Abstract
Chlorella is eukaryotic microorganisms belongs to green microalgae that has been receiving interests in commercial and scientific field as well. It also has a high photosynthetic capability and can grow harshly under heterotrophic and mixotrophic conditions. Chlorella is a potential source for protein and nowadays is used as human food and animal feed. Chlorella is also containing large amount of carbohydrates, oil and perfect feedstock for biofuels. Using Chlorella to produce biofuel is still under developing. Chlorella allow us to decrease amount of CO2 efficiently and to remove nutrients of phosphorus and nitrogen, making it a better candidate for greenhouse gas biomodulation and wastewater bioremediation. Current studies on Chlorella shows that It has a potential as an expression host for recombinant protein production, which can alter the current used one, though challenges remain to be addressed, performing omics analyses on certain Chlorella strains, which may help to uncover the biological implications of Chlorella and facilitate the future exploration of industrial application.

Key words: chlorella, taxonomny, ultrastructure, applications, biomitigation