What are alkaliphiles?
Many bacteria and fungi are known to bear alkaline pH upto 9 but prefer pH optimum near neutrality. The examples of true alkaliphiles are Bacillus strains like Bacillus alcalophilus and B pasteuri. Some cyanobacteria like Microcystis aeruginosa, Plectnonema nostocorum and some species of Spirulina are also alkalophilic.
Halobacterium, Natronobacterium and Natronococcus is the category of alkalophiles found in saline lakes with high pH.