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  • Chemistry  (4)
  • chromosome substitution  (3)
  • [abr] PMSF; phenylmethylsulfonyl fluoride  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 115 (1983), S. 700-706 
    ISSN: 0006-291X
    Keywords: [abr] CCCP; carbonyl cyanide m-chlorophenylhydrazone ; [abr] Hepes; N-2-hydroxyethylpiperazine-N'-2-ethanesulfonate ; [abr] PMSF; phenylmethylsulfonyl fluoride ; [abr] SDS; sodium dodecyl sulfate
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 115 (1983), S. 700-706 
    ISSN: 0006-291X
    Keywords: [abr] CCCP; carbonyl cyanide m-chlorophenylhydrazone ; [abr] Hepes; N-2-hydroxyethylpiperazine-N'-2-ethanesulfonate ; [abr] PMSF; phenylmethylsulfonyl fluoride ; [abr] SDS; sodium dodecyl sulfate
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 106 (1999), S. 39-43 
    ISSN: 1573-5060
    Keywords: chlorina ; chromosome substitution ; linkage ; long glume ; near-isogenic line ; purple culm ; Triticum ispahanicum ; Triticum polonicum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The Ispahan emmer wheat, Triticum ispahanicum Heslot, was discovered in Iran 1957 by the French expedition of Vinnot- Bourgen. T. ispahanicum has a long glume and a more slender spike than T. turgidum var. polonicum. The objectives of this study were (1) to determine the inheritance and chromosomal location of the gene for long glume, P2, from T. ispahanicum using the near- isogenic line P2-LD222, and (2) to compare the effects of the genes for long glume. The gene for long glume, P2, was located approximately 36.5 cM from the cn-B1 locus, which controls the chlorina trait and approximately 40 cM from the centromere on the long arm of 7B. The location of P2 approximately 29.6 cM from the Pc locus produced additional evidence that the order of loci was cn-B1, P2, and Pc. This raises the possibility of a paralogous gene set conditioning long glumes. A significant deviation from a 3:1 ratio in the F2 of LDN 7D(7B)/P2-LD222 confirmed the location of P2 on chromosome 7B. It is proposed that T. ispahanicum originated as a mutation of a gene affecting glume length on chromosome 7B of T. dicoccum, a spelt type of cultivated tetraploid wheat.
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  • 4
    ISSN: 1573-5060
    Keywords: brittle rachis ; chromosome substitution ; grain colour ; seed dormancy ; Triticum durum ; Triticum dicoccoides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract `Langdon' (LDN), a durum wheat (Triticum turgidum L. var. durum) cultivar, and a set of chromosome substitution lines of Langdon, where A or B genome chromosome were replaced with a homologous chromosome of wild emmer wheat, T. turgidum ssp. dicoccoides (DIC), were used to assess the effect of the specific chromosome on seed dormancy in tetraploid wheat. The LDN(DIC 3A) and LDN (DIC 313) lines showed significantly lower seed germination than Langdon. It appears that LDN(DIC 3A) and LDN(DIC 3B) have red grain whose allele were designated as R-A1b and R-B1b, respectively and the rachises of LDN(DIC 3A) and LDN(DIC 3B) were fragile. The alleles for brittle rachis were designated as Br 2 for LDN(DIC 3A) and Br 3 for LDN(DIC 3B). From the F2 of the crosses, Langdon/LDN(DIC 3A) and Langdon/LDN(DIC 3B), Br 2 was located approximately 44.2 cM from the R-A1b locus and Br 3 approximately 47.0 cM from the R-B1b locus, respectively. Recombinant inbred chromosomal lines for 3A and 3B were used to assess (1) the linkage relationship between grain colour and fragile rachis, and (2) the effect of grain colour on germination. Estimated distance between R-B1b – Br 2 was 39.6 cM. For the 3A population, germination percentage of both colour groups was 12.4% for the red grain group and 68.6% for the amber group, respectively. For the 3B population, germination percentage of the red group was 7.3% and that of the amber group was 82.1%. For both populations, differences were statistical significant by t-tests. We considered that seed dormancy of T. turgidum ssp. dicoccoides was dependent on grain colour. It raised the possibility that brittle rachis is due to a paralogous gene set on homoeologous group 3 chromosomes.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 91 (1996), S. 235-239 
    ISSN: 1573-5060
    Keywords: chlorina ; chromosome substitution ; linkage ; long glume ; near-isogenic line ; purple culm ; red coleoptile ; tetraploid wheat ; Triticum polonicum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Several near-isogenic lines of durum wheat cv. LD222 have been developed. These include a near-isogenic line carrying gene P and designated P-LD222. The P gene from Triticum polonicum determines a long empty outer glume. The objective of this study was to determine the inheritance and chromosomal location of the P gene. To determine the inheritance, P-LD222 was crossed to two chlorina mutants and to a near-isogenic line for the purple culm trait, Pc-LD222. Linkage of the P gene with the mutated gene in chlorina mutant CDd6 indicated that the P gene was located on chromosome 7A. P-LD222 was also crossed with durum cultivar Langdon (LDN) and the LDN D genome substitution lines, LDN 7D(7A) and LDN 7D(7B). Segregation for the long glume trait in the F2 of LDN/P-LD222 and LDN 7D(7B)/P-LD222 was normal (3:1) and indicated P gene was not on chromosome 7B. Significant deviation from a 3:1 in the F2 of LDN 7D(7A)/P-LD222 confirmed the location of P on chromosome 7A, as indicated by the linkage analysis.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 9 (1986), S. 306-307 
