<Tr> <Td_colspan="2"> <P> Pseudomonas salinaria Harrison and Kennedy 1922 Serratia salinaria (Harrison and Kennedy 1922) Bergey et al. 1923 Flavobacterium (subgen . Halobacterium) salinarium (Harrison and Kennedy 1922) Elazari - volcani 1940 Halobacter salinaria (Harrison and Kennedy 1922) Anderson 1954 Halobacterium salinarium (Harrison and Kennedy 1922) Elazari - Volcani 1957 Halobacterium halobium (Petter 1931) Elazari - Volcani 1957 Halobacterium cutirubrum (Lochhead 1934) Elazari - Volcani 1957 </P> </Td> </Tr> <P> Pseudomonas salinaria Harrison and Kennedy 1922 Serratia salinaria (Harrison and Kennedy 1922) Bergey et al. 1923 Flavobacterium (subgen . Halobacterium) salinarium (Harrison and Kennedy 1922) Elazari - volcani 1940 Halobacter salinaria (Harrison and Kennedy 1922) Anderson 1954 Halobacterium salinarium (Harrison and Kennedy 1922) Elazari - Volcani 1957 Halobacterium halobium (Petter 1931) Elazari - Volcani 1957 Halobacterium cutirubrum (Lochhead 1934) Elazari - Volcani 1957 </P> <P> Halobacterium salinarum is an extremely halophilic marine Gram - negative obligate aerobic archaeon . Despite its name, this is not a bacterium, but rather a member of the domain Archaea . It is found in salted fish, hides, hypersaline lakes, and salterns . As these salterns reach the minimum salinity limits for extreme halophiles, their waters become purple or reddish color due to the high densities of halophilic Archaea . H. salinarum has also been found in high - salt food such as salt pork, marine fish, and sausages . The ability of H. salinarum to survive at such high salt concentrations has led to its classification as an extremophile . </P> <P> Halobacteria are single - celled, rod - shaped microorganisms that are among the most ancient forms of life and appeared on Earth billions of years ago . The membrane consists of a single lipid monolayer surrounded by an S - layer . The S - layer is made of a cell - surface glycoprotein, which accounts for approximately 50% of the cell surface proteins . These proteins form a lattice in the membrane . Sulfate residues are abundant on the glycan chains of the glycoprotein, giving it a negative charge . The negative charge is believed to stabilize the lattice in high - salt conditions . </P>

How would you classify halobacterium salinarum as to salt needs