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. 2013 Jul 9;25(7):2661–2678. doi: 10.1105/tpc.113.113118

Figure 5.

Figure 5.

Thylakoid Architecture Depends on CURT1 Protein Levels.

(A) TEM micrographs of ultrathin sections of leaves from the wild type (Landsberg erecta [Ler] and Col-0), curt1 mutants, and lines expressing tagged CURT1A proteins (CURT1A-HA curt1a-2 and CURT1A-cmyc curt1a-2). Note that the CURT1A-HA curt1a-2 and CURT1A-cmyc curt1a-2 lines express ∼50 and 400% of wild-type levels of CURT1A, respectively (see Supplemental Figure 1 online).

(B) Scatterplot indicating the height (y axis) and diameter (x axis) of thylakoid stacks in the genotypes shown in (A) and (D). Average values (n ≥ 30) including the respective se are presented; a complete list of the P values, indicating the significance of the differences in grana stacking between the genotypes, is provided in Supplemental Data Set 1 online. WT, the wild type.

(C) and (D) Sections of chloroplasts as in (A) from curt1ab and curt1abcd (C) and from stn7 stn8 and tap38 mutant plants (D). Circles indicate tubuli and vesicles characteristic for curt1 mutant chloroplasts.