Methane bacteria possess pressure valve
http://www.innovations-report.de/html/berichte/biowissenschaften_chemie/bericht-13927.html

Michel Philippens, (NWO)Netherlands Organization for Scientific Research, Innovations Report


This report from the Netherlands Organization for Scientific Research introduces a methane-forming archaeabacterium that deliberately allows hydrogen ions to leak out of its cell. This response to changing environmental conditions may further display the physiological capabilities of bacteria living in extremely high pressure environments.

This resource is referenced here:
Subject: Biology:Microbiology
Resource Type: Scientific Resources:Research Results, Overview/Reference Work, Scientific Resources
Grade Level: Graduate/Professional, College Upper (15-16)
Extreme Environments: High Pressure
Topics: Biosphere:Microbiology