. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. Morphology 733 widely in nature seems to be indicated by the fact that cases of infection have been known to occur from the spines of barley and other cereals. Berestnew* succeeded in isolating the organisms from hay and straw. Morphology.—A complete ray-fungus consists of several distinct zones composed of different elements. The center is composed of a granular mass containing numerous bodies resembling micro- cocci or spores. Extending from this cente
. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. Morphology 733 widely in nature seems to be indicated by the fact that cases of infection have been known to occur from the spines of barley and other cereals. Berestnew* succeeded in isolating the organisms from hay and straw. Morphology.—A complete ray-fungus consists of several distinct zones composed of different elements. The center is composed of a granular mass containing numerous bodies resembling micro- cocci or spores. Extending from this center into the neighboring tissue is a radiating, branched, tangled mass of mycelial Fig. 29g.—Colony or granule of actinomyces in a section throuuh a lesion showing the Gram-stained filaments and hyaline material and also the pus- cells surrounding the colony (Wright and Brown). In an outer zone these threads are seen to terminate in conspicuous, club-shaped, radiating forms which give the colonies their rosette- like appearance. The clubs are inconspicuous in the human lesions of the disease. The pleomorphism of the organism and the branched network it forms class it among the higher bacteria in the genus Actinomyces. When the clumps formed in artificial cultivations of the parasite are properly crushed, spread out, and stained, the long mycelial threads, fi in thickness, occasionally show flask- or bottle- like expansions—the clubs—at the ends. These probably depend * "Centralbl. f. Bact.," etc., Ref., 1898, No. 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 McFarland, Joseph, 1868-. Philadelphia and London, W. B. Saunders Company
Size: 2722px × 918px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbacteri, bookyear1916
