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  • 1
    Electronic Resource
    Electronic Resource
    Murine thyroiditis induced by neonatal thymectomy (1973)
    Springer
    Cellular and molecular life sciences 29 (1973), S. 1396-1398 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Nachweis einer Thyroiditis bei hybriden Mäusen, die bei der Geburt thymektomiert wurden. Die Entzündung der Thyroidea wurde durch Implantation von Thymus bzw. Injektion von Thymuszellen verhindert
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01922839
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  • 2
    Electronic Resource
    Electronic Resource
    Discovery of highly apomictic and highly amphimictic dihaploids in Allium tuberosum (1997)
    Springer
    Sexual plant reproduction 10 (1997), S. 8-12 
    Details
    ISSN: 1432-2145
    Keywords: Key words Dihaploid ; Apomixis ; Diplospory ; Parthenogenesis ; Allium tuberosum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  To discover highly apomictic and amphimictic Allium tuberosum diploids, we evaluated the degree of apomixis in three dihaploids (2n=16, 2x), KaD2, TeD1 and GMD1, derived from highly apomictic tetraploids. The degree of apomixis, calculated as the percentage of diploid seedlings in the progeny obtained after cross-pollination with tetraploid cultivars, was 96% in KaD2, 7% in TeD1 and 39% in GMD1. In addition to this general index of apomictic nature, two analytical indices were evaluated in KaD2 and TeD1. The degree of diplospory, calculated as the percentage of endoreduplicated embryo-sac mother cells, was 96% in KaD2 and 2% in TeD1. The degree of parthenogenesis, calculated as the percentage of ovules with the egg cell developing parthenogenetically, was 98% in KaD2 and 10% in TeD1. Among angiosperms with gametophytic apomixis, KaD2 is the first diploid apomict whose reproductive mode has been fully described by these three quantitative indices of apomictic nature. And TeD1 is the first highly amphimictic plant found in the A. tuberosum complex. Although TeD1 is poorly fertile, the present results encourage further screening trials for highly fertile, highly amphimictic dihaploids, which may be effective counterparts to KaD2 in diploid-level cross experiments to genetically analyze apomixis in A. tuberosum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004970050061
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  • 3
    Electronic Resource
    Electronic Resource
    Pseudogamous embryogenesis and the degree of parthenogenesis inAllium tuberosum (1992)
    Springer
    Sexual plant reproduction 5 (1992), S. 79-85 
    Details
    ISSN: 1432-2145
    Keywords: Parthenogenesis ; Pseudogamous apomict ; Antipodal embryony ; Allium tuberosum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Early stages of egg embryony and antipodal embryony in ovules from both pollinated and unpollinated flowers ofAllium tuberosum, a diplosporous apomict, were observed. Whether flowers were pollinated or not, autonomous egg and antipodal embryonies occurred at nearly equal frequencies and progressed almost synchronously for several days. An electrophoretic analysis of endosperm esterase demonstrated the fertilization of polar nuclei. It was thus confirmed thatA. tuberosum is a pseudogamous apomict. The degree of parthenogenesis, calculated as the percentage of ovules in which egg cells showed autonomous embryonic development, ranged between 62% and 94% among six cultivars and was nearly equal to the degree of diplospory previously reported. The present results show that most unreduced egg cells and egg-like antipodal cells ofA. tuberosum have the ability to start embryogenesis independently of pollination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00714561
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  • 4
    Electronic Resource
    Electronic Resource
    Diplosporous embryo-sac formation and the degree of diplospory inAllium tuberosum (1992)
    Springer
    Sexual plant reproduction 5 (1992), S. 72-78 
    Details
    ISSN: 1432-2145
    Keywords: Endoreduplication ; Female meiosis ; Embryo sac development ; Degree of diplospory ; Alliumtuberosum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary To obtain information on the dynamic and quantitative aspects of displospory in a facultative apomict,Allium tuberosum (2n = 32), we cytologically observed the entire course of female meiosis and embryosac development in cv ‘Tender-Pole’ by the clearing-staining-squash method. A time-table of its course was constructed in terms of bud length and days pre-anthesis. Chromosome threads were observed in pairs at the earliest stage of meiosis, after which 32 autobivalents developed. Thus, endoreduplication must have occurred during premeiotic interphase or at the onset of female meiosis. Such endoreduplicational meiosis also occurred on the male side, though the frequency (3.9%) was much lower than that on the female side (80%). The degree of diplospory calculated as the percentage of reduplicated embryo-sac mother cells varied to some extent among six cultivars: ‘Huhehaote’ and ‘Manchuria’ showed the highest degree of diplospory (98%), and ‘Kaohsiung’ the lowest (76%).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00714560
