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  • 11
    Electronic Resource
    Electronic Resource
    Introduction (1959)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 78 (1959), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1959.tb56113.x
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  • 12
    Electronic Resource
    Electronic Resource
    Studies of Isolated Blepharisma and Blepharisma Fragments (1956)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 3 (1956), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SUMMARY. Isolated Blepharisma undulans were studied for the following: (1) fission rate, (2) mating behavior, (3) giant formation, (4) effects of daily transections. The organisms were maintained at 22°C. and isolated daily for 60 days. Fission rate varied from two divisions a day to one in 29 days. The major factor producing the variation appeared to be the type or amount of food. Frequency of conjugation also varied greatly. Daughters of a single organism will mate within 24 hours after division. Conjugation followed by one division, re-isolation, then conjugation within 24 hours following a second division occurred within a 5 day period. Giants were produced within 3 days by feeding with Khawkinea, Chilomonas and Paramecium. Paramecium alone did not produce giants. Exposure to 10−m, 10−4M colchicine did not accelerate this process.Daily transections into approximately equal halves were made. The anterior halves containing the mouth membranelles were followed. Fission rate was not affected by cutting. A progressive decrease in size occurred. All ultimately lysed, most on the 7th day. If cutting was suspended on any day, recovery and fission followed. If cutting was re-instituted, lysis would again occur on or about the 7th day. Daily amputation of the posterior tip for 2 weeks did not affect either size, fission rate, or longevity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1956.tb02424.x
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  • 13
    Electronic Resource
    Electronic Resource
    Nucleic Acid Digestion and Macronuclear Form in Cannibal Blepharisma, New York University Strain (1962)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 9 (1962), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Cannibal giant Blepharisma undulans americanus, NYU strain, grown in mass culture, showed increased numbers of macronuclear lobes and greater variability in their number, compared to the bacteria-fed form. Feulgen and methyl greenpyronin preparations stained both the DNA and RNA of the cannibals and of the ingested forms within the food vacuoles.During the first 3 to 6 hours of digestion, macronucleus and deoxyribonucleic acid disappear from the food vacuole; during the last 6 hours the ribonucleic acid disappears from the food vacuole; DNA and RNA are therefore presumed to be digested and absorbed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1962.tb02606.x
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  • 14
    Electronic Resource
    Electronic Resource
    Improved Method for Axenizing Blepharisma by Means of Antibiotics (1979)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 26 (1979), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Synopsis.A simplified method for obtaining axenic cultures of Blepharisma involves the use of penicillin, streptomycin, and tetracycline. Cytologic examination disclosed no significant effect of these antibiotics on the structure of the ciliates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1979.tb02749.x
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  • 15
    Electronic Resource
    Electronic Resource
    Foraminifera in Samples Taken Mainly from Eniwetok Atoll in 1956 (1968)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 15 (1968), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. The foraminiferal distribution in samples from the Western Pacific collected in the summer of 1956 is presented, particularly those of the islets comprising Eniwetok Atoll. Some information is based upon samples taken shortly after atomic tests had been conducted. The distribution of foraminifera from northern islets where the tests were conducted is compared with that from the southern islets of Eniwetok Atoll. Collections from Eniwetok Atoll are compared with those made the same summer from other locations in the Southern and Western Pacific. A comparison is also made with the survey made by Cushman et al. of the Marshall Islands prior to bomb testing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1968.tb02162.x
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  • 16
    Electronic Resource
    Electronic Resource
    Blepharisma seculum, sp. nov., a Member of the Subgenus (Compactum) (1965)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 12 (1965), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Blepharisma seculum sp. nov. is described as a small-sized blepharisma with a compact, spheroid macronucleus and a distinct curvature of the body anteriorly. A comparison of this form with other species of the genus Blepharisma subgenus (Compactum) is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1965.tb03264.x
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  • 17
    Electronic Resource
    Electronic Resource
    Nuclear Structure and Mitosis in the Dinoflagellate Gonyaulax monilata (1967)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 14 (1967), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Nuclear structure and mitosis in Gonyaulax monilata were studied. Between the arms of the U-shaped interphase nucleus is a band of material which, it is suggested, is homologous with the “central body” of G. tamarensis. Histochemical studies of whole cells, extruded nuclei and Epon-embedded sections indicate that the band is composed at least in part of protein, phospholipid and possibly RNA. The chromosomes of interphase nuclei are attached to the ends of the band. The band is also attached to a proteinaceous, extra-chromosomal matrix which pervades the nucleus. Studies on material treated with trypsin indicate that the matrix may be a factor in maintaining chromosomal integrity and orientation and nuclear form. During mitosis the band acts as a point of attachment for the chromosomes, and appears to control anaphase and telophase movements. It is suggested that the band is a component of the mitotic apparatus in G. monilata.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1967.tb01461.x
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  • 18
    Electronic Resource
    Electronic Resource
    Macronuclear Changes in a Strain of Blepharisma undulans during the Divisional Cycle (1959)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 6 (1959), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Specimens of Blepharisma undulans were transferred from young clone cultures to a rotocompressor with 3 mm3 of culture medium. The organisms were slightly compressed and photographed at various intervals with dark field illumination. The sequence of macronuclear and cytoplasmic changes was compared with similarly followed Feulgen preparations.The cycle falls into several phases: (1) an interphase (12–24 hr.) in which the organism increases in size while cytoplasmic and macronuclear appearances remain unchanged. During this phase, the macronucleus consists of 3 to 5 nodes of various sizes connected by strands. (2) a pre-condensation phase (1 hr.) in which a new posterior peristome and cytopyge appear without visible macronuclear change. (3) a condensation phase (10–20 min.) in which the macronuclear nodes coalesce into a round mass without dissolution of the central nodes or strands. (4) a postcondensation phase (1 hr.) characterized by: (a) elongation of the condensed macronucleus into a rod-like shape followed by typical nodal formation; or (b) elongation of the condensed macronucleus into a form resembling the letter “J”, followed by nodal formation, and resulting in a double row of nodes in one daughter and a single row in the other. Separation occurs at this time, initiating the new interphase. The development of the j-form macronucleus. the lack of obliteration of the central nodes, and the characteristic interphase condition distinguish this strain of B. undulans from others described elsewhere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1959.tb03939.x
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  • 19
    Electronic Resource
    Electronic Resource
    DNA Synthesis Cycle in Blepharisma (1968)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 15 (1968), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Observations made with tritiated thymidine uptake indicate that Blepharisma cannot utilize this precursor directly from the organic medium. An intermediary, such as a food organism (bacteria or Tetrahymena, is needed. These food organisms are not only capable of incorporating thymidine from the medium, but must also break it down or prepare it in a form that is utilizable for Blepharisma.DNA synthesis phase in Blepharisma occurs 17 hours after division. Maximum incorporation is obtained 18 and 19 hours postdivision and lasts thru 24 hours. This is followed by a 1–2 hour postsynthesis phase and division.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1968.tb02170.x
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  • 20
    Electronic Resource
    Electronic Resource
    Macronuclear Variation During the Life Cycle of Blepharisma dawsoni n.sp. and B. wardsi (1967)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 14 (1967), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. From characteristics of binary fission, conjugation, size and number of micronuclei, body size and incidence of giantism, a Blepharisma isolate hitherto called B. undulans is classified as B. dawsoni sp. nov. Binary fission in B. wardsi differs from fission in B. dawsoni in that the strand connecting the macronuclear nodes is severed; in B. dawsoni the strand persists.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1967.tb02074.x
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