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  • Blackwell Publishing Ltd  (35)
  • Cambridge University Press  (13)
  • 1965-1969  (45)
  • 1945-1949  (3)
  • 1
    Electronic Resource
    Electronic Resource
    THE OUTPUT OF SWARDS ON COMMERCIAL FARMS IN RELATION TO FERTILIZER AND OTHER MANAGEMENT FACTORS (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 20 (1965), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Survey data collected during a grassland-recording investigation showed a strong positive correlation between nitrogen input and the output of utilized starch equivalent per acre. At the levels of output covered, sward type was not very important in relation to total yield. Herbage species were important for other reasons and the choice of seeds mixtures should be determined by factors such as earliness and lateness of growth and resistance to disease and drought. The survey showed that well-managed ley and permanent pasture are both capable of producing at a high level. A disturbing feature of the results was the low production of most spring resowings, primarily as a result of poor management. Although the records were obtained from an above-average group of farms, the results have general application. Potential responses to fertilizers may be even greater on less intensive farms, especially with regard to phosphate and potash. However, the level of production of a field will always depend finally on the level of management exercised by the farmer himself.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1965.tb00419.x
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  • 2
    Electronic Resource
    Electronic Resource
    The Host-Restriction of Haemoproteus sp. indet. of the Wood-Pigeon Columba p. palumbus (1966)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 13 (1966), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Earlier experiments suggested that the species of Haemoproteus which infects English wood-pigeons (Columba p. palumbus) and is transmitted by the hippoboscid dipteran fly Ornithomya avicularia, was unable to infect Columba livia domestica, a host of H. columbae. This has now been confirmed by the injection of sporozoites into two pairs of pigeons, one of each species; in both experiments the C. palubus developed parasitemia while the C. livia did not. It has also been shown that this species of Haemoproteus can complete sporogony in a small proportion (2/73) of Pseudolynchla canariensis, the vector of H. columbae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1966.tb01930.x
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  • 3
    Electronic Resource
    Electronic Resource
    Haemoproteus palumbis sp. nov. (Sporozoa, Haemosporina) of the English Wood-Pigeon Columba p. palumbus (1966)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 13 (1966), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Haemoproteus palumbis sp. nov. is described from the English wood-pigeon, Columba p. palumbus. Its pigmented gametocytes inhabit erythrocytes and resemble those of H. columbae (in C. livia) but may be slightly longer and narrower. It is characterized by having oval or slightly lobed, not elongate, schizonts in endothelial cells of lung and heart, a prepatent period of 14 days, and a sporogonic cycle in the hippoboscid fly Ornithomya avicularia lasting 6 1/2–7 days. H. palumbis sp. nov. cannot infect C. livia but can infect a small proportion of individuals of Pseudolynchia canariensis, the vector of H. columbae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1966.tb01954.x
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  • 4
    Electronic Resource
    Electronic Resource
    Growth of Tetrahymena in Carbohydate-Free High-Glutamate Media (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. In chemically defined media, pH 6.4–6.8, supplementation with glycerol permitted growth equal to that with a carbohydrate supplement. In a pH 5.4 medium described in detail, containing L-glutamic acid 0.25%, supplementation with L-serine (essential for this strain), especially when further supplemented with proline, likewise permitted growth nearly equal to that with carbohydrate. These results are discussed in relation to the question of which components of peptone act as substrates and the resemblances of the Tetrahymena pattern of substrate utilization to that of metazoa.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1968.tb02199.x
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  • 5
    Electronic Resource
    Electronic Resource
    Cryoprotectants for Crithidia fasciculata Stored at -20 C, with Notes on Trypanosoma gambiense and T. conorhini (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. Cryoprotectants were tested in both complex and semidefined media for the trypanosomatid Crithidia fasciculata. Near log-phase or end-of-log-phase cultures were frozen for 24–48 hr at ∼ -20 C, then warmed in air to room temperature. Immediate motility was correlated with viability. The best protectant of the 83 tested was glycerol at ∼ 10% (w/v). Survival without cryoprotectant was rare. Outstanding cryoprotectants (perhaps also useful solvents for drugs poorly soluble in water) were: ethylene glycol; 2,2′-dioxyethanol (diethylene glycol); 1,2,4-butanetriol; 1,4-cyclohexanediol; dimethylsulfoxide; propylene glycol; and N-acetylethanolamine. Several sugars were active, e.g., D-arabinose, sucrose, and sorbitol. Trypanosomes tolerated cryoprotectants much less; tolerance was better in growth media than in suspension media. Trypanosoma gambiense was grown in blood-enriched media + 2-2.5% glycerol, suspended in 20% (w/v) glycerol. then frozen; this permitted 3-week survival. T. conorhini survived 4 weeks after growth in media containing glycerol 2.5%+ ethylene glycol 4%+ rutin 1.0 mg per 100 ml.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1968.tb02201.x
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  • 6
    Electronic Resource
    Electronic Resource
