Drought-Induced Cavitation
nounPronunciation: /ˈdrɑːt ɪnˈdjuːst kævɪˈteɪʃən/
The formation of air-filled gaps in xylem vessels when water tension exceeds the cohesive strength of the water column during drought stress. This process disrupts water transport and can lead to permanent loss of hydraulic conductivity in plant vascular tissues.
Plain English
Air bubbles form in plant water-conducting tubes during severe drought, blocking water movement.
Etymology & History
Usage
"Drought-induced cavitation in drought-sensitive cultivars limits water availability to photosynthetic tissues."
Style guide notes: Use 'drought-induced cavitation' with hyphenation when modifying subsequent nouns.
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Related Terms
Frequently Asked Questions
What is drought-induced cavitation?
Formation of air bubbles in plant xylem vessels that block water transport during drought stress.
How does cavitation affect plant survival?
Cavitation reduces water availability to tissues, leading to desiccation and potential plant death.
Why Test Candidates on This?
Frequently assessed in advanced plant physiology and drought tolerance evaluations.
Required skill level: Mid