. Bacteria in relation to plant diseases. Bacteria; Plant diseases. Fig. 56.* Fig 57-t bundles) have become blocked up by the invading organism to such an extent that transpiration greatly exceeds water-supply. An early death as the result of the action *Fig. 56.—Cross-section of an internodal bundle in sweet-corn, showing restriction of Bacterium stewarti to the xylem part of the bundle. The result of a pure-culture inoculation made in the seedling stage by placing the bacteria on the tips of young leaves. Material collected and fixed in October 1902. The entire stem at this level contains 28
. Bacteria in relation to plant diseases. Bacteria; Plant diseases. Fig. 56.* Fig 57-t bundles) have become blocked up by the invading organism to such an extent that transpiration greatly exceeds water-supply. An early death as the result of the action *Fig. 56.—Cross-section of an internodal bundle in sweet-corn, showing restriction of Bacterium stewarti to the xylem part of the bundle. The result of a pure-culture inoculation made in the seedling stage by placing the bacteria on the tips of young leaves. Material collected and fixed in October 1902. The entire stem at this level contains 287 vascular bundles, of which all but 10 are occupied by the bacteria. In every instance (?) the bacteria are still confined to the xylem part of the bundle. Slide 248 A 6. fFio. 57.—Diagrammatic longitudinal section through lower half of a sweet-corn kernel attacked by Bacterium stewarti, the areas occupied by the bacteria being drawn in solid black (lower left-hand side). 5, envelope of the grain; St, starchy part; E, scutellum; P, plumule; R, radicle; B, base of kernel. The starchy part was very soft when embedded and is squeezed together and upper part torn away. A detail from X is shown in fig. 58, A. Slide 485 (7. X 14. From Golden Bantam corn grown from diseased seed in the summer of 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 Smith, Erwin F. (Erwin Frink), 1854-1927. Washington, Carnegie Inst.
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