Volatile Signaling in Plant-Plant Interactions: "Talking Trees" in the Genomics Era

Plants may "eavesdrop" on volatile organic compounds (VOCs) released by herbivore-attacked neighbors to activate defenses before being attacked themselves. Transcriptome and signal cascade analyses of VOC-exposed plants suggest that plants eavesdrop to prime direct and indirect defenses an...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2006-02, Vol.311 (5762), p.812-815
Main Authors: Baldwin, Ian T., Halitschke, Rayko, Paschold, Anja, von Dahl, Caroline C., Preston, Catherine A.
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Diffusion
Ecological competition
Ecology
Flowers & plants
Gene Expression Regulation, Plant
Genomics
Herbivores
Mutation
Oligonucleotide Array Sequence Analysis
Organic Chemicals - metabolism
Photosynthetically active radiation
Plant ecology
Plant Leaves - metabolism
Plant Physiological Phenomena
Plants
Plants - genetics
Plants - metabolism
Plumes
Receptors
Reviews
Seedlings
Signal Transduction
VOCs
Volatile organic compounds
Volatilization
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Summary:Plants may "eavesdrop" on volatile organic compounds (VOCs) released by herbivore-attacked neighbors to activate defenses before being attacked themselves. Transcriptome and signal cascade analyses of VOC-exposed plants suggest that plants eavesdrop to prime direct and indirect defenses and to hone competitive abilities. Advances in research on VOC biosynthesis and perception have facilitated the production of plants that are genetically "deaf" to particular VOCs or "mute" in elements of their volatile vocabulary. Such plants, together with advances in VOC analytical instrumentation, will allow researchers to determine whether fluency enhances the fitness of plants in natural communities.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1118446