Talk about Halophiles.

Live in areas where salt concentration is high, used for production for kitchen salt, most extreme ones live in (12-23% NaCl) cell walls, ribosomes and enzymes are stabilized by Na+ they are slightly aerobic, can be chemheterotroph, for some light intervenes in synthesis of ATP without intervention of chlorophyll pigment. ATP production is due to protein, bacteriorhodopsin present in plasma membrane, giving pink color to colonies forming masses in sea water.