Fallacia cf. subhamulata, living cell in valve view (Threipmuir

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Download scientific diagram | Fallacia cf. subhamulata, living cell in valve view (Threipmuir Reservoir, near Edinburgh ), showing the simple H-shaped chloroplast (45, 48), single eccentric, invaginated, cushion-like pyrenoid (45–47: arrow in 45), and eccentric nucleus (47, with nucleolus at arrow ). 49 – Sellaphora pupula sensu stricto (Malham Tarn, N England) with prominent tetrahedral pyrenoid and simple H-shaped chloroplast. 50 – Pinnularia cf. cruciformis in girdle view (Portobello Beach, Edinburgh): detail of pyrenoid, penetrated by numerous tubular channels. 51, 52 – Marine Diploneis species (Portobello Beach, Edinburgh) in which the elongate (51) or cushion-like (52) pyrenoids are apparently invaginated (arrows). Scale bars = 10 mm. from publication: Cytological characteristics of the Sellaphoraceae | Chloroplast and pyrenoid structure are described for Sellaphora, Fallacia and Rossia (Sellaphoraceae). All have a single chloroplast per cell, which is basically H-shaped, con-sisting of two large girdle-appressed plates connected by a central isthmus, though the plates may | Chloroplast, Cytology and Chloroplasts | ResearchGate, the professional network for scientists.