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Fig. 1. Phenotypes of jag-1 mutants. (A) Wild-type rosette leaf. (B)
jag-1 rosette leaf. (C) Wild-type flower. (D) jag-1 flower.
The sepals are shorter and narrower than those of wild type and the petals are
short and narrow and do not reflect as much light as the white wild-type
petals. (E) Close-up of wild-type sepal indicates small white region at the
tip. (F) jag-1 sepal. Note jagged white tissue at tip (marked by a
bracket). (G) Close-up of wild-type petal. (H) Three examples of
jag-1 petals. Note that the distal white region (bracket) is reduced
or absent in jag-1. (I,J) Scanning electron microscopy (SEM) of
anthers. (I) Wild-type. (J) jag-1. Anthers are shorter and are spade
shaped. (K-P) SEMs of petal tips. (K,N) Adaxial side of wild-type petal
epidermis. The cells are uniformly conical with cuticular ridges. (L,O)
jag-1 petal cells are not as uniform and have elongated cells
interspersed, which have irregular cuticular ridges. These cells resemble
epidermal cells near the base of wild-type petals, shown in M,P. Scale bars:
50 µm (I,J), 20 µm (K-M) and 4 µm (N-P).
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