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  • 1
    Electronic Resource
    Electronic Resource
    Circular dichroism and magnetic circular dichroism of iron-sulfur proteins (1978)
    s.l. : American Chemical Society
    Biochemistry 17 (1978), S. 4770-4778 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00615a026
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of ammonium ions on the growth ofAspergillus nidulans (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 590-591 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung In einer Biotin-Mangelmutante vonAspergillus nidulans wurde, verglichen mit dem der Normalkultur, ein grösserer Ammonium-Verbrauch gefunden. Dies scheint seine Ursache in der Veränderung der Permeabilität der Zellwand zu haben, deren Lipoidgehalt um 40% niedriger ist. Eine Zunahme der Transaminasen (GOT, GPT) und Glutamindehydrogenase könnte für eine höhere Proteinsynthese in Mangelstamm verantwortlich sein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01898703
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  • 3
    Electronic Resource
    Electronic Resource
    Studies on the Pseudomonas aeruginosa PAO1 bacteriophage receptors (1983)
    Springer
    Archives of microbiology 135 (1983), S. 155-157 
    Details
    ISSN: 1432-072X
    Keywords: Pseudomonas aeruginosa ; PAO1 ; Phage PIK ; Receptor ; Lipopolysacharide ; Lipopolysaccharide inactivation by sugars
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Receptor for phage PIK specific for Pseudomonas aeruginosa strain PAO1 was studied. Phage PIK was strongly inactivated by lipopolysaccharide (LPS)_in vitro, exhibiting a PhI50 of 4.8 μg/ml. Further it was noted that this inactivation by LPS was reduced to 50% by several mono- and disaccharides when tested in vitro. d-glucosamine, d-mannose and l-rhamnose were found to be most effective at the concentration of 0.045 M, 0.25 M and 0.35 M respectively. This suggests the possibility that phage PIK receptor in LPS contains d-mannose, l-rhamnose and d-glucosamine. Either one of the former two could be located at a terminal position alpha-linked to the adjacent residue or located internally in the polysaccharide chain linked through its C-4 position. A theoretical approach to the interpretation of phage cell interaction was also investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00408026
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  • 4
    Electronic Resource
    Electronic Resource
    Role of plasma membranes in stimulation of RNA-directed DNA synthesis (1976)
    [s.l.] : Nature Publishing Group
    Nature 262 (1976), S. 805-807 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The effect of added plasma membrane on AMV incubated with Nonidet P-40 is shown in Table 1. The properties of the purified membrane preparations are shown in Table 2. There was a marked increase in 3H-TTP incorporation in the primary reaction with AMV endogenous template. Similarly, there was ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/262805a0
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  • 5
    Electronic Resource
    Electronic Resource
    Ultrastructural changes during wood decay by Antrodiella sp. RK1 (1993)
    Springer
    World journal of microbiology and biotechnology 9 (1993), S. 332-337 
    Details
    ISSN: 1573-0972
    Keywords: Antrodiella ; hardwood ; softwood ; ultrastructure ; white-rot fungi ; wood decay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Southern yellow pine (softwood) and maple (hardwood) wood decayed for 12 weeks by Antrodiella sp. RK1 had average weight losses of 20 and 19%, respectively, and approximately 34 to 35% lignin loss. The ratio of percentage lignin loss to glucose loss was 3.6 and 2.7 for softwood and hardwood, respectively. There was negligible loss of other wood sugars such as xylose, arabinose, galactose and mannose. Scanning electron microscopy revealed the presence of erosion troughs and bore holes in decayed samples of both softwood and hardwood. Secondary walls were void of lignin, middle lamella and cell corners were extensively decayed. Ca2+ crystals were abundantly present in the areas of decay. Transmission electron micrographs revealed the presence of hyphal sheath and growth of hyphae directly through the cell corners.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00383074
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  • 6
    Electronic Resource
    Electronic Resource
    Immobilization of Anabaena azollae from Azolla filiculoides in polyvinyl foam for ammonia production in a photobioreactor system (1994)
    Springer
    World journal of microbiology and biotechnology 10 (1994), S. 55-58 
    Details
    ISSN: 1573-0972
    Keywords: Ammonia excretion ; Anabaena azollae (AS-DS) ; Benlate ; immobilization ; MSX ; photobioreactor ; polyvinyl foam
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Anabaena azollae (AS-DS), isolated from Azolla filiculoides and grown in nitrogen-free medium, was immobilized in 5-mm-cube polyvinyl foam pieces and incorporated into a photobioreactor system for the production of NH3. NH3 was produced continuously and in significant amounts. Benlate (methyl-1-butyl-carbamoyl)-2-benzimidazole carbamate at 5 ppm and l-methionine-d,l-sulphoximine at 50 μm stimulated NH3 production continuously for a period of 1 week.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00357564
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  • 7
    Electronic Resource
    Electronic Resource
    Inhibition of tryptophan uptake in Aspergillus fumigatus by tryptamine (1977)
    Springer
    Cellular and molecular life sciences 33 (1977), S. 853-854 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The tryptophan uptake was inhibited considerably in tryptamine grown cells. This inhibition was due to feed-back inhibition and not to repression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01951239
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  • 8
    Electronic Resource
    Electronic Resource
    Role for Ferredoxins in the Origin of Life and Biological Evolution (1971)
    [s.l.] : Nature Publishing Group
    Nature 233 (1971), S. 136-138 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We propose that a ferredoxin may have been among the earliest proteins formed and that ferredoxins may be very suitable for use in the study of the evolution from anaerobic to aerobic organisms. The ferredoxins from anaerobic bacteria have a very simple composition which seems to have devel- oped ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/233136a0
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  • 9
    Electronic Resource
    Electronic Resource
    Actual and potential rates of hydrogen photoproduction by continuous culture of the purple non-sulphur bacterium Rhodobacter capsulatus (1998)
    Springer
    Applied microbiology and biotechnology 49 (1998), S. 102-107 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The influence of (NH4)2SO4 concentration and dilution rate (D) on actual and potential H2 photoproduction has been studied in ammonium-limited chemostat cultures of Rhodobacter capsulatus B10. The actual H2 production in a photobioreactor was maximal (approx. 80 ml h−1 l−1) at D = 0.06 h−1 and 4 mM (NH4)2SO4. However, it was lower than the potential H2 evolution (calculated from hydrogen evolution rates in incubation vials), which amounted to 100–120 ml h−1 l−1 at D = 0.03–0.08 h−1. Taking into account the fact that H2 production in the photobioreactor under these conditions was not limited by light or lactate, another limiting (inhibiting) factor should be sought. One possibility is an inhibition of H2 production by the H2 accumulated in the gas phase. This is apparent from the non-linear kinetics of H2 evolution in the vials or from its inhibition by the addition of H2; initial rates were restored in both cases after the vials had been refilled with argon. The actual H2 production in the photobioreactor at D = 0.06 h−1 was shown to increase from approximately 80 ml h−1 l−1 to approximately 100 ml h−1 l−1 under an argon flow at 100 ml min−1. Under maximal H2 production rates in the photobioreactor, up to 30% of the lactate feedstock was utilised for H2 production and 50% for biomass synthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002530051144
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  • 10
    Electronic Resource
    Electronic Resource
    Inhibition of tryptophan synthetase by phosphate in alkaloid-producing culture ofAspergillus fumigatus (1975)
    Springer
    Naturwissenschaften 62 (1975), S. 394-394 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00625354
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