transcriptional stress-response element
nounPronunciation: /ˌtrænˈskrɪpʃənəl ˈstres rɪˈspɒns ˈɛləmənt/
Regulatory DNA sequences located in promoter regions that bind stress-responsive transcription factors, enabling rapid activation of stress-tolerance genes during abiotic stress exposure. These cis-acting elements coordinate multigenic responses through recognition by specific trans-acting proteins.
Plain English
Special DNA sequences near genes that turn on plant protective genes when environmental stress is detected.
Etymology & History
Usage
"The DRE (dehydration-responsive element) is a transcriptional stress-response element that activates drought-tolerance genes in arabidopsis."
Style guide notes: Specify element type (e.g., DRE, ABRE) when discussing particular stress-response elements for precision.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What is the difference between cis and trans elements in stress response?
Cis-elements are DNA sequences in promoters; trans-acting factors are diffusible proteins that bind cis-elements.
How do plants use stress-response elements for survival?
When stress is detected, transcription factors bind these elements, activating protective genes that enhance stress tolerance rapidly.
Why Test Candidates on This?
Important for molecular biology and plant genetics courses focusing on gene expression during abiotic stress.
Required skill level: Senior