. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 0 -2 TIME IN MINUTES FIGURE 1. The effect of PCMB on the gliding movement of Oscillatoria at different con- centrations. From 0 to 40 minutes, materials were in NaCl solutions at 10~2 M (O—O), 10~3 M (•—•) and 10~4 M (O—O) ; and at 40 minutes, NaCl solutions were replaced with 10~3 M PCMB + lO-2 M sodium (O—O), 1Q-4 M PCMB + 1Q-3 M sodium (•—•) and with 1Q-5 M PCMB + 10-4 M sodium (O—O). Oscillatoria (10~3 M) : As done above, Oscillatoria were first placed in NaCl solutions which served as the control. The motion of the fila
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 0 -2 TIME IN MINUTES FIGURE 1. The effect of PCMB on the gliding movement of Oscillatoria at different con- centrations. From 0 to 40 minutes, materials were in NaCl solutions at 10~2 M (O—O), 10~3 M (•—•) and 10~4 M (O—O) ; and at 40 minutes, NaCl solutions were replaced with 10~3 M PCMB + lO-2 M sodium (O—O), 1Q-4 M PCMB + 1Q-3 M sodium (•—•) and with 1Q-5 M PCMB + 10-4 M sodium (O—O). Oscillatoria (10~3 M) : As done above, Oscillatoria were first placed in NaCl solutions which served as the control. The motion of the filaments, however, was not in- fluenced in NaCl at the concentration of 10'2 M or less. When 10~2 M NaCl was replaced with 10~3 M PCMB containing 10~2 M sodium, the motion of the filament slowed down and stopped within three minutes and no resumption of motion occurred in the same medium within 20 hours. (10'4 M') : With 10"4 M PCMB, the motion decreased, gradually resulting in a complete standstill after 10 minutes. There was no visible change in cell morphology over the observation period of 18 hours. (10"5 M) : With 10^5 M PCMB, the gliding motion of the filament was no longer affected at all. These results are illustrated in Figure 1. Nitsschia (10 4 M) : The artificial sea water medium was replaced with the artificial sea water containing PCMB. In the plain medium, no change was observable. About. 30 40 -10 - TIME IN MINUTES FIGURE 2. The effect of PCMB on the gliding movement of Nitzschia at different concen- trations. From 0 to 20 minutes, cells were placed in Van't Hoff artificial sea water, and at 20 minutes, medium was replaced with the artificial sea water containing 10~4 M (O—O) and 10-5 M (•—•) 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 Biolo
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
