. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GROWTH CHARACTERISTICS OF PERISPIRA OVUM 265 logarithmic growth phase the generation time (calculated from the for- j. 1 O mula a = - where t = the time in hours during which the log b — log a population has been increasing, «= = the number of cells per unit volume at the beginning and b~-the number of cells at the end of the time, £) is ± .3 hours. When ciliates taken from the stationary phase (10 to 20 days old) are inoculated there follows a period of approximately u-) o 4 o • PERISPIRA o EUGLENA e VOLUME 250000 225
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GROWTH CHARACTERISTICS OF PERISPIRA OVUM 265 logarithmic growth phase the generation time (calculated from the for- j. 1 O mula a = - where t = the time in hours during which the log b — log a population has been increasing, «= = the number of cells per unit volume at the beginning and b~-the number of cells at the end of the time, £) is ± .3 hours. When ciliates taken from the stationary phase (10 to 20 days old) are inoculated there follows a period of approximately u-) o 4 o • PERISPIRA o EUGLENA e VOLUME 250000 225 000. 200000 o 75 000 < 150000 125000 100000 75000 50000 25000 5? o 24 48 72 96 120 144 168 192 216 HOURS FIG. 5. Graphic representation of data presented in Table I. 24 hours during which there is no increase in the population. Usually some of the inoculated ciliates die during this lag phase. After a con- siderable number of Euglcna have been eaten, reproduction follows and the culture goes into the logarithmic phase. The slope of the curve (and therefore the generation time) is identical with that for populations started with logarithmic ciliates (Table I; Fig. 5).. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
