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Airborne signals synchronize the defenses of neighboring plants in response to touch

Markovic, Dimitrije and Colzi, Ilaria and Taiti, Cosimo and Ray, Swayamjit and Scalone, Romain and Ali, Jared Gregory and Mancuso, Stefano and Ninkovic, Velemir (2019). Airborne signals synchronize the defenses of neighboring plants in response to touch. Journal of experimental botany. 70, 691-700
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Abstract

Plants activate defense-related pathways in response to subtle abiotic or biotic disturbances, changing their vola-tile profile rapidly. How such perturbations reach and potentially affect neighboring plants is less understood. Weevaluated whether brief and light touching had a cascade effect on the profile of volatiles and gene expression of thefocal plant and a neighboring untouched plant. Within minutes after contact,Zea maysshowed an up-regulation ofcertain defense genes and increased the emission of specific volatiles that primed neighboring plants, making themless attractive for aphids. Exposure to volatiles from touched plants activated many of the same defense-relatedgenes in non-touched neighboring plants, demonstrating a transcriptional mirroring effect for expression of genesup-regulated by brief contact. Perception of so-far-overlooked touch-induced volatile organic compounds was ofecological significance as these volatiles are directly involved in plant–plant communication as an effective trigger forrapid defense synchronization among nearby plants. Our findings shed new light on mechanisms of plant responsesto mechanical contact at the molecular level and on the ecological role of induced volatiles as airborne signals inplant–plant interactions.

Authors/Creators:Markovic, Dimitrije and Colzi, Ilaria and Taiti, Cosimo and Ray, Swayamjit and Scalone, Romain and Ali, Jared Gregory and Mancuso, Stefano and Ninkovic, Velemir
Title:Airborne signals synchronize the defenses of neighboring plants in response to touch
Series/Journal:Journal of experimental botany (1460-2431)
Year of publishing :2019
Volume:70
Page range:691-700
Number of Pages:10
Publisher:Oxford University Press, Society for Experimental Biology
ISSN:1460-2431
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Botany
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:gene expression, host plant acceptance, plant–plant communication, priming, Rhopalosiphum padi, terpenes, touch, volatile organic compounds, Zea mays
URN:NBN:urn:nbn:se:slu:epsilon-e-5205
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-5205
Additional ID:
Type of IDID
DOI10.1093/jxb/ery375
ID Code:15879
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:05 Feb 2019 09:31
Metadata Last Modified:05 Feb 2019 09:31

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