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Morphology and ultrastructure of Planktothricoides raciborskii isolated from Nanwan Reservoir. (A) Morphology of P. raciborskii under microscopy. (a) Colony filaments; (b,c) Mono-filaments; (d) Dead cells. (B) Ultrastructure of P. raciborskii by transmission electron microscopy. Cw: cell wall.
