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. 2024 Mar 13;259(4):90. doi: 10.1007/s00425-024-04362-w

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© The Author(s) 2024

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Fig. 1 — Chloroplast ultrastructure in bread wheat wild type NS67 and chlorophyll-deficient ANK-32A mutant. A, B A representative chloroplast in NS67 shows an abundant thylakoid system (A). Detail of grana stacks and intergrana thylakoids, the latter dilated and with a wavy appearance of their membranes (B). C–E A representative chloroplast in ANK-32A shows a reduced thylakoid system (C). Examples of grana and stroma thylakoids with a narrower lumen than in NS67; note some clusters of plastoglobules (D). Thylakoid overlaps occurring together with grana stacks (E). Detail of a long tubule running parallel to the envelope (F)