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Terpsinoë musica is a freshwater diatom that releases oil under mechanical pressure on the cover slip. Scale bar = 10 µm. (A) Freshly collected Terpsinoë musica; (B,C) Terpsinoë musica cells kept 7 days in an incubator released oil when mechanically pressed; (D) Terpsinoë musica divides 10 days after oil release; (E) Zigzag colony of Terpsinoë musica.
