Navigation Links
Team shows how the honey bee tolerates some synthetic pesticides
Date:7/20/2011

studies had shown that cytochrome P450s in honey bees play a key role in their tolerance of pyrethroid pesticides, such as tau-fluvalinate, which is used to kill mites in the hive. But no previous study had identified specific cytochrome P450s in bees or in other pollinating insects that contribute to pyrethroid tolerance, Berenbaum said.

In a series of experiments, the team identified three cytochrome P450s in the honey bee midgut that metabolize tau-fluvalinate. They discovered that these enzymes also detoxify coumaphos, a structurally different organophosphate pesticide that also is used to kill mites in bee hives.

"This suggests that these honey bee cytochrome P450s are not particularly specialized," Berenbaum said. "That raises the possibility that a nontoxic dose of tau-fluvalinate may become toxic if an enzyme that is principally involved in its detoxification is otherwise occupied with a different chemical."

The evidence also suggests that honey bees were "pre-adapted" to detoxify pyrethroid pesticides, Berenbaum said. Pyrethroids are similar in structure to naturally occurring defensive compounds, called pyrethrins, produced by some flowering plants. Honey bees have likely had a long history of contact with pyrethrins, which are found even in some flowers in the daisy family. It appears that the same enzymes that helped the honey bees detoxify the pyrethrins in nature may also help them tolerate this relatively new pesticide exposure.

The new findings should enhance efforts to develop mite control methods that are even less toxic to bees, Berenbaum said.


'/>"/>

Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. New approach to treating cystic fibrosis lung infection shows promise
3. Research shows Brazilian acai berry antioxidants absorbed by human body
4. Wildfires cause ozone pollution to violate health standards, new study shows
5. New CU-Boulder study shows diversity decreases chances of parasitic disease
6. U of MN study shows link between gene variations and cancer survival
7. New study shows drinking your vegetables may be a solution to bridging the vegetable gap
8. Mounting evidence shows health benefits of grape polyphenols
9. Research shows that the pill does not deserve its reputation for causing weight gain
10. New journal shows half-broken gene is enough to cause cancer
11. Research shows that time invested in practicing pays off for young musicians
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Team shows how the honey bee tolerates some synthetic pesticides
(Date:7/7/2015)... , July 7, 2015  Based on ... Frost & Sullivan recognizes Credence ID, LLC with ... Entrepreneurial Company of the Year Award. Credence ID ... aid in its mission of offering enrollment and ... globally. As Credence ID was formed by experts ...
(Date:7/2/2015)... , July 2, 2015 Fingerprint ... FPC1025, FPC1035, FPC1145 and FPC1155 from the distributor World Peace ... of FPC,s distributors in Asia . Deliveries ... The sensors will be used by smartphone manufacturers in ... is included in the communicated revenue guidance of approximately 2,200 ...
(Date:6/26/2015)... , June 26, 2015 ATL Technology, LLC, a ... with specialties in single use solutions, headquartered in ... Inc. (a California corporation with locations ... San Jose, Costa Rica ). This ... Rica with ATL Technology,s existing facility in ...
Breaking Biology News(10 mins):Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5FPC Receives Order for Touch Fingerprint Sensors of 268 MSEK 2ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2
... from two research teams at the Polytechnic Institute of ... be used to understand and influence the complex swimming ... Porfiri, associate professor of mechanical and aerospace engineering at ... PLOS ONE . These studies are the ...
... scent marking to advertise their territory they urinate at ... It has been suggested that markings serves to attract females ... males, scent marks appear to be a secondary sexual trait, ... mate. When male house mice are subordinate or sick, for ...
... regarded as a fully-paid up member of the junk food ... versions found on supermarket shelves or delivered to your door ... and a little cheese, combined to form a traditional, healthy ... new members to their posse salt and saturated fat. ...
Cached Biology News:The secret's in the (robotic) stroke 2The secret's in the (robotic) stroke 3Scent marking 2Pizza perfect! A nutritional overhaul of 'junk food' and ready-meals is possible 2Pizza perfect! A nutritional overhaul of 'junk food' and ready-meals is possible 3
(Date:7/30/2015)... , CA (PRWEB) , ... July 30, 2015 ... ... the successful completion of a field clinical study of its canine osteoarthritis stem ... together with Aratana Therapeutics (Kansas City, KS) and will be marketed in the ...
(Date:7/30/2015)... , July 30, 2015  With over 60,000 customers across the globe, ISN improves ... 450 hiring organizations with more than 60,000 safe and reliable contractors in over 80 countries. ... ... Over ... Headquartered in Dallas, TX ...
(Date:7/30/2015)... , July 30, 2015  Discovery Laboratories, ... it has received the second $1.0M tranche under ... Research (SBIR) grant valued at up to $3.0 ... aerosolized KL4 surfactant as a potential medical countermeasure ...  Discovery Labs was awarded an initial $1.0 million ...
(Date:7/29/2015)... , July 30, 2015 ... reports results for the second quarter of 2015. ... group,s results and its performance in different businesses. ... http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire Topics ... Q2 results - Performance drivers ...
Breaking Biology Technology:VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 2VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 3ISN Reaches Over 60,000 Worldwide Customers 2ISN Reaches Over 60,000 Worldwide Customers 3Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 2Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 3
... Germany, March 17 The rating,agency Moody,s has ... Ba3 to,Ba2 with "Outlook stable"., As a ... and its,refinancing possibilities are substantially enhanced. Moody,s justifies,this ... profile as,a result of successful acquisitions and in ...
... MASI ), the inventor of Pulse CO-Oximetry and Measure-Through,Motion ... scheduled,to present at the Citi Investment Research 5th Annual Small ... NV on Wednesday, March,19, 2008 at 2:25 p.m. PT. Joe ... Vice President and CFO, will be presenting., A live ...
... 19 at 10:00 AM EDT, CEDAR KNOLLS, N.J., ... will host a conference call discussing,its financial results for ... Wednesday, March 19, at 10:00 AM EDT., The ... through the,company,s Web site at: http://www.emisphere.com . The ...
Cached Biology Technology:Moody's Raises Rating for Gerresheimer 2Masimo to Present at Citi Investment Research 5th Annual Small & Mid-Cap Conference 2Emisphere Technologies, Inc. Announces Conference Call for 2007 Fourth Quarter and Year End Financial Results 2
Opticon continuous fluorescence detector; includes optical base, analysis software, computer and monitor (this is an accessory for the DNA Engine thermal cyclers which must be ordered seperately)...
... sensitive laser confocal systems designed for rapid ... that meet your expectations, differentiating between a ... the signal on the bottom as well ... for increased sensitivity. Results with VersArray ChipReader ...
Bio-Plex Manager software, version 3.0, 5 license netshare, is a five-user software package that provides access to data from the Bio-Plex suspension array system from a server. This version does not...
... an automated multiplexing platform that uses advanced ... sequence detection and pharmacogenetics applications. Multiple samples ... an open and flexible electronic microarray, the ... all tests sites have been utilized. This ...
Biology Products: