linkedin post 2015-04-04 06:36:46

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PROTEIN LATTICES. "Some halophiles make use of the protein bacteriorhodopsin. This compound of bacterioopsin and retinal is found in the membranes of some halophiles in lattice shaped areas, giving the membrane a purple color and sometimes covering more than 50% of the entire membrane surface. The function of this protein is to act as a light dependant proton pump." https://lnkd.in/dFvvrKf View in LinkedIn
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linkedin post 2015-04-05 05:41:22

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GENETIC SHIFTS. "Investigations with piezophilic isolates have identified genes required for growth at elevated pressure, pressure responsive genes and gene products, and general categories of cellular processes which, if disrupted, result in specific growth impairment at high pressure. Examples of these processes include cell division and membrane homeostasis." https://lnkd.in/d4AhBiy View in LinkedIn
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linkedin post 2015-04-05 05:37:35

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DIFFERENT METABOLISM. "At the molecular level, the responses of microorganisms that are not high-pressure adapted to elevated pressures have revealed fundamental differences in cellular metabolism and regulatory processes as compared to microorganisms that specifically thrive under elevated pressures (piezophiles)." https://lnkd.in/d4AhBiy View in LinkedIn
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linkedin post 2015-04-05 05:32:41

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PRESSURE SENSITIVE AMINO ACIDS. "Deep-sea microbes preserve membrane functionality at high pressure and low temperature by increasing the percentage of unsaturated fatty acids in their lipids ... A proline to glycine substitution in staphylococcal nuclease which both increased the stability of the protein to elevated pressure as well as decreased chain mobility." https://lnkd.in/d45ecD4 View in LinkedIn
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linkedin post 2015-04-05 05:28:18

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BEYOND THE LIMIT. "The combined effect of pressure and temperature on the phase state of a membrane from a deep-sea bacterium existing at 100 MPa and 2 °C is equivalent to an identical membrane at atmospheric pressure and -18 °C (lower than the low temperature limit for life)." https://lnkd.in/dvfGnsZ View in LinkedIn
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linkedin post 2015-04-05 05:22:14

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PRESSURE KILLS MOST CELLS. "Studies have been undertaken using the moderately piezotolerant Escherichia coli, where it has been found that pressures higher than 10 MPa inhibit motility; 20-50 MPa, cell division; 50 MPa, DNA replication; 58 MPa, protein synthesis; and 77 MPa, RNA synthesis." https://lnkd.in/dvfGnsZ View in LinkedIn
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linkedin post 2015-04-05 05:12:43

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HOT AND COLD. "Chemosynthetic communities of microorganisms, often associated with invertebrate hosts, exist in the deep sea at hydrothermal vents and cold seeps. Hydrothermal vents are fissures in the ocean floor that leak hot, acidic water. Cold seeps are additional sites of fluid release from the seafloor that are frequently present along the borders of continental plates." https://lnkd.in/d4AhBiy View in LinkedIn
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