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...

    Biosecurity and Biocontrol
    Biosecurity and Biocontrol

    This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..

    bryophyte - sporophyte and gametophyte
    Meiosis and Alternation of Generations

    Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

    Selective Breeding
    Selective Breeding

    Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..

    Electromagnetic spectrum of a brain
    Sleep and Dreams – Neurology

    While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

    Oligodendrocyte and Schwann cell
    The Central Nervous System

    Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

    Adaptation Tutorial
    Adaptation Tutorial

    Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..

    Related Articles...

    No related articles found

    See all Related Topics