Colwellia cameronii[2] Colwellia marinimaniae is a hyperpiezophilic bacterium from the genus Colwellia which has been isolated from deep regions of the Mariana Trench.

[1][2][3][4] It is, so far, the most piezophilic organism yet described, with an optimal growth pressure of 120 MPa (approximately 1,200 atmospheres).

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