| Title: | Herbivore-induced volatile emission in black poplar: regulation and role in attracting herbivore enemies |
| Author(s): | Clavijo McCormick A; Irmisch S; Reinecke A; Boeckler GA; Veit D; Reichelt M; Hansson BS; Gershenzon J; Kollner TG; Unsicker SB; |
| Address: | "Department of Biochemistry, Max Planck Institute for Chemical Ecology, 00745, Jena, Germany" |
| ISSN/ISBN: | 1365-3040 (Electronic) 0140-7791 (Linking) |
| Abstract: | "After herbivory, plants release volatile organic compounds from damaged foliage as well as from nearby undamaged leaves that attract herbivore enemies. Little is known about what controls the volatile emission differences between damaged and undamaged tissues and how these affect the orientation of herbivore enemies. We investigated volatile emission from damaged and adjacent undamaged foliage of black poplar (Populus nigra) after herbivory by gypsy moth (Lymantria dispar) caterpillars and determined the compounds mediating the attraction of the gypsy moth parasitoid Glyptapanteles liparidis (Braconidae). Female parasitoids were more attracted to gypsy moth-damaged leaves than to adjacent non-damaged leaves. The most characteristic volatiles of damaged versus neighbouring undamaged leaves included terpenes, green leaf volatiles and nitrogen-containing compounds, such as aldoximes and nitriles. Electrophysiological recordings and olfactometer bioassays demonstrated the importance of nitrogenous volatiles. Under field conditions, parasitic Hymenoptera were more attracted to traps baited with these substances than most other compounds. The differences in volatile emission profiles between damaged and undamaged foliage appear to be regulated by jasmonate signalling and the local activation of volatile biosynthesis. We conclude that characteristic volatiles from damaged black poplar foliage are essential cues enabling parasitoids to find their hosts" |
| Keywords: | "Animals Female Genes, Plant Genotype *Herbivory Larva Moths/parasitology/*physiology Pheromones/chemistry Plant Leaves/chemistry/physiology Populus/*chemistry/genetics/physiology Terpenes/chemistry Volatile Organic Compounds/*chemistry Wasps/*physiology B;" |
| Notes: | "MedlineClavijo McCormick, Andrea Irmisch, Sandra Reinecke, Andreas Boeckler, G Andreas Veit, Daniel Reichelt, Michael Hansson, Bill S Gershenzon, Jonathan Kollner, Tobias G Unsicker, Sybille B eng Research Support, Non-U.S. Gov't 2014/01/30 Plant Cell Environ. 2014 Aug; 37(8):1909-23. doi: 10.1111/pce.12287. Epub 2014 Mar 19" |
