Fig. 4. Root phenotypes of obe1 obe2 seedlings. (A)
Three-day-old seedlings of wild type (left) and obe1 obe2 (right).
(B,C,E,F) Toluidine Blue staining of transverse
(B,E) and longitudinal (C,F) sections of wild-type (B,C) and obe1
obe2 (E,F) roots. (D,G) Visualization of starch granules in
the central root cap of wild type (D) or obe1 obe2 (G). Scale bars: 1
mm in A; 25 µm in B-G.