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Ultrastructure of chloroplast (a,c) and nuclear (b,d) compartments in the cotyledonary SM cells of control (a,b) and salt-treated (150 mM NaCl) (c,d) tomato seedlings cv. Rekordsmen. Ch, chloroplast; gt, st, granal and stromal thylakoids, respectively; cw, cell wall; e, euchromatin; h, heterochromatin; n, nucleolus; p, plastoglobuli; sg, starch grain. Scale, 1 µm.
