Figure 40.

FRUIT WITHOUT FERTILIZATION restricts fruit development in the absence of fertilization. (A) Comparison of the lengths of a wild-type gynoecium at anthesis (a), a wild-type fruit seven days after pollination (p), an unpollinated wild-type fruit 7 days post-anthesis (up), and an unpollinated fwf parthenocarpic fruit (fwf up). (B) Longitudinal section of a wild-type valve at anthesis. The exocarp (x), mesocarp (m), enb, ena, and ovule (o), are labeled. (C) Longitudinal section of a pol-linated wild-type valve. (D) Longitudinal section of a fwf unpollinated valve. Cell expansion is increased and cell division is reduced relative to wild-type pollinated siliques. (E) Longitudinal section of an fwf pollinated valve, which has developed indistinguishably from wild type. Scale bar in A represents 3 mm. Scale bar in B-E represents 50 µm. A-E: from Vivian-Smith et al., 2001.