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  • Chemistry  (9)
  • dihaploid  (3)
  • 1975-1979  (12)
  • 1978  (12)
  • 1
    Electronic Resource
    Electronic Resource
    Genetics of self-compatibility in dihaploids of Solanum tuberosum L. 5. The S-genotype of tetraploid potato cultivar gineke (1978)
    Springer
    Euphytica 27 (1978), S. 385-388 
    Details
    ISSN: 1573-5060
    Keywords: Solanum tuberosum ; potato ; incompatibility ; dihaploid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Investigations of the genetics of self-compatibility and self-incompatibility in dihaploids and diploid derivatives from cv. Gineke revealed the presence of S 1, S2 and S 3 at the S-locus of Gineke and in addition an S 1-allele on a translocation. By means of a complete tester set involving the S-alleles S 1, S2 and S 3 (all from Gineke) and S 4 (from Black 4495) it was demonstrated that some Gineke dihaploids were compatible with all six testers. This indicated a fourth S-allele in Gineke, which differs from those in the tester series and was therefore assigned S 5. Additional evidence was obtained from an analysis of F1's from crosses of two S 5-bearing dihaploids and one of the testers. So the S-genotype of cv. Gineke was identified as S 1S2S3S5/S1, the second S 1 being the S-allele on a translocated fragment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00043163
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  • 2
    Electronic Resource
    Electronic Resource
    Genetics of self-compatibility in dihaploids of Solanum tuberosum L. 4. Linkage between an S-bearing translocation and a locus for virescens (1978)
    Springer
    Euphytica 27 (1978), S. 381-384 
    Details
    ISSN: 1573-5060
    Keywords: Solanum tuberosum ; potato ; self-compatibility ; dihaploid ; linkage ; virescens ; translocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three dihaploids of Solanum tuberosum (two self-compatible, one self-incompatible) were found to be heterozygous for a monogenic recessive virescent mutant. Intercrossing resulted in the expected 3 : 1 ratio only in crosses involving one self-compatible and one self-incompatible parent. Self-compatible x self-compatible matings produced F1's in which 6:1 was found. The same ratio was observed in the self progeny of the two self-compatible dihaploids. This significant deviation could be explained by assuming linkage (25% crossing-over) between v and an S-bearing translocation. This translocation causes self-compatibility in the dihaploids used and early lethality when homozygous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00043162
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  • 3
    Electronic Resource
    Electronic Resource
    Inheritance of genetic markers from two potato dihaploids and their respective parent cultivars (1978)
    Springer
    Euphytica 27 (1978), S. 681-688 
    Details
    ISSN: 1573-5060
    Keywords: Potato ; dihaploid ; marker genes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In the first inbred generation (I1) of cv. Black 4495 a dark green, slowly growing mutant (coded ds) was found, whereas the I1 of its self-compatible dihaploid, B16, comprised this ds mutant and in addition the mutants virescens (v) and yellow margin (ym). The occurrence of ds and ym might trace back to diploid S. phureja, one of the ancestors of Black 4495. No lethal mutants were observed in I1 of B16. Analysis of I1 of cv. Gineke revealed a simplex condition for virescence and either duplex or triplex heterozygosity for one lethal gene. On the other hand, the I1 of its dihaploid, G254, segregated for virescence and for three different lethal genes. It is shown that both in B16 and in G254 homozygosity of an S-bearing translocation causes early death of embryo and endosperm, thus preventing seed development. From this study it appeared that the three lethal genes from G254 affect germination rate of the seeds. The genotypes at 11 loci of B16 and G254 are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023703
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of hydroxylated chlorodibenzo-p-dioxins, chlorodibenzofurans, chlorodiphenyl ethers and chloronaphthalenes as their methyl ethers by gas chromatography mass spectrometryAbbreviations: PCDD = polychlorinated dibenzo-p-dioxins; PCDBF = polychlorinated dibenzofurans; PCB = polychlorinated biphenyls; PCDE = polychlorinated diphenyl ethers; PCN = polychlorinated naphthalenes. (1978)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 5 (1978), S. 224-231 
    Details
    ISSN: 0306-042X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The methyl ethers of a number of hydroxylated (poly)chlorodibenzo-p-dioxins, chlorodibenzofurans, chlorodiphenyl ethers and chloronaphthalenes, representing all different hydroxy substitutions, were synthesized and their mass spectra investigated. With the exception of the methoxy derivatives of the chlorodibenzofurans, it appeared that the mass fragmentation patters of the structural isomers of each class of compounds were very specifica and allowed unambiguous assignment of the position of the methoxy group in the molecule. The different fragmentation patterns can be explained in terms of plausible mechanisms resulting in stable charge delocalized (oxonium) ions. Because of its diagnostic value, this method is useful in the structure elucidation of hydroxylated metabolites of pure isomers of chlorodibenzo-p-dioxins, chlorodiphenyl ethers and chloronaphthalenes.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200050311
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  • 5
    Electronic Resource
    Electronic Resource
    The effect of the carbon-bromine bond type on the limiting oxygen index. II - Polymethylmethacrylate and polystyrene (1978)
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 2 (1978), S. 80-83 
    Details
    ISSN: 0308-0501
