- Approximately 140 species of Closterium
have been described, with 88 found in North America. Closterium
is most common in the benthic or periphytic communities of acidic,
oligotropic lakes and ponds. However, some species also inhabit
alkaline, eutrophic environments. Closterium aciculare
and Closterium acutum are often found among cyanobacterial
blooms. They sometimes form bloom conditions themselves and indicate
eutrophic waters.
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- At low light concentrations, Closterium
may utilize glucose through mitochondrial respiration.
At high irradiance levels, glucose is utilized
via chlororespiration, a form of respiration within the chloroplast.
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