Halophiles are organisms inhabiting areas with high concentration of salts. Thename halophiles means 'salt loving'. Heliophytes are the plants that grow best in sunlight and can not survive in dark conditions.
Methanogens are the bacteria that produce methane as a metabolic byproduct under anaerobic conditions.
Thermoacidophiles are archaebacteria able to survive under strong acidic environments and high temperatures, but cannot tolerate high salt concentrations around them.