. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 46 E. S. GUZMAN BARRON, B. GASVODA, AND V. FLOOD. 30 TIME 60 IN 90 MINUTES 120 FIGURE 1. The effect of x-ray irradiation on the respiration of sea urchin sperm. Irradiation, 20,000 r. 1. Control; 2. Irradiated sperm. It was not possible to obtain similar values in the O2 uptake when the sperm was suspended in boiled sea water or in artificial sea water. The respiration of sperm in these cases was always much lower (20 to 40 per cent less). Effect oj x-rays on the respiration of sea urchin sperm Once it was established that t
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 46 E. S. GUZMAN BARRON, B. GASVODA, AND V. FLOOD. 30 TIME 60 IN 90 MINUTES 120 FIGURE 1. The effect of x-ray irradiation on the respiration of sea urchin sperm. Irradiation, 20,000 r. 1. Control; 2. Irradiated sperm. It was not possible to obtain similar values in the O2 uptake when the sperm was suspended in boiled sea water or in artificial sea water. The respiration of sperm in these cases was always much lower (20 to 40 per cent less). Effect oj x-rays on the respiration of sea urchin sperm Once it was established that the optimum dilution for the measurement of sperm respiration was 1:200, all the experiments on the effect of x-ray irradiation were TABLE II Effect of x-rays on the respiration of sea urchin sperm. Dilution 1:200. Irradiation, 20,000 r. Figures give Oz uptake per mg. dry weight per hour Exp. no. Control Irradiated Inhibition (per cent) 1 2 3 4 5 71 6 79 7 54 8 43. 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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