Figure 4

Morphometry of palisade mesophyll cells in orb1 mutants. (a–j) Diagrams of the subepidermal layer of palisade mesophyll cells from (a–e) first- and (f–j) third-node leaves. (k) Palisade mesophyll cell area in first and third-node leaves. Plants were collected 21 das. Scale bars indicate 50 µm. Asterisks indicate values significantly different from the corresponding wild type in a Student’s t-test (***p < 0.001, n ≥ 600).