priming
nounPronunciation: /ˈpraɪmɪŋ/
A treatment process that enhances plant stress tolerance by pre-exposing them to mild stress conditions.
Full Definition
Priming in abiotic stress research refers to the conditioning of plants through exposure to sublethal stress levels, which subsequently improves their tolerance to more severe stress episodes. This phenomenon involves the activation of stress memory mechanisms at the cellular and molecular level, including epigenetic modifications, altered gene expression patterns, and enhanced antioxidant systems. Priming treatments can include controlled drought, temperature fluctuations, salt exposure, or chemical applications. The primed state enables faster and more effective stress responses, often termed 'stress memory,' which can sometimes be transmitted to subsequent generations.
Plain English
A way to help plants become more resistant to harsh conditions by first exposing them to milder versions of those same stresses.
In Editorial Context
A treatment methodology commonly reported in experimental studies that requires careful description of protocols and timing to ensure reproducibility and proper peer evaluation.
Etymology & History
Concept borrowed from immunology and psychology, adapted to plant stress biology as understanding of plant memory mechanisms developed.
Originally described for seed treatments, now expanded to include various pre-conditioning strategies throughout plant development.
Usage
"The manuscript's priming protocol section requires revision to specify exact stress intensities and duration parameters for reproducibility."
Usage note: Should specify the type of priming stress and subsequent challenge stress
Context: experimental methodology, treatment descriptions, stress tolerance studies
Region: international
Also known as
Contrasted with
Don't confuse with
Often confused with adaptation, but priming is a specific short-term conditioning process rather than long-term evolutionary adaptation