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Epiplast of cryptophyte Guillardia theta. ep, epiplast en face; arrow, epiplast cross-fracture; pmP, P fracture face of plasma membrane; pmE, E fracture face of plasma membrane; pmS, etched surface of plasma membrane; asterisks, IMP-free bands in plasma membrane fracture faces. Scale bars: A, 500 nm; B and C, 200 nm.
