Fig. 8. Phenotypes of sty1-1 crc-1 and sty1-1 spt-2 double mutants. (A) crc-1 (B) sty1-1 crc-1. The style and stigmatic regions are markedly reduced (arrowhead). (C) Enlargement of the region indicated in B. The cells between the arrowheads show style cell characteristics. (D) A sty1-1 crc-1 double mutant gynoecium that has developed two style-like structures with a few stigmatic papillar cells growing from each structure. (E) Medial view of a sty1-1 crc-1 gynoecium. (F) spt-2. (G) sty1-1 spt-2. (H) sty1-1 spt-2. Mature silique. (I) Medial view of a sty1-1 spt-2 gynoecium. Lateral strands are connected to the medial stylar xylem fans. Arrowhead points to stylar xylem fans produced by both medial and lateral strands. (J) Lateral outgrowth of a sty1-1 spt-2 carpel. Ridged style cells have differentiated at the tip. (K) Apical part of a sty1-1 spt-2 gynoecium. Note the absence of stigmatic papillae. (L) Medial view of a sty1-1 spt-2 gynoecium. Medial and lateral veins enter lobate structures. Scale bars: 100 µm in A,B,D,F,G; 20 µm in J,C; 50 µm in K and 500 µm in H.

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