Xenobiotic Stress
nounPronunciation: /zeɪˈnɑːbioʊtɪk stres/
Physiological stress induced by exposure to foreign chemical compounds, including synthetic pesticides, herbicides, heavy metals, and industrial pollutants that are not part of the plant's normal metabolism. These substances disrupt cellular functions through multiple mechanisms including enzyme inhibition and membrane damage.
Plain English
Plant damage caused by exposure to artificial chemicals or pollutants that interfere with normal growth and survival.
Etymology & History
Usage
"Xenobiotic stress from cadmium contamination induced phytotoxicity and reduced root elongation in sensitive plant species."
Style guide notes: Specify xenobiotic type and concentration when describing stress conditions; use 'xenobiotic tolerance' for adaptive capacity.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What types of xenobiotics affect plants?
Heavy metals, synthetic herbicides, pesticides, polycyclic aromatic hydrocarbons, and industrial solvents are common plant xenobiotics.
How do plants detoxify xenobiotics?
Plants use Phase I, II, and III detoxification mechanisms including enzymatic degradation, conjugation, and compartmentalization.
Why Test Candidates on This?
Xenobiotic stress evaluation is essential for assessing phytoremediation potential and developing stress-tolerant crops for contaminated environments.
Required skill level: Senior