Tetradesmus obliquus is a green algae species of the family Scenedesmaceae.

[1][2] It is a common species found in a variety of freshwater habitats.

[4] This chlorophyte species is notable for the genetic coding of its mitochondria which translate TCA as a stop codon and TAG as leucine.

[6] There is increasing interest in T. obliquus for uses in biotechnology, such as biofuel production, aquaculture, and wastewater treatment.

[4] Both growth and photosynthesis of T. obliquus are affected by the presence of nano-sized microplastics, such as nano-polystyrene (nano-PS).