A new Michael Jordan of toxins isn’t required to increase crop protection against bugs as long as the right genes are strategically placed to take their shots at destructive insects, researchers report.
Plants modified with protectant genes designed to kill resistant insects can extend the usefulness of currently used pest-control methods and delay the development of pesticide-resistant bugs, according to Purdue University scientists and their collaborators from the University of Wisconsin-Madison, Monsanto Co., the University of Illinois and the University of California, Davis. The researchers’ findings appear in this month’s issue of the Journal of Theoretical Biology. "We always thought that it would take a Michael Jordan of toxins - a superstar of toxins to effectively halt insect resistance to the current generation of insecticides," said Barry Pittendrigh, a Purdue associate professor of entomology and lead author of the study. "We found that moderately effective genetically engineered protectants used in plants in the buffer zone around the main crops can play a major role in insect control, and they should be easier to identify than highly effective protectants. "You don’t find a superstar very often, but it may not be difficult to find good players, or worthwhile insect-control agents."
Farmers who use bioengineered crop protectants also use a buffer, or refuge, around the outside of fields that contains plants lacking the high-toxicity genetic modification in the main field that kills most insects. The refuge, usually about 20 percent of the acreage planted, delays development of insects resistant to the main-field, high-toxicity protectants, but some individuals in the destructive insect group have genes that allow them to survive.
Susan Steeves | EurekAlert!
Energy crop production on conservation lands may not boost greenhouse gases
13.03.2017 | Penn State
How nature creates forest diversity
07.03.2017 | International Institute for Applied Systems Analysis (IIASA)
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
24.03.2017 | Materials Sciences
24.03.2017 | Physics and Astronomy
24.03.2017 | Physics and Astronomy