Features of psychrophilic and thermophilic methanotrophic microorganisms

Psychrophilic microorganisms: challenges for life.

The ability of psychrophiles to survive and proliferate at low temperatures implies that they have overcome key barriers inherent to permanently cold environments. These challenges include: reduced enzyme activity; decreased membrane fluidity; altered transport of nutrients and waste products; decreased rates of transcription, translation and cell division; protein cold-denaturation; inappropri...

Diversity and ecology of psychrophilic microorganisms.

Cold environments represent the majority of the biosphere on Earth and have been successfully colonized by psychrophilic microorganisms that are able to thrive at low temperatures and to survive and even maintain metabolic activity at subzero temperatures. These microorganisms play key ecological roles in their habitats and include a wide diversity of representatives of all three domains (Bacte...

Proteins from thermophilic microorganisms.

INTRODUCTION .......... ....................................... 320 THE THERMOPHILIC MICROORGANISMS .......... ......................... 321 POSSIBLE MECHANISMS OF SURVIVAL .......... .......................... 322 Lipids ................................................. 322 Rapid Resynthesis ............ ..................................... 322 Thermally Stable Macromolecules ...................

isolation and characterization of thermophilic and psychrophilic lipase-producing organisms

Thermotropic Properties of Thermophilic, Mesophilic, and Psychrophilic Blue-green Algae.

Thermotropic properties of blue-green algae grown at high, room, and low temperatures in H(2)O and D(2)O media were studied by highly sensitive differential scanning microcalorimetry. The thermograms of these organisms contain an endothermal peak in the temperature range of 50 to 70 C with an endothermal heat ranging from 0.14 to 1.91 joules per gram organism. The temperature at which the endot...