Archiv für Protistenkunde, Volume 21G. Fischer, 1911 |
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Página 165 - Die Volumänderungen finden meist bei allen Luftblasen desselben Thieres gleichzeitig, in gleichem Sinne und in gleichem Maasse statt. Es kommen aber nicht wenig Ausnahmen vor. Häufig wachsen oder verkleinern sich einige viel schneller als die anderen.
Página 259 - A rhythm is a minor periodic rise and fall of the fission rate, due to some unknown factor in cell metabolism, from which recovery is autonomous.
Página 52 - Vacuolen der Infusorien und die Abhängigkeit biologischer Vorgänge von der Temperatur überhaupt. Biol.
Página 50 - Dendrocomites paradoxus STEIN, nebst einigen Bemerkungen über Spirochona gemmipara und die contractilen Vacuolen der Vorticellen.
Página 260 - The culture has been maintained by the isolation of a specimen from each of these lines practically every day, with the exception noted below. The number of divisions in each line has been recorded at the time of isolation and the average rate of these four lines has again been averaged for varying numbers of days (5, 10, or 30 days) as the exigencies of the different experiments demanded. These data have afforded...
Página 50 - Die Addition von Säuren und Alkalien durch lebendes Protoplasma. Zeitschr. f. allgem. Physiol. Bd. 5 1905. 15) — : Die Kohlensäureprodnktion vom Paramaecinm aurelia. Ibid. 16) — : Die Reaktion des Protoplasmas in ihrem Verhältnis zur Chemotaxis. Zeitschr. f. allgem. Physiol. Bd. 4 1904. 17) — Die Wirkung von Säuren und Alkalien auf lebende Paramäcium. Ibid. 18) CKRTES, ML: Sur un procede de coloration des Infusoires et des elements anatomiques pendent la vie.
Página 261 - ... number of divisions in each line has been recorded at the time of isolation and the average rate of these four lines has again been averaged for varying numbers of days (5, 10, or 30 days) as the exigencies of the different experiments demanded. These data have afforded the graphs of the division rate. Permanent preparations have been preserved from time to time for the study of the cytological changes during the life history. During the first eight months of the work the culture medium consisted...
Página 51 - Bd. 63 1905. 27) EIMER, TH. : Weitere Nachrichten über den Bau des Zellkernes nebst Bemerkungen über Wimperepithelien. Arch. f. mikr. Anat. Bd. 14.
Página 262 - September 21, 1910, at the 2000th generation. The rate of division is averaged for ten-day periods. The ordinates represent the average daily rate of division of the four lines of the culture.