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Cited by 417

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Interactive Effects of Jasmonic Acid, Salicylic Acid, and Gibberellin on Induction of Trichomes in Arabidopsis

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Traw, M. Brian, Bergelson, Joy·2003·Plant Physiology

Abstract

Leaf trichomes protect plants from attack by insect herbivores and are often induced following damage. Hormonal regulation of this plant induction response has not been previously studied. In a series of experiments, we addressed the effects of artificial damage, jasmonic acid, salicylic acid, and gibberellin on induction of trichomes in Arabidopsis. Artificial damage and jasmonic acid caused significant increases in trichome production of leaves. The jar1-1 mutant exhibited normal trichome induction following treatment with jasmonic acid, suggesting that adenylation of jasmonic acid is not necessary. Salicylic acid had a negative effect on trichome production and consistently reduced the effect of jasmonic acid, suggesting negative cross-talk between the jasmonate and salicylate-dependent defense pathways. Interestingly, the effect of salicylic acid persisted in the nim1-1 mutant, suggesting that the Npr1/Nim1 gene is not downstream of salicylic acid in the negative regulation of trichome production. Last, we found that gibberellin and jasmonic acid had a synergistic effect on the induction of trichomes, suggesting important interactions between these two compounds.

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Metadata

Authors
Traw, M. B., & Bergelson, J.
Venue
Plant Physiology
Published
2003-11-01
Volume
133
Issue
3
Pages
1367-1375
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
OpenAlex
W2164388273
Cited by
417
References
44
FWCI
15.33
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Interactive Effects of Jasmonic Acid, Salicylic Acid, and Gibberellin on Induction of Trichomes in Arabidopsis. https://app.cochat.ai/papers/10.1104/pp.103.027086
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Traw, M. B., & Bergelson, J. (2003). Interactive Effects of Jasmonic Acid, Salicylic Acid, and Gibberellin on Induction of Trichomes in Arabidopsis. Plant Physiology. https://doi.org/10.1104/pp.103.027086

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