. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. INFLUENCE OF CO, ON OXYGEN CONSUMPTION 57 ° C. Initial gas samples were secured in Bailey bottles as in the experiments with Paramecinin. The tubes were then rotated on their long axes thirty to sixty times a minute at the equilibration temperature. Under these conditions the eggs were evenly distributed throughout the suspension. Cleavage proceeded in the normal manner, but it was somewhat delayed in time. A quantitative study of the retardation in cleavage at different carbon dioxide tensions will be published else- whe
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. INFLUENCE OF CO, ON OXYGEN CONSUMPTION 57 ° C. Initial gas samples were secured in Bailey bottles as in the experiments with Paramecinin. The tubes were then rotated on their long axes thirty to sixty times a minute at the equilibration temperature. Under these conditions the eggs were evenly distributed throughout the suspension. Cleavage proceeded in the normal manner, but it was somewhat delayed in time. A quantitative study of the retardation in cleavage at different carbon dioxide tensions will be published else- where by Haywood and Root (1930). Eighty to one hundred per cent cleavage was obtained in all the air tonometers except those indicated in Table V. Cytolysis during the experiments was not observed when fertilized eggs were used, although unfertilized eggs were found to be extremely fragile. TABLE V Respiration of Fertilized Arbacia Eggs at Different Carbon Dioxide Tensions Respiration in Respiration in R Q t\f\ T? o t\f\ Tonometer A Tonometer B IvcillU O2 IxtitlO CO" Experi- COz Tensions Con- Pro- ment in sumption duction No. Tonometer B 02 CO2 02 CO2 B B Con- Pro- KG Con- Pro- RQ J sumed duced sumed duced .,4. mm. Hg cc. cc. cc. cc. 1 2 3 4* 5 6 7 8 9 10* 11 12 13 27
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
