Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

WSU ecologist says defense by plants to disease may leave them vulnerable to insect attack

26.08.2003


Some of the defenses plants use to fight off disease leave them more susceptible to attack by insects, according to a Don Cipollini, Ph.D., a chemical ecologist at Wright State University.



Cipollini, an assistant professor of biological sciences, will present a research paper on this topic at the annual meeting of the Ecological Society of America in Savannah, Ga., on Tuesday, Aug. 5. Some 3,000 national and international scientists are expected to attend the meeting.

“Plant Resistance and Susceptibility” is the title of the session in which Cipollini will present his paper. “My research shows that induction of a particular plant response to pathogens that results in enhanced resistance to disease (termed systemic acquired resistance) can nullify the induction of resistance to feeding by some insects,” he explained. “This interaction can result in the unfortunate tradeoff where plants become resistant to some diseases, but more susceptible to some insects. This phenomenon represents an ecological cost of resistance.”


His study, done in collaboration with researchers at the University of Chicago, illustrates the effects of salicylate, a natural plant chemical, on resistance of the plant species Arabidopsis thaliana to the beet armyworm larvae (Spodoptera exigua). Salicylate is chemically similar to the aspirin that humans take, and it functions in nature to heighten plant defenses to pathogens, or disease-causing microbes. When applied to plants, salicylate can interfere with the induction of resistance to some insects, however, leaving them more susceptible to insect feeding damage.

Cipollini’s research, which has funding support from the U.S. Department of Agriculture, has implications for crop plants in which salicylate-mediated defenses have been either genetically engineered or chemically manipulated. It also illustrates natural constraints on the evolution of plant resistance.

A major research interest of the Wright State scientist is how plants cope with insects and diseases. This includes examining biochemical mechanisms of resistance, as well as the ecological costs and benefits of plant responses to pests.

Cipollini, who received a WSU Presidential Award for Faculty Excellence Early Career Achievement earlier this year, has been invited to present his induced defense research at international symposia in Australia and Canada next year.

For more information on his research, contact Cipollini at 937-775-3805 or don.cipollini@wright.edu. The Web page for Ecological Society of America is http://www.esa.org and Cipollini’s research Web page is http://www.wright.edu/~don.cipollini.

Richard Doty | Wright State University
Further information:
http://www.wright.edu/cgibin/news_item.cgi?519
http://www.esa.org
http://www.wright.edu/~don.cipollini

More articles from Ecology, The Environment and Conservation:

nachricht A new indicator for marine ecosystem changes: the diatom/dinoflagellate index
21.08.2017 | Leibniz-Institut für Ostseeforschung Warnemünde

nachricht Value from wastewater
16.08.2017 | Hochschule Landshut

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

On the way to developing a new active ingredient against chronic infections

21.08.2017 | Life Sciences

Smart Computers

21.08.2017 | Information Technology

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>