. Pharmaceutical bacteriology. Bacteriology; Disinfection and disinfectants. 134 PHARMACEUTICAL BACTERIOLOGY is a fact if the postulate herein submitted, to the effect that they are im- mature pulp cells, is correct. c. Nucleo-spharocytes.—These resemble the leuco-sphaerocytes as to form and as to presence of vacuoles, but differ in that they contain nuclei and distinct nucleoli and usually also brown coloring matter. The nuclei are comparatively large and resemble those of the mature pulp cells of the tomato. Dull brown to reddish brown chromophores are usually aggre- gated about the nucleus.

. Pharmaceutical bacteriology. Bacteriology; Disinfection and disinfectants. 134 PHARMACEUTICAL BACTERIOLOGY is a fact if the postulate herein submitted, to the effect that they are im- mature pulp cells, is correct. c. Nucleo-spharocytes.—These resemble the leuco-sphaerocytes as to form and as to presence of vacuoles, but differ in that they contain nuclei and distinct nucleoli and usually also brown coloring matter. The nuclei are comparatively large and resemble those of the mature pulp cells of the tomato. Dull brown to reddish brown chromophores are usually aggre- gated about the nucleus. Stock Photo
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. Pharmaceutical bacteriology. Bacteriology; Disinfection and disinfectants. 134 PHARMACEUTICAL BACTERIOLOGY is a fact if the postulate herein submitted, to the effect that they are im- mature pulp cells, is correct. c. Nucleo-spharocytes.—These resemble the leuco-sphaerocytes as to form and as to presence of vacuoles, but differ in that they contain nuclei and distinct nucleoli and usually also brown coloring matter. The nuclei are comparatively large and resemble those of the mature pulp cells of the tomato. Dull brown to reddish brown chromophores are usually aggre- gated about the nucleus. There is no evidence of the presence of an outer membrane or cell-wall. In the green tomato the nucleo-sphsero- cytes may also show chlorophyll granules aggregated about the nucleus.. Fig. 47.—Nucleo-spharocytes from hanging drop, twelve days old. A, living nucleated sphaerocytes. B, dying sphaerocytes showing extruding vacuoles. C, septation (?) as observed in hanging drop. D, a group ot dead sphaerocytes in hanging drop. The most remarkable characteristic of the nucleo-sphaerocytes is their great vitality. Crushed tomato pulp in the hanging drop incubated at 25° to 30° C. and also kept at normal room temperature, showed that the nucleo-sphaerocytes will remain alive for many months whereas the normal tissue cells and inclusive of most other forms of sphaerocytes, die almost at once or at the longest within a period of twenty-four to forty-eight hours. d. Chromo-sphcBrocytes.—These are generally larger than the nucleo- sphaerocytes and contain a variable number of reddish brown coloring bodies (chromophores), irregular in outline, .apparently identical with the coloring bodies of the tomato parenchyma. Abundant vacuoles are found. In the hanging drop, the chromophores become diffused through the plasmic substance of the sphaerocyte, losing their morphological iden- tity entirely.. Please note that these images are extracted from scanned page images that may have been