alexa Herbivory in the previous generation primes plants for enhanced insect resistance.


Journal of Plant Biochemistry & Physiology

Author(s): Rasmann S, De Vos M, Casteel CL, Tian D, Halitschke R,

Abstract Share this page

Abstract Inducible defenses, which provide enhanced resistance after initial attack, are nearly universal in plants. This defense signaling cascade is mediated by the synthesis, movement, and perception of jasmonic acid and related plant metabolites. To characterize the long-term persistence of plant immunity, we challenged Arabidopsis (Arabidopsis thaliana) and tomato (Solanum lycopersicum) with caterpillar herbivory, application of methyl jasmonate, or mechanical damage during vegetative growth and assessed plant resistance in subsequent generations. Here, we show that induced resistance was associated with transgenerational priming of jasmonic acid-dependent defense responses in both species, caused caterpillars to grow up to 50\% smaller than on control plants, and persisted for two generations in Arabidopsis. Arabidopsis mutants that are deficient in jasmonate perception (coronatine insensitive1) or in the biogenesis of small interfering RNA (dicer-like2 dicer-like3 dicer-like4 and nuclear RNA polymerase d2a nuclear RNA polymerase d2b) do not exhibit inherited resistance. The observation of inherited resistance in both the Brassicaceae and Solanaceae suggests that this trait may be more widely distributed in plants. Epigenetic resistance to herbivory thus represents a phenotypically plastic mechanism for enhanced defense across generations.
This article was published in Plant Physiol and referenced in Journal of Plant Biochemistry & Physiology

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • 7th World Summit on Plant Genomics
    July 03-05, 2017 Bangkok, Thailand
  • 3rd Global Summit on Plant Science
    August 07-09, 2017 Rome, Italy
  • 2nd International Conference on Biochemistry
    Sep 21-22, 2017 Macau, Hong Kong

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version