launches cGMP-produced Mannose for Cell Culture Media Optimization & Glycoprotein Biosynthesis 2Biomimetic and bioinspired materials enable new healthcare options, reports Journal of Biomedical Optics 2Biomimetic and bioinspired materials enable new healthcare options, reports Journal of Biomedical Optics 3Global Specialty Enzymes Industry 2Global Specialty Enzymes Industry 3Global Specialty Enzymes Industry 4Global Specialty Enzymes Industry 5Global Specialty Enzymes Industry 6Global Specialty Enzymes Industry 7Global Specialty Enzymes Industry 8Global Specialty Enzymes Industry 9Global Specialty Enzymes Industry 10Global Specialty Enzymes Industry 11Global Specialty Enzymes Industry 12Global Specialty Enzymes Industry 13Global Specialty Enzymes Industry 14Global Specialty Enzymes Industry 15Global Specialty Enzymes Industry 16Global Specialty Enzymes Industry 17Global Specialty Enzymes Industry 18Global Specialty Enzymes Industry 19Global Specialty Enzymes Industry 20Global Specialty Enzymes Industry 21Global Specialty Enzymes Industry 22Global Specialty Enzymes Industry 23Global Specialty Enzymes Industry 24Global Specialty Enzymes Industry 25Global Specialty Enzymes Industry 26
... Virent , a University of Wisconsin-Madison spinoff working ... from the Department of Energy for continued research. , ,The ... and sugar in a one-step process as part of a ... of the problems of storing hydrogen, a highly explosive gas. ...
... for the 21st Century Act, commonly called Check 21, ... electronic check imaging. , ,Check 21, which will come ... the efficiency of the payments system by legalizing the ... the physical documents. Using the substitute check, banks are ...
... live in interesting times. Not so long ago, we IT practitioners may ... moons on them. What we did was a mystery to the rest ... magic trick gone bad, there was a huge puff of smoke on ... for all the world to see. , ,Somewhere in all of that, ...
Cached Biology Technology:Wisconsin firms make acquisitions for Check 21 readiness 2IT leadership is not just for CIOs anymore 2
... workstation offers precise 96 and 384-well transfers ... 100ul and 200ul disposable tips, the 96 ... and precision across a volume range from ... two positions that enable indexing into 384 ...
... Rabbit Tissue Arrays contain 60 rabbit tissue samples ... contains 4 unstained slides and 1 hematoxylin and ... slide contains 15 different tissues from 4 rabbit ... per slide. Each tissue sample (or core) is ...
A univariate (peak height or area) quantitative multi-component analysis package....
... The new, upgraded micro 10 represents ... that brings many of the benefits of ... of the small benchtop dispenser. Dispensing accurate ... well, the micro 10 has unique advantages ...
Biology Products: