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  • Artikel  (5.752)
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  • 2015-2019
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  • 1940-1944
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  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . Membrane protein phosphorylation in Plasmodium berghei-infected erythrocytes was studied by incubating intact cells with (32P)orthophosphate and incubating isolated membrane with (γ-32P)ATP. Phosphorylated proteins were detected by autoradiography after sodium dodecylsulfate (SDS)-polyacrylamide gel electrophoresis or isoelectric focusing followed by gel electrophoresis. New phosphorylated proteins were found in membrane from infected erythrocytes, including a protein with electrophoretic mobility identical to band 5, with M, 43,000. The molar ratio of phosphate to protein ranged between 0.1 and 0.5. Isoelectric focusing-SDS polyacrylamide gel electrophoresis, peptide mapping, extractability properties, and reduction of susceptibility to DNase I inhibition suggested that this protein is phosphorylated actin. In contrast, spectrin phosphorylation in infected erythrocytes was mostly unchanged.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . Vairimorpha invictae n. sp. infects the red imported fire ant, Solenopsis invicta Buren, in Brazil. The parasite is dimorphic, producing two morphologically distinct types of spores, which develop sequentially in the same fat cells or oenocytes in the fat body. The binucleate free spores develop from disporous sporonts; the uninucleate octospores develop from multinucleate sporonts within a sporophorous vesicle. Infected cells are transformed into large sacs which contain both types of spores in mature adult hosts. Mature free spores are often present by the time the larvae pupate, but mature octospores are found only in adult hosts. Masses of spores may be seen through the intact cuticle by low power phase-contrast microscopy; there are no other physical signs and no behavioral signs of infection. Attempts to transmit the infection in the laboratory failed.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . Ameba to flagellate transformation in Naegleria fowleri (Lovell strain) was affected by growth temperature, phase of growth, strain of ameba, culture agitation, enflagellation temperature, enflagellation diluent, and cell concentration. Amebae transformed best when they were grown without agitation and enflagellated with agitation. Regardless of growth temperature (23°, 30°, 37°, and 42°C were tested), amebae transformed best at 37°C. Enflagellation was greatest for cells harvested between 24 h (mid-exponential) and 84 h (late stationary) of growth.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . Sporozoites of Sarcocystis capracanis and S. tenella (Apicomplexa) penetrated all four cell types tested (bovine monocytes, BM; bovine pulmonary artery endothelial cells, CPA; Madin-Darby bovine kidney; and ovine monocytes). Sporozoites of S. tenella developed to meronts in BM and CPA; those of S. capracanis developed to meronts in BM only. Both species of Sarcocystis developed to large first-generation meronts followed by small meronts. At 40 to 50 days after inoculation (DAI) of sporozoites, considerably more merozoites of S. tenella were harvested from CPA (24.9 × 106 merozoites/75-cm2 flask; n = 4) than from BM (1.9 × 106 merozoites/75-cm2 flask; n = 4). Merozoites of S. capracanis were most numerous in BM at 88 to 100 DAI during which time 2.1 × 106 merozoites/75-cm2 flask (n = 4) were harvested.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . Membrane-specific monoclonal antibodies generated against promastigotes of New World Leishmania species were used in Western blot, ELISA, and flow microfluorometric assays to characterize their antigen specificity and to determine the external surface distribution of the reactive epitopes. Three major membrane antigens of molecular weight 72 KD, 55 KD, and 42 KD were identified as well as a dominant antigen that migrated as a broad band on SDS-PAGE, corresponding to a molecular weight of 10–15 KD. By dot-ELISA this antigen was also found to be excreted by promastigotes into their culture medium. One minor membrane antigen of 25 KD and a triplet component of 66, 58, and 56 KD were also identified. While assays performed on air-dried promastigotes revealed the almost ubiquitous presence of the 72 KD and 55 KD antigens, indirect immunofluorescent staining of live promastigotes followed by flow cytometric analysis revealed that these antigens had no external exposure. Antibodies binding the 55 KD component were also reactive toward purified mammalian tubulin. The remaining antigens had a variable distribution on the eight isolates utilized, and these quantitative differences could be used to distinguish isolates of the Leishmania mexicana complex from those belonging to the Leishmania braziliensis complex.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . A new species of Herpetomonas was isolated from the intestinal tract of a mosquito, Haemagogus janthinomys, in French Guiana (South America). Ultrastructure, growth in various culture media, and morphological changes are presented. The name, Herpetomonas dedonderi, is proposed for this new species of lower trypanosomatid.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . The ciliate Loxodes has a faint yellow-brown coloration due to large numbers of electron-dense granules located in the pellicle. Absorption and action spectra both indicate the presence of a blue-light receptor, which may be a flavin. Absorbance is minimal at wavelengths greater than 500 nm; there is a major peak at 360 nm and a pronounced shoulder at 435 nm. An action spectrum based on light-induced escape from oxic water shows a peak at 435 nm and a peak or shoulder at 360 nm. The pigment will generate superoxide when illuminated in the presence of oxygen. Loxodes living in an oxygen gradient in a spectrophotometer cell swims into and remains in anoxic water at light levels ≤10 Wm-2. Loxodes can be exposed to light levels of 2–20 Wm-2 in stratified lakes so its photobehavior can explain its periodic absence from oxic water. Photosensitivity in Loxodes may function as part of a predator-avoidance strategy.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 9
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . We have determined the complete nucleotide sequence of the coding region of the small subunit rRNA gene expressed by bloodstream stages of the apicomplexan Plasmodium berghei. It is 2059 nucleotides long. Elements contributing to its relatively large size are all concentrated in regions known to be variable in length among eukaryotes. In a phylogenetic tree constructed from pairwise comparisons of eukaryotic small subunit rRNA sequences, the apicomplexan line branches at a rather early point in eukaryotic evolution before any multicellular kingdoms had yet appeared.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 10
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 33 (1986), S. 0 
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: . This paper reviews the taxonomy of the microsporidia of the family Mrazekidae Léger & Hesse, 1922, based on reexamination of slides in the collection of Prof. O. Jirovec, Prague, and discusses the available type material of Mrazekia argoisi and Bacillidium criodrili. Mrazekia argoisi differs prominently from the other species, and the genus Mrazekia is restricted to this species. The aberrant cytology and development exclude the species from the phylum Microspora. The genus Bacillidium is resurrected for the type species B. criodrili and for four other species. The genus Jirovecia is retained, and five species are transferred to this genus. A new family is erected for Bacillidium and Jirovecia. As B. criodrili does not exhibit octosporoblastic, pansporoblastic sporogony, the recent taxonomic treatment of the genus Bacillidium by Issi is rejected. Mrazekia jiroveci Sprague, 1977, the new name for B. limnodrili Jirovec, 1936, is rejected.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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