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  • 1990-1994  (3)
  • Life Sciences  (2)
  • Intergeneric somatic hybridization  (1)
  • 1
    Electronic Resource
    Electronic Resource
    “Erussica”, the intergeneric fertile somatic hybrid developed through protoplast fusion between Eruca sativa Lam. and Brassica juncea (L.) Czern. (1990)
    Springer
    Theoretical and applied genetics 79 (1990), S. 561-567 
    Details
    ISSN: 1432-2242
    Keywords: Intergeneric somatic hybridization ; Brassica + Eruca ; Somatic hybrid ; Partial somatic hybrid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Hypocotyl calli-derived protoplasts of two cultivars of Brassica juncea (2n=36), a major oil-seed crop, were fused with normal as well as γ-irradiated mesophyll protoplasts of Eruca sativa (2n=22). The irradiation of the Eruca fusion partner increased the plating efficiency as well as the morphogenic potentiality of the fusion products over the normal fusion. Fertile plants could be regenerated from such fusion products. Analysis of 63 out of 181 plants regenerated showed that, indeed, 11 somatic hybrids (2n=58) and 10 partial somatic hybrids (chromosome number ranged between 50 and 56) had been obtained. Pollen viability (0%–82.9%) and seed set (0%–50%) of the hybrids indicated them to be useful for future studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226168
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Extracellular amylase synthesis by Bacillus globisporus BH-1b (1994)
    Berlin : Wiley-Blackwell
    Acta Biotechnologica 14 (1994), S. 97-104 
    Details
    ISSN: 0138-4988
    Keywords: Life Sciences ; Life Sciences (general)
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Despite the prevalence of starch-hydrolyzing enzymes in bacilli, relatively few have been studied in detail. In an attempt to isolate an effective α-amylase-producing strain, Bacillus globisporus BH-1b has been isolated. The strain requires few nutritional supplements and shows induction in the presence of galactose. 2% potassium nitrate and pH 7.2 emerged as optimum for the fermentation medium. The durability of the enzyme has also been tested at a low pH and a high temperature.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/abio.370140116
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Accumulation of heavy metals by oscillatoria sp. (1990)
    Berlin : Wiley-Blackwell
    Acta Biotechnologica 10 (1990), S. 469-471 
    Details
    ISSN: 0138-4988
    Keywords: Life Sciences ; Life Sciences (general)
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Microorganisms are the dominatign inhabitants of the soil, and there is an icnreasing tendency to apply heavy metals in agricultural practice. The ecological balance may be distrubed unknowingly if we do nogt measure the tolerance by the microorganisms of these heavy metals. It has been found in a Oscillatoria model system that widely used heavy metals have a high degree of toxicity to this cyanobacter.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/abio.370100517
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    Paper (German National Licenses)
    Fulltext
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