    Phytosterols and Other Lipids as Survival Factors for Tetrahymena at 0–5 C (1969)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 16 (1969), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Tetrahymena pyriformis syngen 1, mating type II, (optimal growth temperature ∼ 37 C) ordinarily dies out in 5-14 days at 0-5 C. Dying cells were lumpy, suggesting membrane damage. By supplying crude soy lecithin, survival at 0-5 C was prolonged (after growth in peptone-yeast-dextrin) to at least 22 weeks. Crude soy sterols or sitosterol or stigmasterol, and antioxidant, e.g., Ionox 330 or ascorbylpalmitate, permitted survival of cells in suspension or in growth media for at least 16-22 weeks. These sterols are known to protect against triparanol toxicity, which suggested that triparanol, which blocks cholesterol synthesis in higher animals, might enhance cold-induced injury. Triparanol was more toxic at 0–5 than at 28 C for cell suspensions and cells in growth medium; this toxicity was annulled by crude soy lecithin or β-sitosterol, the only phytosterol tested. The synthetic medium intended as a control on the crude media became toxic at 0–5 C. Protection against cold damage is discussed as a means of elucidating the role of sterols—especially phytosterols—and other lipids in maintaining the integrity of the ciliate cell membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1969.tb02264.x
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  • 7
    Electronic Resource
    Electronic Resource
    The Fine Structure of the Gametocytes of an Adeleine Haemogregarine (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. Gametocytes of an unidentified haemogregarine (Sporozoa, Telosporea, Coccidia, Eucoccida, Adeleina, Haemogregarinicae) from the frog Rana montezumae were examined by light and electron microscopy. The fully-grown gametocytes lay in a vacuole in the erythrocyte, surrounded by a sheath which was probably of parasitic origin. The gametocytes were bounded by a pellicle of 2 unit membranes, beneath which lay a ring of small longitudinal fibrils. At the anterior end there were 2 concentric layers of larger longitudinal fibrils, arranged in a truncated cone, lying between the pellicle and the cytoplasm of the parasite. The cytoplasm contained a few small mitochondria, many inclusions resembling lysosomes, and small vacuoles; there were also 2 larger, anterior inclusions, which did not appear to run to the tip of the organism. Numerous ribosomes were seen, but no endoplasmic reticulum. The single nucleus contained discrete, dense, granular masses, perhaps deoxyribonucleoprotein, and was apparently limited by only a single membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1967.tb01990.x
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  • 8
    Electronic Resource
    Electronic Resource
    Trypanosoma avium: Fine Structure of All Developmental Stages (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. Thin sections of the following stages of Trypanosoma avium were examined in the electron microscope: Trypomastigote forms from the blood of a bird, large epimastigote forms developing from the former after 2 hours in vitro, small epimastigote and metacyclic trypomastigote forms developing after longer periods of cultivation in vitro. The general structure of all stages was similar to that which is already well known for the genus, with the following points being of particular interest:(1) In the large trypomastigote and epimastigote forms, and possibly also in the smaller forms, the flagellar sheath was attached to the pellicle, at least in places. In the large trypomastigote forms, this resulted in the drawing out of a “fin” or ridge of cytoplasm, particularly in the mid-region of the body, to form a true undulating membrane.(2) At least some of the individuals in the blood of a bird have 2 basal bodies, one of which is aflagellate, altho these individuals rarely if ever divide. The large epimastigote forms into which they transform in vitro develop 4 basal bodies (2 flagellate and 2 aflagellate) before dividing.(3) The chondriome is well-developed in all stages, extending thruout the body, even to the tip of the elongated posterior end of the form in the avian host.(4) A short cytostome, leading from the flagellar pocket, was seen in the hematozoic (blood-inhabiting) trypomastigote form but not in other stages.(5) It is suggested that the forward movement of the kinetoplast and basal body during the transformation from trypomastigote to epimastigote form is mediated by localized cytoplasmic movement, resulting in the “rolling-up” of the organism's hind end. It is further suggested that protein synthesis is reduced or even suppressed entirely in the small epi- and trypomastigote forms appearing at the end of the developmental cycle in vitro or in the insect host, such synthesis recommencing rapidly after re-entry into the vertebrate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1968.tb02126.x
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  • 9
    Electronic Resource
    Electronic Resource
    Scoring vs. Comparative Rating of Sensory Quality of Wines (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 30 (1965), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: One hundred and fifty wines of different types and regions were scored by 11 experienced judges by two methods (scoring and comparative rating). It was thought that the second method (which included a reference wine) would give more stable and consistent results than the standard method. For some categories of wines the standard method resulted in more stable and consistent responses, but for other categories the reverse is true. For some judges and for some categories of wines the two methods were practically identical. The reactions of the judges to the two methods varied greatly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1965.tb01886.x
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  • 10
    Electronic Resource
    Electronic Resource
    Comparative Susceptibility of Chicken, Duck and Turkey Eggs to Microbial Invasion (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 30 (1965), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Duck eggs were the most susceptible to bacterial spoilage, and turkey eggs were at least as resistant as chicken eggs and in some experiments appeared significantly more resistant. Under storage for 6 weeks at room temperature, however, the ability to resist bacteria was essentially unchanged in duck eggs and very markedly lowered in chicken eggs. Similarly, duck eggs lost very little quality (Haugh units) upon prolonged storage, and chicken eggs lost interior quality much faster. Bacterial penetration studies of chicken and duck exterior structures with model systems demonstrated that the outer shell membrane was the least resistant, followed by the shell and then the inner shell membrane. No consistent or significant differences in bacterial penetration were found between chicken and duck eggs, although the inner shell membrane of the former was thicker than that of the latter. Egg albumen was implicated as a major barrier to bacterial egg spoilage; conalbumin was an important inhibitor in egg white.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1965.tb01860.x
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