Carbohydrate mobilization capacity
noun phrasePronunciation: /ˌkɑːrboʊˈhaɪdreɪt moʊˌbɪlɪˈzeɪʃən kəˈpæsɪti/
The ability of plants to break down stored reserves (starch, sucrose) and remobilize glucose and other monosaccharides to tissues requiring energy during stress-induced growth arrest or recovery. This capacity involves coordinate regulation of hydrolytic enzymes and transport mechanisms.
Plain English
The speed and efficiency with which plants access stored sugars to fuel survival and recovery when growth is limited by stress.
Etymology & History
Usage
"Carbohydrate mobilization capacity determines survival duration during extended drought when photosynthetic carbon fixation declines."
Style guide notes: Distinguish from 'carbohydrate remobilization efficiency' which has more specific quantitative meaning; capacity is broader descriptive term.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What carbohydrates do plants mobilize during stress?
Primarily starch stored in chloroplasts and roots, along with vacuolar sucrose and other soluble carbohydrates.
How is carbohydrate mobilization regulated during stress?
ABA and sugar-sensing mechanisms upregulate hydrolytic enzymes (amylases, invertases) while reducing biosynthetic enzyme activity.
Why Test Candidates on This?
Relevant for understanding plant survival strategies and resource allocation during prolonged stress when photosynthesis is compromised.
Required skill level: Senior