1. Preheat oven to 350°F. Grease 8- x 4-inch loaf pan.
2. In bowl, whisk flour, cornmeal, sugar, baking powder, baking soda, and salt. In another bowl, whisk buttermilk, oil, egg white, and lemon zest until blended. Add to flour mixture, along with cherries, and stir to mix. Spread in pan.
3. Bake until toothpick inserted into center comes out clean (45-50 minutes). Cool in pan for 10 minutes, then turn out onto a wire rack and cool completely. Cut into 12 slices.