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- Title
Fenoxycarb, a carbamate insect growth regulator, inhibits brassinosteroid action.
- Authors
Shinsaku Ito; Kojiro Kawada; Yasumasa Saeki; Takeshi Nakano; Yasuyuki Sasaki; Shunsuke Yajima
- Abstract
Brassinosteroids (BRs) are steroid hormones that regulate plant growth, development, and stress resistance. In this study, we evaluated the effect of agrochemicals on dark-induced hypocotyl elongation, which is regulated by BRs, to identify novel chemicals that regulate BR action. We found that the juvenile hormone agonist fenoxycarb inhibited dark-induced hypocotyl elongation in Arabidopsis. Treatment with the same class of juvenile hormone agonist, pyriproxyfen, did not affect hypocotyl elongation. Co-treatment with fenoxycarb and BR partly canceled the fenoxycarb-induced hypocotyl suppression. In addition, gene expression analysis revealed that fenoxycarb altered the BR-responsive gene expression. These results indicate that fenoxycarb is a BR action inhibitor.
- Subjects
INSECT growth regulators; JUVENILE hormones; STEROID hormones; GENE expression; PLANT growth; AGRICULTURAL chemicals; PLANT regulators
- Publication
Journal of Pesticide Science, 2023, Vol 48, Issue 3, p107
- ISSN
1348-589X
- Publication type
Article
- DOI
10.1584/jpestics.D23-015