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Further evidence has been obtained to suggest that the fire retardation efficiencies of several organo-bromine compounds, as measured by the limiting oxygen index method, are independent of the type of carbon-bromine bond, depending almost entirely upon the bromine concentration. Linear regression analysis has confirmed the linearity of the relationship between the limiting oxygen index method and the bromine concentration. The fire retardation efficiency (as measured by the limiting oxygen index method) of the organo-bromine compounds does, however, depend to a marked extent upon the substrate.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fam.810020206
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  • 6
    Electronic Resource
    Electronic Resource
    The effect of the carbon-bromine bond type on the fire retardation of unsaturated polyester (1978)
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 2 (1978), S. 34-36 
    Details
    ISSN: 0308-0501
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Limiting Oxygen Indexes were determined for a polyester resin fire retarded with a number of different brominated hydrocarbons. It was found that up to a concentration of 28 phr bromine the values obtained were linearly related to the bromine concentration and independent of the carbon-bromine bond.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fam.810020109
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  • 7
    Electronic Resource
    Electronic Resource
    The interrelationship of structure and retetion of polyhalogenated aromatics in adsorption chromatography (1978)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 1 (1978), S. 97-97 
    Details
    ISSN: 0935-6304
    Keywords: Liquid Chromatography ; Structure and relation of polyhalogenated aromatics ; discussed ; Silica gel/aluminium oxide compared ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240010207
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  • 8
    Electronic Resource
    Electronic Resource
    Form und Mechanismen von Rissen und Brüchen unter gleichzeitiger korrosiver und dynamischer Beanspruchung mit unterschiedlichen Frequenzen (1978)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 9 (1978), S. 406-413 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Form and Mechanisms of Cracks and Fractures Caused by Simultaneous Corrosive and Dynamic Stress under Various FrequenciesDistinction of crack nucleation and crack propagation under variable frequencies and electrolytic corrosion. Relationship between crack nucleation and frequency due to differing sliding mechanisms. Crack propagation under decreasing frequencies causes transition from corrosion fatigue to cyclic stress corrosion cracking and finally stress corrosion cracking can be observed. Coordination of that transition with the increasing influence of the KISCC-value as determinant of the crack propagation.The influence of frequency on high temperature materals in hot gas atmosphere is mainly determined by creep mechanisms during top-load phase and the gas-metal-reactions. Accordingly the life time increases with growing load frequency.
    Notes: Anrißphase und Phase des Rißfortschritts bei der Betrachtung der Frequenzabhängigkeit unter elektrolytischer Korrosion. Abhängigkeit der Anrißphase von der Frequenz infolge unterschiedlicher Gleitmechanismen. Beim Rißfortschritt erfolgt mit sinkender Frequenz Übergang von Schwingungsrißkorrosion zu zyklischer Spannungsrißkorrosion und schließlich zu Spannungsrißkorrosion. Zuordnung dieses Übergangs zum zunehmenden Einfluß des KISCC-Wertes als Bestimmungsgröße für den Bruchvorgang.Frequenzabhängigkeit bei Hochtemperaturwerkstoffen in Heißgasatmosphäre im wesentlichen bestimmt durch Kriechvorgänge bei Einwirkung der Oberlast und zeitabhängige Gas-Metall-Reaktionen. Entsprechend verlängern sich die Standzeiten mit zunehmender Belastungsfrequenz.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19780091108
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  • 9
    Electronic Resource
    Electronic Resource
    The structure of α-amanitin in dimethylsulfoxide solution (1978)
    New York : Wiley-Blackwell
    Biopolymers 17 (1978), S. 1973-1986 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The backbone and side-chain conformations of the bicyclic octapeptide α-amanitin indimethylsulfoxide (DMSO) solution have ben deduced from analysis of the nmr spectrl parameters and conformational energy calculations. Several ambiguities in the nmr spectral assignments were resolved following a comparison with the recently published conformation of β-amanitin in the crystalline state. The peptide proton exchange and temperature coefficient data demonstrate strong intramolecular hyfrogen bonds for the GLY5 and Cys8 peptide protons. The vicinal proton coupling constants are consistent with the cyclic octapeptide udergoing chain reversl at the Ile6-Gly7 abd the Hyp2-Hyi3 dipeptide segments. The upfield shifts of the glycine and isoleucine protons demonstrate the folding of the indole ring of the Trp4-Cys8 brifge towards the Gly5-Ile6-Gly7 half of the Ile-amanitin molecule. The structure af α-amanitin in DMSO is defined by the (φψ) backbone rotation angles Trp4(-90, -60), Gly5 (+120, -120), Ile6(-6, +120), Gly7 (+45, +60), Cys8(-120, -60), Asn1 (+175, -175), Hyp2 (-160, -45), and Hyi3 (-90, -60). The study demonstrates that the structure of α-amanitin in solution is similar to the structure f β-amanitin in the crystalline state.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1978.360170812
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  • 10
    Electronic Resource
    Electronic Resource
    Bestimmung der Gasphasen-Dispersion in Blasensäulen mit Hilfe der Frequenzganganalyse (1978)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 50 (1978), S. 693-695 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330500910
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