Abiotic stress

Abiotic Stress

Abiotic stress (pronounced: a-bi-otic stress) is a negative impact of non-living factors on the living organisms in a specific environment. The non-living variable must influence the environment beyond its normal range of variation to adversely affect the population performance or individual physiological function of a living organism to qualify as an abiotic stress.

Etymology

The term "abiotic" is derived from the prefix "a-" meaning "not, without" and the Greek word "bios" meaning "life". The term "stress" comes from the Latin word "strictus" meaning "drawn tight".

Types of Abiotic Stress

Abiotic stress is divided into different types depending on the nature of the environmental factor. These include:

• Drought Stress
• Heat Stress
• Cold Stress
• Salt Stress
• Osmotic Stress
• Oxidative Stress

Related Terms

• Biotic Stress: Stress caused by living organisms such as viruses, bacteria, fungi, etc.
• Stress Physiology: The study of how organisms respond to stress.
• Stress Tolerance: The ability of an organism to withstand stress.
• Stress Response: The changes in an organism caused by stress.

External links

• Medical encyclopedia article on Abiotic stress
• Wikipedia's article - Abiotic stress

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