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Scientific classification

Parke, 1949

Isochrysis is a genus of haptophytes. It includes the species Isochrysis galbana, Isochrysis litoralis and Isochrysis maritima.[1]

The genus Isochrysis also contains Tisochrysis lutea. It is a brown-golden marine microalga. T. lutea is a flagellated microalgae with ovoid shape, measuring 4 to 6 μm in diameter. It is equipped with two flagelles thanks to which it moves according to a helical movement.[citation needed]

T. lutea is one of the most widely used species in aquaculture to feed oyster and shrimp larvae. It has an interesting composition for this application because of its high content of polyunsaturated fatty acids such as docosahexaenoic acid (DHA), stearidonic acid and alpha-linolenic acid.[2] T. lutea contain betain lipids and phospholipids.[3]


  1. ^ Guiry, M.D.; Guiry, G.M. (2008). "Isochrysis". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.
  2. ^ Renaud, S. M.; Zhou, H. C.; Parry, D. L.; Thinh, Luong-Van; Woo, K. C. (1995). "Effect of temperature on the growth, total lipid content and fatty acid composition of recently isolated tropical microalgae Isochrysis sp., Nitzschia closterium, Nitzschia paleacea, and commercial species Isochrysis sp. (clone T.ISO)". Journal of Applied Phycology. 7 (6): 595–602. doi:10.1007/BF00003948.
  3. ^ Kato, Misako; Sakai, Miho; Adachi, Kyoko; Ikemoto, Hisato; Sano, Hiroshi (1996). "Distribution of betaine lipids in marine algae". Phytochemistry. 42 (5): 1341–5. doi:10.1016/0031-9422(96)00115-X.