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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A study of the nutritional and environmental factors influencing the growth and maintenance of a desert strain of Physarum Pusillum Martin

Gaertner, Frank Herb, 1938- January 1962 (has links)
No description available.
2

The macrocysts of Dictyostelium purpureum

Hirschy, Robert Allen. January 1963 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1963. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 59-61).
3

A comparative study of some strains of the Guttulinaceae

Hsia, Wen-Cheng. January 1962 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1962. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 60-62).
4

Cellular slime molds of the family Guttulinaceae

Kurzynski, Terrence Allan, January 1968 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1968. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
5

British Columbia slime-moulds

Halley, Elizabeth Mary January 1934 (has links)
[No abstract available] / Science, Faculty of / Botany, Department of / Zoology, Department of / Graduate
6

Laboratory studies of competition in two species of cellular slime molds : Dictyostelium discoideum and Polysphondylium pallidum

McQueen, Donald James January 1970 (has links)
The mechanics of a short term interspecific competitive situation and some of the consequences of long term interspecific competition were studied in the laboratory using two species of cellular slime mold; Dictyosteliuin discoideum and Polysphondylium pallidum. The mechanics of competition were studied using a components method in which the process was divided into component parts. These were assessed experimentally, modelled mathematically, and linked together to form a computer model, the predictions of which were tested in the laboratory. Five major components contributed to the competitive situation. These were: exploitation, toxic interference, the effect of physical factors or external forces, the availability of resources, and the number of potential competitors engaged in exploitation and interference. The exploitation component depended upon all of the sub-components which contributed to the life cycle of the cellular slime mold species. These were: the time required for spore germination, the rate and form of amoeba colony expansion, the time required for fruiting body production, and the rate and form of fruiting body colony expansion. Both species interfered with the other's ability to form fruiting bodies. In mixed cultures, D. discoideum amoebae divided and consumed food between 9° and 27°C but D. discoideum fruiting did not occur above about 24°C. In mixed cultures, P. pallidum amoebae divided and consumed food between 18° and 37°C but P. pallidum fruiting bodies did not form below about 24°C. In both cases interference was mediated by temperature and competitor numbers. Temperature, the representative external force, altered the parameter values of all the sub-components contributing to exploitation and interference. When all of the components were assessed they were incorporated into a computer model which was used to predict the area occupied by the fruiting bodies of both species. The simulation was tested 324 times and was accurate in 90.1% of the cases. The long term experimental studies of the consequences of continued competition revealed that after a period of continued competition P. pallidum overcame the effects of D. discoideum inhibition and fruited in the presence of D. discoideum. When grown alone P. pallidum fruited from 18° to 37°C and D. discoideum fruited from 9° to 27°C. In mixed cultures, before competition, P. pallidum fruited from about 24° to 37°C and D. discoideum from about 9° to 24°C. In mixed cultures, after continued competition, P. pallidum fruited from about 20° to 37°C and D. discoideum from about 9° to 24°C. Apparently P. pallidum converged towards D. discoideum, and at the same time D. discoideum increased its rate of resource use, and diverged away from P. pallidum. The data suggested that interference was related to the production of chemicals during the aggregation stage. It is possible that acrasin, the chemical which attracts amoebae to aggregation centers is involved. Experimental evidence also suggested that the change experienced by P. pallidum might have resulted from para-sexuality. This entails the production of diploid spores, the recombination of alleles, and chromosome loss, all of which tend to protect recessive and less fit characteristics. / Science, Faculty of / Zoology, Department of / Graduate
7

A comparative study of yellow pigmented Dictyostelia

Broderick, Lynne Sechrist, January 1965 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1965. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 93-97.
8

Studies in the Acrasieae from Kansas soils

Wiley, Bonnie Jeanne January 2011 (has links)
Digitized by Kansas State University Libraries
9

Myxomycetes of Kansas

Brooks, Travis Epps. January 1941 (has links)
LD2668 .T4 1941 B72 / Master of Science
10

Versuch eines Systems der Mycetozoen

Rostafinski, Jósef Tomasz, January 1873 (has links)
Inaug.-diss.-Strassburg. / Vita, p. [22].

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