Dictionary > Barophile

Barophile

Definition
noun, plural: barophiles
An organism that grows in high-pressure environments
Supplement
A barophile is an organism that needs a high-pressure environment in order to grow. Barophiles are a type of an extremophile. An example of a high-pressure habitat is the deep-sea environment, such as ocean floors and dee lakes where the pressure can exceed 380 atm. Another is the subsurface rocks with high lithostatic pressures.
Barophiles that cannot survive outside their high-pressure habitats are referred to as obligate barophiles. Those that can live at high pressures and in less extreme environment are referred to as barotolerants. Halomonas salaria, a Gram-negative proteobacterium, is an example of an obligate barophile. It needs a pressure of 1000 atm.
Many barophiles are sensitive to ultraviolet rays and are susceptible to UV radiation. They lack the essential mechanisms of DNA repair to counter the effects of UV radiation. Thus, many of them grow in darkness. Because of this, they also tend to be psychrophilic. That means they live under cold temperatures, e.g. about 2-3 °C below 100 m.
Another example of barophile is the xenophyophores, which are single-celled eukaryotes found in the deepest ocean trench (i.e. about 6.6 miles below the surface).
Synonym(s):

  • piezophile

See also:

  • extremophile


    You will also like...

    Lotic community of algal species
    Lotic Communities & Algae

    Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

    DNA molecule
    Genetic Control – On and Off Genes

    Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's surviv..

    Biological Viruses
    Biological Viruses

    Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...

    Photosynthesis and respiration
    Plant Metabolism

    Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..

    Genetics and Evolution
    Genetics and Evolution

    Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

    squirrel
    Animal Water Regulation

    Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..