. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. 760 Sporotrichosis their extremities or on branches. They are arranged in cyKndrical cuffs about 10 /i in size and in glomeruh. As a matter of fact the spores are readily isolated from one another. They arise one by one in variable numbers along the mycelium, but as a rule in very large quantity in each segment of the thallus. There is no apparent order in their arrangement. So long as it rema,ins on the filament the spore appears pear-shaped. It is atta
. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. 760 Sporotrichosis their extremities or on branches. They are arranged in cyKndrical cuffs about 10 /i in size and in glomeruh. As a matter of fact the spores are readily isolated from one another. They arise one by one in variable numbers along the mycelium, but as a rule in very large quantity in each segment of the thallus. There is no apparent order in their arrangement. So long as it rema,ins on the filament the spore appears pear-shaped. It is attached by a very fine sterigma, from 1-2 M in length and from ju in width. When shed, the spore is oval. Its dimensions vary from 3-5-6 /x in length and from 2-3-4 /* in The form, the distribution and the brown color of the spores and their fructification in the form of cylindrical cuffs, arranged in branches at the extremities of the filaments, constitute together. Fig. 320.—Sporothrix schenckii. Margin of living hanging-drop cul- ture (gelatin) X about 150 (Hektcen and Perkins in "Jour, of Exper. ;). Fig. 321.—Sporothrix schenckii. Slant culture on glucose agar, eight days old (Hektoen and Perkins, in "Jour, of Exper. ;). with the original substratum of the fungus, a group of characters which differentiates Sporotrichum beurmanni sharply from all other sporotrichs (Matruchat). Hektoen and Perkins thus describe Sporotrichum schenckii: The threads of the mycelium are seen to be doubly contoured; the proto- plasm is somewhat granular and interrupted at fairly regular in- tervals by transverse septa; the diameter of the threads varies some- what, the average being about 2 m; the branches are not frequent and do not bear any fixed relations to the septa. In the hanging-drop cultures the relations of the conidia to the mycelium are very nicely shown. The spore-bearing branches which grow out in a radiating manner from the central feltwork
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbacteri, bookyear1916
