Planktothrix
Genus of bacteria / From Wikipedia, the free encyclopedia
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Planktothrix is a diverse genus of filamentous cyanobacteria observed to amass in algal blooms in water ecosystems across the globe. Like all Oscillatoriales, Planktothrix species have no heterocysts and no akinetes. Planktothrix are unique because they have trichomes and contain gas vacuoles unlike typical planktonic organisms.[1] Previously, some species of the taxon were grouped within the genus Oscillatoria, but recent work has defined Planktothrix as its own genus.[2] A tremendous body of work on Planktothrix ecology and physiology has been done by Anthony E. Walsby, and the 55.6 kb microcystin synthetase gene which gives these organisms the ability to synthesize toxins has been sequenced.[3] P. agardhii is an example of a type species of the genus.[4] P. agardhii and P. rubescens are commonly observed in lakes of the Northern Hemisphere where they are known producers of potent hepatotoxins called microcystins.[5]
Planktothrix | |
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Planktothrix rubescens | |
Scientific classification | |
Domain: | Bacteria |
Phylum: | Cyanobacteria |
Class: | Cyanophyceae |
Order: | Oscillatoriales |
Family: | Microcoleaceae |
Genus: | Planktothrix Anagnostidis & Komárek, 1988 |