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  • 5
    Electronic Resource
    Electronic Resource
    Some properties of a condensed polynuclear aromatic resin (COPNA) as a binder for carbon fibre composites (1986)
    Springer
    Journal of materials science 21 (1986), S. 2027-2032 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A new thermosetting resin consisting of condensed aromatic nuclei cross-linked with methylene bridges was prepared from a mixture of pyrene, phenanthrene and 1,4-benzenedimethanol by heating above 393 K. This resin, named COPNA, adheres well to carbon fibres, and the carbon fibre/resin composite (CFRP) prepared by using this resin as a binder exhibits no remarkable changes in mechanical properties after heating at 523 K for 10 h and 573 K for 2h. The CFRP specimens were converted into carbon fibre/carbon composite (CFRC) by further heating up to 1 273 K without any trouble.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00547943
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  • 6
    Electronic Resource
    Electronic Resource
    Interspecific hybrid between Allium cepa and Allium sativum (1993)
    Springer
    Theoretical and applied genetics 85 (1993), S. 969-975 
    Details
    ISSN: 1432-2242
    Keywords: Interspecific hybrid ; Onion ; Garlic ; Nascent embryo rescue ; Flavor precursors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Interspecific hybrids between Allium cepa and Allium sativum were obtained using the fertile clone A. sativum as the male parent. The nascent embryos which formed shortly in interspecific hybridization between A. cepa and A. sativum were rescued by ovule culture at an early stage. The zygotes or proembryos developed in Murashige and Skoog medium containing 5.7×10-8 M indole-3-butyric acid (IBA). Once developed, the embryos were taken out of the ovule and cultured on embryo culture medium where they regenerated into whole plants. The hybridity of the plants obtained was examined by morphological observation, chromosome analysis, and ribosomal RNA gene analysis. The analyses proved that the plants were mature sexual hybrids between A. cepa and A. sativum. Each hybrid plant had keeled but fistulose leaves and formed a bulb resembling that of A. cepa. The hybrids produced not only S-propenyl-l-cysteine sulfoxide, which is the major flavor precursor in A. cepa, but also S-allyl-l-cysteine sulfoxide (alliin), which is characteristic of A. sativum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215036
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  • 7
    Electronic Resource
    Electronic Resource
    Sorption von Wasserdampf an Poly-S-carboxy-methyl-L-cystein und dem Natriumsalz (1978)
    Springer
    Colloid & polymer science 256 (1978), S. 391-391 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01544400
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  • 8
    Electronic Resource
    Electronic Resource
    Oxidation behavior of CFRC and C/C using diphenylborosiloxane (2000)
    Springer
    Journal of materials science 19 (2000), S. 169-172 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006644708350
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  • 9
    Electronic Resource
    Electronic Resource
    Carbon fiber/ceramic composite using aluminum phosphate with different P/Al molar ratios (2000)
    Springer
    Journal of materials science 19 (2000), S. 557-560 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006713808644
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  • 10
    Electronic Resource
    Electronic Resource
    The SMXA: a new set of recombinant inbred strain of mice consisting of 26 substrains and their genetic profile (1995)
    Springer
    Mammalian genome 6 (1995), S. 850-857 
    Details
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A new set of recombinant inbred (RI) strain SMXA consisting of 26 substrains was established between SM/J and A/J. The history of the SMXA RI strains and their genetic prolife covering 158 genetic marker loci are reported. From the strain distribution pattern among SMXA RI strains, the chromosomal location of salivary and tear protein genes Spel-r, Spel-s, Spe2, and Tpe1 were newly determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00292434
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