Title: | Maize plants prime anti-herbivore responses by the memorizing and recalling of airborne information in their genome |
ISSN/ISBN: | 1559-2324 (Electronic) 1559-2316 (Print) 1559-2316 (Linking) |
Abstract: | "Intact maize plants prime for defensive action against herbivory in response to herbivore-induced plant volatiles (HI PVs) emitted from caterpillar-infested conspecific plants. The recent research showed that the primed defense in receiver plants that had been exposed to HI PVs 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 HI PV-exposed plants more frequently than in that of healthy plant volatile-exposed plants. These findings provide an innovative mechanism for the memory of HI PV-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" |
Keywords: | "Animals Gene Expression Regulation, Plant Genome, Plant/*genetics Herbivory/*physiology Volatile Organic Compounds/metabolism Zea mays/*genetics/*parasitology;" |
Notes: | "MedlineSugimoto, Koichi Arimura, Gen-ichiro eng Research Support, Non-U.S. Gov't 2013/07/28 Plant Signal Behav. 2013 Oct; 8(10):doi: 10.4161/psb.25796. doi: 10.4161/psb.25796" |