Herbivore-specific induction of indirect and direct defensive responses in leaves and roots

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dc.citation.articleNumberplz003en_US
dc.citation.issueNumber1en_US
dc.citation.journalTitleAoB PLANTSen_US
dc.citation.volumeNumber11en_US
dc.contributor.authorXiao, Lien_US
dc.contributor.authorCarrillo, Julien_US
dc.contributor.authorSiemann, Evanen_US
dc.contributor.authorDing, Jianqingen_US
dc.date.accessioned2019-11-22T16:20:00Zen_US
dc.date.available2019-11-22T16:20:00Zen_US
dc.date.issued2019en_US
dc.description.abstractHerbivory can induce both general and specific responses in plants that modify direct and indirect defence against subsequent herbivory. The type of induction (local versus systemic induction, single versus multiple defence induction) likely depends both on herbivore identity and relationships among different responses. We examined the effects of two above-ground chewing herbivores (caterpillar, weevil) and one sucking herbivore (aphid) on indirect defence responses in leaves and direct defence responses in both leaves and roots of tallow tree, Triadica sebifera. We also included foliar applications of methyl jasmonate (MeJA) and salicylic acid (SA). We found that chewing herbivores and MeJA increased above-ground defence chemicals but SA only increased below-ground total flavonoids. Herbivory or MeJA increased above-ground indirect defence response (extrafloral nectar) but SA decreased it. Principal component analysis showed there was a trade-off between increasing total root phenolics and tannins (MeJA, chewing) versus latex and total root flavonoids (aphid, SA). For individual flavonoids, there was evidence for systemic induction (quercetin), trade-offs between compounds (quercetin versus kaempferitrin) and trade-offs between above-ground versus below-ground production (isoquercetin). Our results suggest that direct and indirect defence responses in leaves and roots depend on herbivore host range and specificity along with feeding mode. We detected relationships among some defence response types, while others were independent. Including multiple types of insects to examine defence inductions in leaves and roots may better elucidate the complexity and specificity of defence responses of plants.en_US
dc.identifier.citationXiao, Li, Carrillo, Juli, Siemann, Evan, et al.. "Herbivore-specific induction of indirect and direct defensive responses in leaves and roots." <i>AoB PLANTS,</i> 11, no. 1 (2019) Oxford University Press: https://doi.org/10.1093/aobpla/plz003.en_US
dc.identifier.digitalplz003en_US
dc.identifier.doihttps://doi.org/10.1093/aobpla/plz003en_US
dc.identifier.urihttps://hdl.handle.net/1911/107728en_US
dc.language.isoengen_US
dc.publisherOxford University Pressen_US
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/),en_US
dc.subject.keywordAbove- and below-ground interactionsen_US
dc.subject.keywordextrafloral nectaren_US
dc.subject.keywordherbivoryen_US
dc.subject.keywordsecondary chemicalsen_US
dc.subject.keywordtallow treeen_US
dc.subject.keywordtrade-offsen_US
dc.titleHerbivore-specific induction of indirect and direct defensive responses in leaves and rootsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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