Tetraspora is a genus of green algae in the family Tetrasporaceae of the order Chlamydomonadales, division Chlorophyta. Species of Tetraspora are unicellular green algae that exist in arrangements of four and consist of cells being packaged together in a gelatinous envelope that creates macroscopic colonies. These are primarily freshwater organisms, although there have been few cases where they have been found inhabiting marine environments and even contaminated water bodies. Tetraspora species can be found all around the globe, with the exception of Antarctica. Despite the ubiquitous presence, greatest growth of the genera's species is seen in the polar climatic zones.
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| - Tetraspora is a genus of green algae in the family Tetrasporaceae of the order Chlamydomonadales, division Chlorophyta. Species of Tetraspora are unicellular green algae that exist in arrangements of four and consist of cells being packaged together in a gelatinous envelope that creates macroscopic colonies. These are primarily freshwater organisms, although there have been few cases where they have been found inhabiting marine environments and even contaminated water bodies. Tetraspora species can be found all around the globe, with the exception of Antarctica. Despite the ubiquitous presence, greatest growth of the genera's species is seen in the polar climatic zones. (en)
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| - Illustration of "Tetraspora gelatinosa" (en)
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| - Illustration of Tetraspora gelatinosa (en)
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| - *Tetraspora gigantea
*Tetraspora giraudii
*Tetraspora godeyi
*Tetraspora hexanematoidea
*Tetraspora imperfecta
*Tetraspora intestinalis
*Tetraspora intricata
*Tetraspora lacunosa
*Tetraspora lacustris
*Tetraspora lamellosa
*Tetraspora lateralis
*Tetraspora lemmermannii
*Tetraspora limnetica
*Tetraspora lubrica
*Tetraspora nygaardii
*Tetraspora biasoletto
*Tetraspora hariot
*Tetraspora pseudovolvox
*Tetraspora risoensis
*Tetraspora simplex
*Tetraspora tenera
*Tetraspora ulvacea
*Tetraspora vandalurensis (en)
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| - Tetraspora is a genus of green algae in the family Tetrasporaceae of the order Chlamydomonadales, division Chlorophyta. Species of Tetraspora are unicellular green algae that exist in arrangements of four and consist of cells being packaged together in a gelatinous envelope that creates macroscopic colonies. These are primarily freshwater organisms, although there have been few cases where they have been found inhabiting marine environments and even contaminated water bodies. Tetraspora species can be found all around the globe, with the exception of Antarctica. Despite the ubiquitous presence, greatest growth of the genera's species is seen in the polar climatic zones. Tetraspora species are non-motile and instead of having flagella, they possess pairs of pseudoflagella which are part of the pseudociliary apparatus. On average the cell diameter of Tetraspora ranges from 6-13 μm. Energy is accumulated via photosynthesis through two cup-shaped chloroplasts, making the species primary producers. Blooms have been noted in contaminated environments due to excess augmentation of ammonia from industrial waste and are now being associated with the drop in biodiversity in such water bodies. Both sexual and asexual reproduction are possible for species within this genus. In addition, mitosis is well defined in Tetraspora species; particularly investigated in T. gelatinosa. Cell division involves elaborate arrangement of microtubules, basal body complexes and involve the use of structures like phycoplasts and protoplast. Studies have shown antimicrobial properties of certain species. In addition, Tetraspora is an important photobiological hydrogen producers and therefore is intensively being looked at for biofuel purposes. As of 2019, thirty species have been classified into this genus. (en)
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