Basic Technical Commonly tested

Abscisic Acid Signaling Intensity

noun

Pronunciation: /ˌæbˈsɪzɪk ˈæsɪd ˈsɪɡnəlɪŋ ɪnˈtɛnsəti/

The magnitude and speed of cellular responses to abscisic acid (ABA) signaling cascades during abiotic stress, measured by ABA receptor binding affinity, downstream kinase phosphorylation rates, and transcriptional response amplitude. This parameter determines how rapidly and effectively plants mobilize stress-defense mechanisms through ABA-mediated pathways.

Plain English

The strength and speed of how plants respond to the stress hormone abscisic acid.

Etymology & History

Origin languageLatin, Greek

Rootabscisic (separation) + acid (sour) + signaling (communication) + intensity (strength)

First recorded use1995

Usage frequencyUncommon

Usage

"High abscisic acid signaling intensity in drought-resistant wheat enabled rapid stomatal closure and stress acclimation."

Style guide notes: Abbreviate as 'ABA signaling intensity'; specify measurement method (biochemical, molecular, or phenotypic).

Also known as

ABA response amplitude ABA receptor sensitivity stress-signal transduction strength

Contrasted with

weak ABA response ABA insensitivity

Related Terms

aba receptor binding kinetics guard cell signal transduction stress responsive gene expression

Frequently Asked Questions

What does abscisic acid signaling control in plants?

ABA signaling controls stomatal closure, root growth, and expression of stress-defense genes.

Why is ABA signaling intensity important for drought tolerance?

Faster, stronger ABA signaling enables quicker adaptive responses to limit water loss during drought.

Why Test Candidates on This?

Tested in molecular plant physiology and stress-signal-transduction advanced examinations.

Required skill level: Expert

abscisic acid signaling cascade ← Back to glossary Abscisic acid signaling pathway