Results 121 to 130 of about 2,390 (165)

Control of antigen formation in ciliates [PDF]

, 1967
Sommerville, J.
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The effect of radiations on genetic mechanisms of paramecium aurelia

Journal of Cellular and Comparative Physiology, 1950
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Mitochondrial chromatin in Paramecium aurelia

Molecular and General Genetics MGG, 1980
Chromatin-like structures have been observed in material extracted from the mitochondria of Paramecium aurelia and evidence is presented which establishes that these structures do not originate from nuclear contamination of mitochondrial preparations but are exclusively of mitochondrial origin.
E. Olszewska, A. Tait
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The classes of endosymbiont of Paramecium Aurelia

Journal of Cell Science, 1969
ABSTRACT The endosymbionts of Paramecium aurelia appear to consist of a number of different Gram-negative bacteria which have come to live within many strains of paramecia. It is not known whether in nature this relationship is mutually beneficial or not.
John R. Preer, G. H. Beale, A. Jurand
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The metabolism of stigmasterol and cholesterol by Paramecium aurelia

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1971
Abstract 1. 1. Paramecium aurelia , stock 299, can be grown in axenic culture only when supplemented with fatty acids and an appropriate sterol. The metabolic fate of nutritionally active stigmasterol and inactive cholesterol was determined. 2. 2. Stigmasterol is converted to 7-dehydrostigmasterol.
E.S. Kaneshiro, J.R. Landrey, Robert L. Conner, W.J. van Wagtendonk   +3 more
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Paramecium aureliaRevisited

Journal of Eukaryotic Microbiology, 2005
Abstract.The speciesParamecium aureliasensu latu, containing 15 sexually isolated subspecies (syngens), is the classic example of a sibling species complex in the ciliates. Using DNA sequence comparison, it is now possible to see whether this example parallels other studied sibling species complexes.
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The Nutrition of Paramecium aurelia, Stock 299

The Journal of Protozoology, 1969
SYNOPSIS. Paramecium aurelia, stock 299 (symbiote‐free) was cultivated in a synthetic medium consisting of amino acids, vitamins, purine and pyrimidine derivatives, fatty acids, stigmasterol, sodium acetate and salts. The medium supported the continued growth of this stock in serial subculture. Populations up to 17,000 organisms/ml were obtained in 9
W. J. Van Wagtendonk, A. T. Soldo
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Extranuclear DNA and the Endosymbionts of Paramecium aurelia

Nature New Biology, 1971
THE basis of cytoplasmic inheritance in the killer system of Paramecium aurelia has been located to endosymbionts* in the cytoplasm. Breeding experiments have shown the maintenance and replication of some of the endosymbionts in their cellular environment to depend on nuclear genes of the Paramecium host cell1.
Ian Gibson, J. Williams, Michael Chance
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Interspecies transfer of mitochondria in Paramecium aurelia

Molecular and General Genetics MGG, 1976
Erythromycin-resistant mitochondria from species 1, 5 and 7 of P. aurelia were injected into erythromycin-sensitive paramecia of each of the same three species. Mitochondria from species 1 and 5 were successfully transferred to all three species, but species 7 mitochondria failed to develop in species 1 and 5.
G. H. Beale, J. K. C. Knowles
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The classes of kappa in Paramecium aurelia *

Journal of Cell Science, 1972
ABSTRACT Kappas (bacterial symbionts containing R bodies) have been studied in 16 strains of Para mecium aurelia, syngens 2 and 4. All produce toxins capable of killing sensitive paramecia. The first major class, the 51 group (consisting of the kappas of strains 51, 116, and 298), has R bodies which, when the pH is lowered below 6·5 ...
Louise B. Preer, Jr Jr Preer, B. M. Rudman, A. Jurand   +3 more
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