The Dissociation of Morphogenesis from Cell Division in the Cellular Slime Mould, Dictyostelium discoideum
نویسندگان
چکیده
منابع مشابه
Control of cell differentiation in the cellular slime mould Dictyostelium discoideum.
s of Communications 565th Meeting of the Biochemical Society University of Stirling 9 and 10 September 1976 CONTROL M ECH AN ISMS I N D I FFER ENTl AT1 ON AND DEVELOPMENT: a Colloquium organized by L. Stevens (Stirling) Control of Cell Differentiation in the Cellular Slime Mould Dictyostelium discoideum
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We have studied optical density wave propagation during aggregation of the cellular slime mould Dictyostelium discoideum in a quantitative manner by digital image analysis. The waves arc mostly single ended spiral waves starting from an aggregation center. We can measure a variety of parameters such as oscillation frequency, wave propagation velocity and wave shape. This allows the construction...
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We have measured fruiting body density and spore formation efficiency in Dictyostelium discoideum as functions of initial cell density. Experiments were performed on agar made up with distilled water and on buffered agar. Minor differences are seen; these are discussed. The functions show 4 regions of density dependence which can be accounted for by changes in aggregation characteristics with d...
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The growing D. discoideum cells were killed in a dose-dependent manner when exposed to 100 and 140 ppm of arsenic (As2O3) at mid-log phase for 20 min. Reduced plaque sizes and changed cell and colony morphologies were observed in the treated cells. Endocytotic functions (both phagocytosis and pinocytosis) were also inhibited in the treated cells. Arsenic treated cell showed a lower DNA and prot...
متن کاملControl of cellular differentiation by temperature in the cellular slime mould Dictyostelium discoideum.
The effects of low temperature on morphogenesis and cellular differentiation of Dictyostelium discoideum were examined. During incubation at 5 degrees C, the vegetative and preaggregation cells never developed, but cell masses at the aggregation or slug stage developed to form hemispherical, or dumbbell-shaped multicellular structures. By staining with FITC-antispore IgG, the structures formed ...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1960
ISSN: 0022-1287
DOI: 10.1099/00221287-23-2-287