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DICTYOSTELIUM DISCOIDEUM , A NEW SPECIES OF SLIME MOLD FROM DECAYING FOREST LEAVES ' By
- K. Raper
In the course of studies made in this laboratory on the amoeboid population of soil and decaying vegetable matter, myxamoebae in large numbers have been regularly encountered. Thom and Raper (8) ^… Expand
The Growth of Dictyostelium discoideum upon Pathogenic Bacteria
- K. Raper, Nathan R. Smith
- Medicine, Biology
- Journal of bacteriology
- 1 October 1939
Species of the Dictyosteliaceae, a group of pseudoplasmodiumforming slime molds, are not uncommon in nature and can be readily isolated from soils, from decaying vegetation and from the dung of… Expand
Dictyostelium polycephalum n. sp.: a new cellular slime mould with coremiform fructifications.
- K. Raper
- Biology, Medicine
- Journal of general microbiology
- 1 July 1956
D. polycephalum differs from previously known species of the genus, particularly for its formation of cell aggregates which give rise to varying numbers of long, thin migrating pseudo-plasmodia, and for the potential capacity of each to form subsequently a small coremiform fructification consisting of multiple sorocarps. Expand
Penicillin: II. Natural Variation and Penicillin Production in Penicillium notatum and Allied Species.
Penicillin production is not a unique property of this mold, and it is now recognized that this capacity is present in varying degree in almost all strains of the PeniciUium notatum-chrysogenum group. Expand
ENCYSTMENT STAGES OF DICTYOSTELIUM
Two encystment stages of cellular slime molds belonging to the genus Dictyostelium are described and the myxamoebae that comprise the nascent macrocyst undergo limited differentiation and appear as polyhedral cells with highly refractive membranes. Expand