Osmotic stress tolerance
nounPronunciation: /ɑːzˈmɑːtɪk ˈstrɛs ˈtɑːlərəns/
The physiological capacity of plants to maintain cellular function and growth under conditions of reduced water potential caused by drought or salinity. This involves mechanisms for osmolyte synthesis, cellular dehydration tolerance, and recovery upon rehydration.
Plain English
A plant's ability to survive and function when exposed to dry or salty conditions that reduce available water.
Etymology & History
Usage
"Osmotic stress tolerance in barley varieties was evaluated under progressive drought conditions over four growing seasons."
Style guide notes: Use 'osmotic stress tolerance' rather than 'osmotic tolerance' in formal botanical literature.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
How do plants develop osmotic stress tolerance?
Plants accumulate compatible solutes, strengthen cell walls, and enhance antioxidant systems to withstand osmotic challenges.
Why is osmotic stress tolerance important for agriculture?
It ensures crop survival and productivity in arid, semi-arid, and salt-affected soils where water availability is limited.
Why Test Candidates on This?
Frequently assessed in drought tolerance screening and salt stress studies across crop species.
Required skill level: Mid