Navigation Links
Scientists offer recommendations for delaying resistance to Bt corn in western corn rootworm
Date:11/26/2013

Corn that contains proteins that protect it from insect damage has been grown in the U.S. since the mid-1990s. Known as Bt corn, because the proteins are derived from a bacterium called Bacillus thuringiensis, these plants have been widely grown by farmers.

While Bt corn has been highly effective against the European corn borer, it has been less so against the western corn rootworm, which has been documented to show resistance to the Bt proteins. In a new article in the Journal of Integrated Pest Management -- an open-access, peer-reviewed, extension journal -- the authors explain why this has occurred, and they recommend an integrated pest management (IPM) approach to address it.

In "Resistance to Bt Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae) in the U.S. Corn Belt," Drs. Aaron Gassmann (Iowa State University), Michael Gray (University of Illinois), Eileen Cullen (University of Wisconsin), and Bruce Hibbard (University of Missouri) examine why Bt corn has been more effective against the European corn borer, which tunnels in the stem of the plant, and less so against the rootworm, which attacks the roots.

First, Bt proteins intended for the European corn borer are produced at a higher dose than the ones intended for rootworms; this ensures that fewer corn borers are likely to survive, which lowers the chances of them producing offspring that may be resistant. Second, corn borer moths travel farther before mating, which increases the chances of potentially resistant insects mating with non-resistant ones that have not been exposed to Bt proteins; this lowers the chances of them producing resistant offspring. Finally, fitness costs -- or negative effects -- of resistance in rootworms appear to be low.

"One appr
'/>"/>

Contact: Richard Levine
rlevine@entsoc.org
301-731-4535
Entomological Society of America
Source:Eurekalert

Page: 1 2

Related biology news :

1. 5 IU scientists named AAAS Fellows for their notable contributions
2. University Of Massachusetts Medical School scientists re-imagine how genomes are assembled
3. Rice scientists ID new catalyst for cleanup of nitrites
4. Chinese scientists reveal the genomic enigma of desert poplar
5. Scientists capture redox moments in living cells
6. Scientists prove X-ray laser can solve protein structures from scratch
7. Scientists find brain region that helps you make up your mind
8. In plant photosynthesis, scientists see clues for improving solar energy cells
9. Scientists have been able to grow artificial skin using stem cells from the umbilical cord
10. Spanish scientists identify a new ancestral enzyme that facilitates DNA repair
11. UT Dallas computer scientists create 3-D technique
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) a ... the recent success of the Wocket™ smart wallet at CES 2015 in ... was named as one of the "11 Hot Products at CES" in ... At CES So Far" by Newseveryday.com and "The top 10 gadgets from ...
(Date:1/22/2015)... YORK , Jan. 21, 2015  Analyst Report Issued by ... Card Brands report showed that planet-wide, transactions at merchants on ... while the total number of credit, debit, and prepaid cards ... U.S. were victims of fraudulent card usage in 2012, and ...
(Date:1/22/2015)... Research and Markets ( http://www.researchandmarkets.com/research/wxdglm/global_wearable ) ... Wearable Technologies Market and Applications, Opportunities, Industry Analysis, ... 2014-2020" report to their offering. , ... can be worn on the user,s body and ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2
... two human beings are the same. Although we all ... many places. And since genes provide the blueprint for ... in protein function. But what impact does this diversity ... Universitaet Muenchen (TUM) have investigated how protein function is ...
... and wastewater managers are missing substantial opportunities to save ... (Sept. 4) by Water in the West, a research ... Nexus: A Literature Review," also identifies the amount of ... oil and coal, and to generate electricity. , The ...
... Researchers have known for some time that the blood vessels ... the body are more than just bodily pipelines. Arterioles and ... regulating the flow of the blood they,re carrying. Biomedical engineers ... mathematical model that explains just how they do it. ...
Cached Biology News:Wide range of differences, mostly unseen, among humans 2Report reveals missed opportunities to save water and energy 2Drexel researchers looking inside vessels to understand blood's ebb and flow 2
(Date:12/24/2014)... , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, Inc. (NASDAQ: ... areas, announced the closing of an underwritten public offering of ... to an aggregate 3,500,000 shares of common stock, at an ... The warrants have a per share exercise price of $5.00, ...
(Date:12/24/2014)... BioLife Solutions , Inc. (NASDAQ: BLFS ), a ... hypothermic storage and cryopreservation freeze media and ... ("BioLife" or the "Company"), today announced that it will hold ... (the "Annual Meeting"). Because the expected date for ...
(Date:12/24/2014)... 23, 2014 GMO corn cases filed across ... in the process of being consolidated in a Kansas federal ... Syngenta AG MIR 162 Corn Litigation, MDL No. 2591 in ... Management of the Syngenta GMO corn multidistrict litigation (MDL) has ...
(Date:12/24/2014)... MA (PRWEB) December 23, 2014 ... is designed to introduce cutting edge communication technology, ... of platform upgrades. This webinar series demonstrates online ... quest to leverage web conferencing’s most innovative and ...
Breaking Biology Technology:PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3BioLife Solutions Sets Date for Annual Meeting of Stockholders 2Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3
... , , , 77.6.6 Sample cooling ... If sensitive samples should remain cooled until the PCR takes place, the , ... ways: , , , ... Adapt an initial program and connect via a "LINK" command. , ...
... , , , 7.6.4 Long PCR , ... programmed as desired with every temperature , command, enables a , ... , With Long PCR, this function can be ... elongation. , , ...
... , , , There is obviously ... to all PCR amplifications. For example, , depending on the ... of the PCRs can differ from each other. Finding the optimal or the , ... and efficient amplification of a specific target. , ...
Cached Biology Technology:7 Programming 2PCR Optimization 2PCR Optimization 3
With L-glutamine and potassium bicarbonate. Sterile, Insect cell culture tested...
Mol wt: average mol wt12,360.96 Da by calculation...
Originally developed for the culture of Drosophila; suitable for culture of other dipteran cell lines. Powder, Insect cell culture tested...
... Adaptor encodes a T7 promoter, lac ... translation initation codon and an N-terminal GST•Tag ... reported to enhance the production and in ... partners. The GST•Tag is a multi-purpose tag ...
Biology Products: