. Carnegie Institution of Washington publication. 3i8 BACTERIA IN RELATION TO PLANT DISEASES. The organism is wax-yellow, deeper or paler according to circumstances, changing to a dirty yellow brown in the plant and in certain old cultures. The color on coconut flesh standing in distilled water is approximately Ridgway's Naples yellow. On turnip cylinders. Fig. 117 f *Fig. 116.—Longitudinal section of a lurnip-root, showing how intercellular spaces are occupied and parenchyma cells wedged apart by Bacterium campeslre. A later stage than fig. 114. Drawn from a photomicrograph, x 475. tl'ic;. 11
. Carnegie Institution of Washington publication. 3i8 BACTERIA IN RELATION TO PLANT DISEASES. The organism is wax-yellow, deeper or paler according to circumstances, changing to a dirty yellow brown in the plant and in certain old cultures. The color on coconut flesh standing in distilled water is approximately Ridgway's Naples yellow. On turnip cylinders. Fig. 117 f *Fig. 116.—Longitudinal section of a lurnip-root, showing how intercellular spaces are occupied and parenchyma cells wedged apart by Bacterium campeslre. A later stage than fig. 114. Drawn from a photomicrograph, x 475. tl'ic;. 117.—Bacterial cavity in interior of a turnip-root (plant No. 53), due to Bacterium campeslre, which was inoculated by needle-pricks on blades of two leaves 52 days prior to fixing material. Exterior sound. Slide 115—I. 1 Irawn from a photomicrograph. {Fig. i i<S.—Cross-section of a small turnip-root, showing bacterial pockets and wide distribution of organism 111 vascular system. Inked from a photomicrograph. In a cross-section of this root lower down the writer counted [46 bundles occupied b\ masses of llie bacteria and separated by unoccupied parenchyma. Surface of root Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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