Maize plants prime anti-herbivore responses by the memorizing and recalling of airborne information in their genome

Koichi Sugimoto, Gen Ichiro Arimura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Intact maize plants prime for defensive action against herbivory in response to herbivore-induced plant volatiles (hiPVs) emitted from caterpillar-infested conspecifc plants. the recent research showed that the primed defense in receiver plants that had been exposed to hiPVs was maintained for at least 5 d after exposure. herbivory triggered the receiver plants to enhance the expression of a defense gene for trypsin inhibitor (ti). at the upstream sequence of a TI gene, non-methylated cytosine residues were observed in the genome of hiPV-exposed plants more frequently than in that of healthy plant volatile-exposed plants. these fndings provide an innovative mechanism for the memory of hiPV-mediated habituation for plant defense. this mechanism and further innovations for priming of defenses via plant communications will contribute to the development of plant volatile-based pest management methods in agriculture and horticulture.

Original languageEnglish
JournalPlant Signaling and Behavior
Volume8
Issue number10
DOIs
Publication statusPublished - Oct 2013

Keywords

  • DNA methylation
  • Defense response
  • Herbivore-induced plant volatile
  • Memory
  • Plant-herbivore interaction
  • Plant-plant signaling
  • Primed defense

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