Allelopathic stress signaling
noun phrasePronunciation: /ˌæliːəˈpæθɪk ˈstres ˈsɪɡnəlɪŋ/
The biochemical communication pathway triggered when plants encounter allelopathic compounds from competing plants, resulting in growth inhibition and metabolic redirection. This stress response integrates detection of secondary metabolites with defensive and adaptive gene expression.
Plain English
The plant's reaction to chemical signals from neighboring plants that inhibit growth and trigger defense responses.
Etymology & History
Usage
"Allelopathic stress signaling in rice seedlings suppresses lateral root development when exposed to phenolic compounds from decomposing residue."
Style guide notes: Distinguish between allelopathic effects and competition for resources; specify allelopathic compound identity when known.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What compounds trigger allelopathic stress signaling?
Phenolic acids, flavonoids, and terpenoids from competing plants activate receptor pathways and transcription factors.
How do plants detect allelopathic compounds?
Root absorption and foliar contact activate signaling cascades involving calcium, hormones, and reactive oxygen species.
Why Test Candidates on This?
Allelopathic stress signaling is relevant for understanding crop-weed interactions and intercropping system compatibility.
Required skill level: Expert