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

AoB Plants
Li XiaoJianqing Ding

Abstract

Herbivory 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 betwee...Continue Reading

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Citations

Feb 20, 2020·AoB Plants·Yingchun PeiJianqing Ding
Jul 9, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Anna Kicinska, Wieslawa Jarmuszkiewicz
Aug 28, 2020·Frontiers in Plant Science·Kyle G KochGautam Sarath
Aug 12, 2019·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Zhenyue WangChuanwang Cao
Oct 31, 2020·International Journal of Molecular Sciences·Lise PingaultGautam Sarath
May 27, 2021·Plant Science : an International Journal of Experimental Plant Biology·Gale G Bozzo, Nicole Unterlander
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Katarzyna StecBeata Gabryś
Aug 25, 2021·Environmental Microbiology Reports·Antonino MalacrinòAlison E Bennett

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