. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RATE OF REGENERATION IN TUBULARIA 159 of regeneration R2 of the distal hydranths D\ - - D6 thus falls off sharply from ZV ; : R. U. at the distal end to ZV = R. IT. at 5 mm. The lowest rate at 0 mm. is P6{ = R. U. Thus the most distal level of the stem regenerates at almost 18 times the rate of the most 40t80 30 20 10. 25 20 15 LEVEL MM. 10 FIG. 2. Rates of regeneration at different levels of the stem of Tubularia. RI = — ; R2 = 7rr2L//i = n3- 105/hours. Stems 30 mm. in length cut into 6 pieces and t\ ligatured
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RATE OF REGENERATION IN TUBULARIA 159 of regeneration R2 of the distal hydranths D\ - - D6 thus falls off sharply from ZV ; : R. U. at the distal end to ZV = R. IT. at 5 mm. The lowest rate at 0 mm. is P6{ = R. U. Thus the most distal level of the stem regenerates at almost 18 times the rate of the most 40t80 30 20 10. 25 20 15 LEVEL MM. 10 FIG. 2. Rates of regeneration at different levels of the stem of Tubularia. RI = — ; R2 = 7rr2L//i = n3- 105/hours. Stems 30 mm. in length cut into 6 pieces and t\ ligatured in middle. Each point is the average of 10 stems, r -= radius of cross- section of stem; L = length of primordium; /i = time in hours between cutting and the formation of the primordium. The lowest rate is rate of P6- Zero mm. is at the proximal end of the stem, 30 mm. at the distal end. proximal level. This difference in rate must be due to causes inherent in the tissue at these levels since external influences have been 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
