| Title: | Memory of plant communications for priming anti-herbivore responses |
| Author(s): | Ali M; Sugimoto K; Ramadan A; Arimura G; |
| Address: | "Center for Ecological Research, Kyoto University, Otsu 520-2113, Japan" |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "The emission of a specific blend of volatiles in response to Mythimna separata (herbivore-induced plant volatiles, HIPVs) plays a great ecological role by priming neighbouring plants. Maize plants placed downwind of infested, conspecific plants showed reduced larval development not only immediately after exposure to HIPVs but also when receiver plants were tested after a time lag of up to 5 days, compared to those exposed to volatiles from uninfested plants and tested after the same time lag. The molecular basis of this plant memory was, in part, the similarly recalled expression of a Bowman-Birk type trypsin inhibitor (TI) gene, in a jasmonic acid induction-independent manner. Moreover, in the promoter region of TI, a suite of methylation sites was found to be demethylated by the HIPV treatment. These findings provide an innovative mechanism for the epigenetic basis of the memory of HIPV-mediated habituation for plant defence" |
| Keywords: | "Animals Cyclopentanes/pharmacology DNA Methylation DNA, Plant Disease Resistance Epigenomics Gene Expression Regulation, Plant Herbivory/*drug effects/physiology Larva/drug effects/genetics/*immunology/parasitology Oxylipins/pharmacology Plant Diseases/ge;" |
| Notes: | "MedlineAli, Mohamed Sugimoto, Koichi Ramadan, Abdelaziz Arimura, Gen-ichiro eng Research Support, Non-U.S. Gov't England 2013/05/23 Sci Rep. 2013; 3:1872. doi: 10.1038/srep01872" |
