Figure 1.
Compensation Does Not Maintain the Overall Size and Shape of Leaves
(A) Gross morphology of the sixth leaf of wild-type Columbia (wt: left) and KRP2-over-expressor (o/x: right) plants. There are significant differences in the size and shape of the leaves. Scale bar, 1 mm. (B) A paradermal view of the first layer of palisade tissue from the leaves shown in panel (A): Left, wt Columbia, and right, KRP2-o/x. Scale bar, 100 μm. Note the increase in cell size (a result of compensated cell enlargement) in the KPR2-o/x.
Figure 2.
The Mysterious Relationship between Polyploidy and Organ/Cell Size
Diploid, tetraploid, and octaploid Arabidopsis Columbia plants, two weeks after sowing, are shown from left to right. (A) Gross morphology of the plantlets. The octaploid plant has smaller leaves compared to the diploid and tetraploid plants. c, cotyledon. Unit of scale, 1 mm. (B) Paradermal view of the palisade cells in the first leaves. From left to right, diploid, tetraploid, and octaploid. Bar, 100 μm.
Figure 3.
A Comparison of Diploid and Tetraploid Bin4 Mutant Plants to Diploid and Tetraploid Wild-Type Columbia Plants
Tetraploidization partially recovered the dwarfism observed in the diploid bin4 mutant. See [29] for further details. Unit of scale, 1 mm.