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  • 1
    Electronic Resource
    Electronic Resource
    Production of fertile transgenic Brassica napus by Agrobacterium-mediated transformation of protoplasts (2005)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 124 (2005), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A protocol for Agrobacterium tumefaciens-mediated transformation of Brassica napus mesophyll protoplasts is described. A strain with a neomycin phosphotransferase (nptII) gene and a KCS gene under control of a napin promoter was used at co-cultivation. Transformed protoplasts were regenerated to fertile and morphologically normal transgenic plants. Transformants were confirmed by PCR of the nptII gene and NAP/KCS expression cassette, and Southern blot analysis. Seeds of the transformants showed a changed fatty acid profile: two transformants had a higher erucic acid level and differed significantly from that of B. napus. Genetic analysis of the progeny revealed that the kanamycin resistance introduced was inherited in a Mendelian fashion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2004.01015.x
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  • 2
    Electronic Resource
    Electronic Resource
    13C NMR studies of the fluxes in the central metabolism of Corynebacterium glutamicum during growth and overproduction of amino acids in batch cultures (1995)
    Springer
    Applied microbiology and biotechnology 44 (1995), S. 489-495 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  The carbon flux distribution in the central metabolism of Corynebacterium glutamicum was studied in batch cultures using [1-13C]- and [6-13C]glucose as substrate during exponential growth as well as during overproduction of L-lysine and L-glutamate. Using the 13C NMR data in conjunction with stoichiometric metabolite balances, molar fluxes were quantified and normalised to the glucose uptake rate, which was set to 100. The normalised molar flux via the hexose monophosphate pathway was 40 during exponential growth, whereas it was only 17 during L-glutamate production. During L-lysine production, the normalised hexose monophosphate pathway flux was elevated to 47. Thus, the carbon flux via this pathway correlated with the NADPH demand for bacterial growth and L-lysine overproduction. The normalised molar flux in the tricarboxylic acid cycle at the level of 2-oxoglutarate dehydrogenase was 100 during exponential growth and 103 during L-lysine secretion. During L-glutamate formation, the normalised flux through the tricarboxylic acid cycle was reduced to 60. In contrast to earlier NMR studies with C. glutamicum, no significant activity of the glyoxylate pathway could be detected. All experiments indicated a strong in vivo flux from oxaloacetate back to phosphoenolpyruvate and/or pyruvate, which might be due to phosphoenolpyruvate carboxykinase activity in C. glutamicum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002530050587
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  • 3
    Electronic Resource
    Electronic Resource
    13C NMR studies of the fluxes in the central metabolism of Corynebacterium glutamicum during growth and overproduction of amino acids in batch cultures (1995)
    Springer
    Applied microbiology and biotechnology 44 (1995), S. 489-495 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The carbon flux distribution in the central metabolism of Corynebacterium glutamicum was studied in batch cultures using [1-13C]- and [6-13C]glucose as substrate during exponential growth as well as during overproduction of l-lysine and l-glutamate. Using the 13C NMR data in conjunction with stoichiometric metabolite balances, molar fluxes were quantified and normalised to the glucose uptake rate, which was set to 100. The normalised molar flux via the hexose monophosphate pathway was 40 during exponential growth, whereas it was only 17 during l-glutamate production. During l-lysine production, the normalised hexose monophosphate pathway flux was elevated to 47. Thus, the carbon flux via this pathway correlated with the NADPH demand for bacterial growth and l-lysine overproduction. The normalised molar flux in the tricarboxylic acid cycle at the level of 2-oxoglutarate dehydrogenase was 100 during exponential growth and 103 during l-lysine secretion. During l-glutamate formation, the normalised flux through the tricarboxylic acid cycle was reduced to 60. In contrast to earlier NMR studies with C. glutamicum, no significant activity of the glyoxylate pathway could be detected. All experiments indicated a strong in vivo flux from oxaloacetate back to phosphoenolpyruvate and/or pyruvate, which might be due to phosphoenolpyruvate carboxykinase activity in C. glutamicum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00169949
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Klärung tuberkulöser Pleuraempyeme bei lokaler Anwendung chemotherapeutischer Mittel (1954)
    Springer
    Lung 111 (1954), S. 42-45 
    Details
    ISSN: 1432-1750
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02146429
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  • 5
    Electronic Resource
    Electronic Resource
    Der Flug der Kirschfliege (Rhagoletis cerasi L.) in seiner Bedeutung zu Fruchtreife und Witterung, mit grundsätzlichen Erörterungen über die Erfassung der Wetterfaktoren (1932)
    Springer
    Journal of pest science 8 (1932), S. 1-10 
    Details
    ISSN: 1612-4766
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02338304
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  • 6
    Electronic Resource
    Electronic Resource
    Increased native chemiluminescence in granulocytes isolated from synovial fluid and peripheral blood of patients with rheumatoid arthritis (1994)
    New York : Wiley-Blackwell
    Journal of Bioluminescence and Chemiluminescence 9 (1994), S. 79-86 
    Details
    ISSN: 0884-3996
    Keywords: Neutrophils ; synovial fluid ; peripheral blood ; luminol-amplified chemiluminescence ; native chemiluminescence ; rheumatoid arthritis ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Polymorphonuclear leukocytes (PMNs) isolated from peripheral blood and synovial fluid of patients with rheumatoid arthritis and from peripheral blood of volunteers were stimulated with 12-Phorbol-13-myristate acetate (PMA). No significant differences in luminol-amplified chemiluminescence were found between different patients and control groups. However, two distinct patterns of native chemiluminescence were observed. Type I showed no, or only a small, increase in native chemiluminescence with integral counts over 30 min less than 3 × 105 cpm, and the majority of samples from volunteers were of this type. Type II was characterized by a burst of native chemiluminescence starting 8 to 15 min after cell stimulation. It was found in most PMN samples from patients with rheumatoid arthritis. Integral counts over 30 min were always higher than 106 cpm and as high as 108 cpm in some cases. A strong inhibition of the Type II native chemiluminescence was caused by desferal, catalase, thiourea, and glutathione. However, the luminol-amplified chemiluminescence remained unchanged or was only slightly decreased under the same experimental conditions. Sodium azide strongly inhibited both kinds of luminscence. Hydroxyl radicals, formed in a Fenton reaction, may be important intermediates in the Type II native chemiluminescence.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bio.1170090207
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  • 7
    Electronic Resource
    Electronic Resource
    Mechanisms of inhibition of chemiluminescence in the oxidation of luminol by sodium hypochlorite (1993)
    New York : Wiley-Blackwell
    Journal of Bioluminescence and Chemiluminescence 8 (1993), S. 307-313 
    Details
    ISSN: 0884-3996
    Keywords: Luminol ; sodium hypochlorite ; hydrogen peroxide ; inhibition of chemiluminescence ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Two different mechanisms of inhibition of chemiluminescence in the oxidation of luminol by sodium hypochlorite were found. Most substances investigated in these experiments acted by scavenging NaOCI. This mechanism was independent of the concentration of hydrogen peroxide and the incubation time between luminol and inhibitors. The most potent inhibitors were substances containing SH groups. Compounds with amino groups as a target for HOCI/OCI- to yield chloramines were much less effective inhibitors. Another mechanism of inhibition was found for catalase. It depended on the presence of hydrogen peroxide in the incubation medium and the incubation time between luminol and catalase. The enzyme inhibited the luminescence by removing H2O2 at molar concentrations much smaller than those found for all other inhibitors. Our results confirm the present models of the mechanism of generation of luminescence in luminol oxidation.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bio.1170080604
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