. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GROWTH CHARACTERISTICS OF CILIATES 59 hymena gclcii (strain W). These increases were small but constant. No significant differences could be detected between any of the media containing fermentable carbohydrates. The acidity rose from an initial pH to a final pH in those flasks containing starch, maltose, cello- biose, dextrose or levulose while it fell in all others, including the control flasks, to pH Tetrahymena vorax, although it was able to ferment starch, maltose, cellobiose, dextrose and levulose (initial
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GROWTH CHARACTERISTICS OF CILIATES 59 hymena gclcii (strain W). These increases were small but constant. No significant differences could be detected between any of the media containing fermentable carbohydrates. The acidity rose from an initial pH to a final pH in those flasks containing starch, maltose, cello- biose, dextrose or levulose while it fell in all others, including the control flasks, to pH Tetrahymena vorax, although it was able to ferment starch, maltose, cellobiose, dextrose and levulose (initial pH pH ) was dis- i 4 tr Ld Q. LJ o 6 3 o o _J 2-. 0 24 48 72 96 120 HOURS 144 168 192 216 FIG. 6. Colpidiuin campylum. Effect on growth of the addition of carbohy- drates to basic medium (1 per cent Yeast-Harris plus 2 per cent proteose peptone). All carbohydrates added in per cent concentrations. Average of 5 experiments. tinctly inhibited in its growth. Reproductive rate, length of logarithmic phase and maximum yield were decreased wherever fermentation oc- curred (see Table V for dextrose) and were unaffected (as compared with controls) in media containing carbohydrates which were not at- tacked (sucrose, lactose). The most striking results of the addition of carbohydrates were found in the cases of Glaucoma and Colpidium. These results are given in Figs. 5 and 6. The growth of Colpidium without carbohydrate was very slow and the maximum yield was low (not greater than 800 per ml.). The addi-. 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. : M
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
