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Figure 5


Fig. 5. Embryonic development of obe1 obe2 mutants. (A-N) Embryos of wild-type (A-D,I-K) and obe1 obe2 (E-H,L-N) at the early globular (A,E), transition (B,F), early heart (C,D,G,H), heart (I,L) and bent-cotyledon (J,K,M,N) stages. In B, the arrow indicates the longitudinal division of ground tissue cells. (D,H) Serial optical sections of the same embryos shown in C,G, respectively. In E, arrowhead indicates an aberrant oblique cell division. In H, inset represents magnified view of the boxed area. Arrowheads in the inset indicate the periclinal division of the protodermal cells in the apical region. K and N are higher magnification images of the basal region of embryos from J and M, respectively. h, hypophysis; lsc, lens-shaped cell; cic, columella initial cells; QC, quiescent center. Scale bars: 50 µm in A-J,L,M; 25 µm in K,N.





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