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231227s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2023.154164
|2 doi
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|a pubmed24n1293.xml
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|a eng
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|a Kanagendran, Arooran
|e verfasserin
|4 aut
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|a Cowpea volatiles induced by beet armyworm or fall armyworm differentially prime maize plants
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 14.02.2024
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|a Date Revised 14.02.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 The Authors. Published by Elsevier GmbH.. All rights reserved.
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|a Exposure to herbivore-induced plant volatiles (HIPVs) is known to enhance the defense responses in plants. This so-called priming effect has only been marginally studied in intercropping systems. We tested whether HIPVs from cowpea, which often serves as an intercrop alongside maize, can prime herbivore-induced volatile emissions in maize. Conventional volatile collection assays and real-time mass spectrometry revealed that maize plants that were exposed to HIPVs from cowpea infested with Spodoptera exigua caterpillars emitted more than control plants when they themselves were subsequently damaged by the same pest. The enhanced emission was only evident on the first day after infestation. Maize plants that were exposed to HIPVs from cowpea infested by S. frugiperda larvae showed no priming effect and released considerably less upon S. frugiperda infestation than upon S. exigua infestation. The latter may be explained by the fact that S. frugiperda is particularly well adapted to feed on maize and is known to suppress maize HIPV emissions. Our results imply that HIPVs from cowpea, depending on the inducing insect herbivore, may strongly prime maize plants. This deserves further investigation, also in other intercropping systems, as it can have important consequences for tritrophic interactions and crop protection
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|a Journal Article
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|a Indirect defense
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|a Intercropping
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|a PTR-TOF-MS
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|a Priming
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|a Spodoptera exigua
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|a Spodoptera frugiperda
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|a Volatile Organic Compounds
|2 NLM
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|a Turlings, Ted C J
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 292(2024) vom: 10. Jan., Seite 154164
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|x 1618-1328
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|g volume:292
|g year:2024
|g day:10
|g month:01
|g pages:154164
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|u http://dx.doi.org/10.1016/j.jplph.2023.154164
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