. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. NUTRITION IN LlXEl'S RUBER 217 TABLE II Distribution of ethanol-soluble counts 'minute along, the body of ligatured and nnligtttnre'1 ruber. Initial external glucosc-l*C concentration is K>-* M ; incubation time. 5 minutes at 20° C. Number of section x counts/minute error of the (± standard mean) Ligatured \Vitliout ligature 1 anterior 263 ± 47 258 ± 47 2 243 ± 30 261 ± 51 3 199 ± 61 241 ± 32 4 231 ± 27 229 ± 26 5 246 ± 43 263 ± 59 6 271 ± 59 237 ± 23 7 251 ± 47 231 ± 31 8 220 ± 17 243 ± 35 9 237 ± 30 240 ± 40 10
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. NUTRITION IN LlXEl'S RUBER 217 TABLE II Distribution of ethanol-soluble counts 'minute along, the body of ligatured and nnligtttnre'1 ruber. Initial external glucosc-l*C concentration is K>-* M ; incubation time. 5 minutes at 20° C. Number of section x counts/minute error of the (± standard mean) Ligatured \Vitliout ligature 1 anterior 263 ± 47 258 ± 47 2 243 ± 30 261 ± 51 3 199 ± 61 241 ± 32 4 231 ± 27 229 ± 26 5 246 ± 43 263 ± 59 6 271 ± 59 237 ± 23 7 251 ± 47 231 ± 31 8 220 ± 17 243 ± 35 9 237 ± 30 240 ± 40 10 246 ± 38 221 ± 26 11 251 ± 53 279 ± 60 12 posterior 239 ± 37 n = 10 264 ± 61 n = 15 (Fig. 2). Galactose uptake followed a similar entry pattern (Fig. 2). The ac- cumulation of glucose is inhibited by galactose (66% inhibition) and three gly- cosides: phlorizin (93c/c inhibition), quercetin (71% inhibition) and ouabain (29c/( inhibition). Phlorizin, the /3-glucoside of phloretin and /^-D-glucose, is a potent inhibitor of glucose permeation in a number of systems (see Crane, 1960). The permeation of glucose was not inhibited by other hexoses, or di- and trisaccharides including levulose, mannose, X-acetylglucosamine, cellobiose, maltose, trehalose, sucrose and melibiose. Amino acids, fattv acids and organic acids also failed to. S (MxICT7) 10 100 FIGURE 2. The effect of external substrate concentration on the permeation of glucose and galactose into the free hexose pool. Data is based on the mean of three samples per concen- tration of 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-; Redf
Size: 1949px × 1282px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
