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  • Articles: DFG German National Licenses  (5)
  • 1990-1994  (3)
  • 1985-1989  (2)
  • 1945-1949
  • Cell & Developmental Biology  (3)
  • Triticum aestivum  (2)
Source
  • Articles: DFG German National Licenses  (5)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Dough mixing properties of a wheat-rye derived cultivar (1986)
    Springer
    Euphytica 35 (1986), S. 225-232 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; wheat-rye derived cultivars ; dough stickiness ; dough mixing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary During test baking, the wheat line QT2870, bred from a rye-derived parent, Kavkaz, and having the pedigree Kavkaz/Timgalen//3*Oxley, showed excessive dough stickiness when slightly overmixed. Conventional quality tests on QT2870 and three commercial varieties did not show any major differences which could explain this dough stickiness. However, resistogram data for QT2870 were considerably different from those for the other cultivars. The curves for QT2870 had lower breaking points and sharper curve angles, indicating that it had a lower tolerance to high speed mixing than the other varieties. Dough stickiness and a lack of mixing tolerance are likely to be major problems limiting the use of rye-derived parents in Australian bread wheat breeding programmes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028561
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Dough stickiness in rye-derived wheat cultivars (1990)
    Springer
    Euphytica 51 (1990), S. 77-86 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; dough stickiness ; rye-derived wheat cultivars
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Rye-derived wheat cultivars are being used in many breeding programmes throughout the world in order to achieve improvements in yield and disease resistance. However, the serious quality defect of intense dough stickiness associated with many of these wheat cultivars is limiting the usefulness of their flour in large mechanised bread bakeries. A dough preparation procedure was developed which enabled the dough surface properties of a range of rye-derived wheat cultivars to be assessed on doughs mixed quantitatively to their optimum mixing time. Intense dough stickiness was found in samples of 1AL/1RS and 1DL/1RS translocation lines tested and in all of the 1BL/1RS wheat cultivars examined except the West German cultivar, Disponent. Most of the 1BL/1RS wheat cultivars were derived from the Russian cultivars, Kavkaz, Aurora and Skorospelka 35 and included the CIMMYT-bred cultivars such as the Veery lines (Glennson, Ures, Genaro and Seri) and the Nebraskan cultivar, Siouxland. Based on the results of studying selected 1BL/1RS wheat cultivars in detail, this intense dough stickiness appeared to be independent of growing season, trial location, protein content, mixing tolerance, milling process and extraction rate. In addition pilot bakery trials confirmed that our laboratory testing procedures can be used to detect this intense dough stickiness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00022895
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Catalase activity in human spermatozoa and seminal plasma (1989)
    New York, NY : Wiley-Blackwell
    Gamete Research 24 (1989), S. 185-196 
    Details
    ISSN: 0148-7280
    Keywords: free radicals ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Catalase activity was determined in human semen by measuring the oxygen burst with a Clark electrode, after H2O2 addition. Significant catalase activities (mean ± SD) were found in migrated, motile spermatozoa (44 ± 17 nmoles O2/min/108 cells) and in seminal plasma of normozoospermic men (129 ± 59 nmoles O2/min/ml). It has been demonstrated that seminal catalase originated from prostate; however, its activity was not correlated with the usual prostatic markers (such as citric acid and zinc). Our data suggest a multiglandular function secreted by this organ. The catalase activities measured in seminal samples from asthenozo-ospermic, infertile men were found lower than those from normozoospermic subjects. The understanding of the relative contribution of the different enzyme systems against O2 toxicity (superoxide dismutase, catalase, glutathione peroxidase) seem to be a priority area of research to understand disturbances of sperm function.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrd.1120240206
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Regulation of insulin-like growth factor-II expression and its role in autocrine growth of human neuroblastoma cells (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 155 (1993), S. 290-300 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Insulin-like growth factor-II (IGF-II) is highly expressed in fetal tissues and may act as an autocrine growth factor during early embryogenesis. The SH-SY5Y human neuroblastoma cell line also expresses IGF-II and its receptors and responds to exogenous IGF-II with increased DNA synthesis, cell division, and neuritic outgrowth. For this study, we tested the hypothesis that IGF-II mediates autocrine growth of SH-SY5Y cells in serum-free media. SH-SY5Y cells plated at high densities proliferated in serum-free media, whereas sparsely plated cells did not. IGF-II mRNA levels increased within 24 hours of serum deprivation and were associated with increased immunoreactive IGF-II protein. Exogenous addition of IGF-II increased 3H-TdR incorporation and cell number in a dose- and time-dependent fashion. By nuclear labelling experiments using 5-Bromo-2′ deoxyuridine (BrdU), we detected a twofold higher percentage of S phase nuclei after a 24-hour incubation in IGF-II. Treatment of SH-SY5Y cells with anti-IGF-II antibodies in serum-free media inhibited cell proliferation, and this inhibition was partially overcome by the addition of increasing concentrations of IGF-II. Collectively, our results indicate that IGF-II mediates an autocrine growth mechanism in SH-SY5Y cells that is associated with increased IGF-II expression. © 1993 Wiley-Liss, Inc.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041550210
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of hypertonic and sodium-free medium on transport of a membrane glycoprotein along the secretory pathway in cultured mammalian cells (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 146 (1991), S. 34-42 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Incubation of cultured cells in hypertonic medium and sodium-free medium have been shown to block transport at two different stages along the endocytic pathway. To determine the effects of these treatments on the exocytic pathway, we studied the transport of the membrane glycoprotein of vesicular stomatitis virus (VSV-G) in cells infected with tsO45 mutant virus. This mutant synthesizes a VSV-G that accumulates in the endoplasmic reticulum (ER) when cells are incubated at 39.5°C. In addition, VSV-G accumulates in the post-ER pre-Golgi compartment when cells are incubated at 15°C and in the trans-Golgi network (TGN) when cells are incubated at 18°C. Upon transfer of cells to 32°C in control medium, VSV-G exits each of these compartments and is transported to the cell surface. Incubation in sodium-free medium at 32°C did not block transport from any of these three compartments. In contrast, incubation in hypertonic medium blocked export from the ER, transport from the pre-Golgi compartment to the Golgi complex, and transport from the TGN to the cell surface. Our results, in combination with previous studies, suggest that hypertonic medium blocks at least five distinct transport steps: the three exocytic steps described here, endocytosis from the cell surface, and transport of cell surface proteins into the Golgi complex. This raises the possibility that vesicular transport in different parts of the cell shares common elements that are inhibited by this treatment.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041460106
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    Paper (German National Licenses)
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