Ethylene suppresses jasmonate-induced gene expression in nicotine biosynthesis
Related Experiment Video
Updated: Oct 10, 2026

Optimization and Utilization of Agrobacterium-mediated Transient Protein Production in Nicotiana
Published on: April 19, 2014
T Shoji1, K Nakajima, T Hashimoto
1Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Japan.
Abstract:
In Nicotiana sylvestris, a set of nicotine biosynthesis genes were activated by exogenous application of methyl jasmonate, but the activation was effectively suppressed by simultaneous treatment with ethylene. When N. sylvestris transgenic hairy roots were treated with a natural ethylene precursor, the jasmonate-responsive expression of the promoter from a nicotine pathway enzyme gene was completely suppressed, and this suppressive effect was abolished when ethylene perception was blocked with silver cation. These and additional immunoblot results suggest that ethylene signal antagonizes jasmonate signal in nicotine biosynthesis.
Related Concept Videos
Drugs Acting on Autonomic Ganglia: Stimulants
Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...
Regulation of Transpiration by Stomata
Transcription Attenuation in Prokaryotes
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
Eukaryotic Transcription Inhibitors
Eukaryotic transcription inhibitors usually contain two distinct domains, a DNA...
Gene Regulation During Sporulation
Plant Hormones

