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Geisler, M., Frangne, N., Gomès, E., Martinoia, E., and Palmgren, M.G. The ACA4 Gene of Arabidopsis Encodes a Vacuolar Membrane Calcium Pump That Improves Salt Tolerance in Yeast.
Figure 4 was erroneously printed in black and white. It has been reprinted in color on p 1342. 