    ISSN: 0935-6304
    Keywords: Liquid chromatography ; Fluorometric determination ; Postcolumn reaction ; o-Phthaldehyde ; Saliva bradykinin ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 540 (1986), S. 291-299 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Röntgen-Photoelektronen-Spektroskopie an PalladiumfluoridenDie Röntgen-Photoelektronenspektren Von mehreren Palladium-Fluor-Verbindungen wurden untersucht. In allen diesen Phasen haben die Palladiumatome eine mehr oder weniger gestörte oktaedrische Koordination. Setellitenstrukturen zeigen sich im allgemeinen im Pd 3d3/2 und Pd 3d5/2 Niveau und breite F 1s-Peaks werden beobachtet. Verschiebungen der Bindungsenergien können mit dem Kovalenzgrad und dem Oxydationszustand des Palladiums in Beziehung gesetzt werden. Die XPS-Ergebnisse bestätigen deutlich den ungewöhnlichen Oxydationszustand 3+ des Palladiums in NaPdF4, Na3PdF6, K3PdF6 und K2NaPdF6.
    Notes: X-ray photoelectron spectra of several Palladium fluorine compounds have been investigated. In all these phases Palladium atoms have a more or less distorted octahedral coordination. Satellite Structures generally occur in Pd 3d3/2 and Pd 3d5/2 levels and broad F 1s peaks are observed. Shifts in binding energies can be correlated with Palladium oxidation State and covalency. XPS results clearly confirm the unusual +III oxidation State of Palladium in NaPdF4, Na3PdF6, K3PdF6, and K2NaPdF6.
    Additional Material: 5 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 544 (1987), S. 7-20 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zur Struktur von GraphitfluoridDie Struktur von Graphitfluorid, (C2F)n, wurde mittels Röntgenanalyse, 19F-Festkörper-NMR und Elektronenmikroskopie an gut charakterisierten und kristallisierten Proben von natürlichem Graphit und HOPG (highly oriented pyrolytic graphite) untersucht. Aufgrund dieser Ergebnisse und den in vorhergehenden Arbeiten erhaltenen strukturellen Eigenschaften hat (C2F)n eine Schichtstruktur der 2. Stufe, die zum hexagonalen System mit der Symmetrie C3h gehört. Detallierte Diskussionen zur Symmetrie sowohl für (CF)n wie für (C2F)n haben zur möglichen Stapelsequenz geführt, die jede Einheitszelle des Graphitfluorids erfordern sollte. Die Idealstruktur ist ein hexagonales Kristallgitter mit a = b 2,5 Å; c = 16,2 Å und einer plausiblen Stapelsequenz von AB/B′A′/ mit der Identitätsperiode Ic = 8,09 Å. Die Schichtstruktur von (CF)n ist von 1. Stufe mit der Stapelsequenz A/A′/.
    Notes: The structure of graphite fluoride, (C2F)n has been investigated by X-ray analyses, solid state 19F-n.m.r., and electron microscopy for well characterized and crystallized samples obtained from natural graphite or HOPG (highly oriented pyrolytic graphite). On the basis of the present results and structural properties derived from previous works, (C2F)n has a layered structure of stage-2 which belongs hexagonal to the system with C3h symmetry. Detailed discussions on the symmetry both for (CF)n and (C2F)n have led to possible stacking sequences each unit cell of graphite fluoride should require. The ideal structure of (C2F)n is a hexagonal crystal lattice with a = b = 2.5 Å; c = 16.2 Å, and a plausible stacking sequence of AB/B′A′/ with Ic (identity period) = 8.09 Å. The layered structure of (CF)n is of stage-1 with A/A′/ stacking sequence.
    Additional Material: 9 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 11 (1997), S. 273-279 
    ISSN: 0268-2605
    Keywords: sediments ; adsorption ; desorption kinetics ; tributyltin ; dibutyltin ; zinc ; Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Adsorption-desorption equilibrium and de- sorption kinetic studies were conducted in order to assess desorption of tributyltin (TBT), dibutyltin (DBT) and zinc from resuspended sediment. Equilibria were described in terms of linear adsorption. Desorption kinetics were represented by a two-site model which assumed that desorption consisted of rapid desorption and first-order kinetic desorption. TBT desorbed the most easily. Desorption kinetic parameters were related to adsorption mechanisms. Some experimental results did not correspond with the theoretical model. This was thought to be caused by natural organic ligands originally held in the sediment. Zinc deviated the most, because it was affected by the natural organic ligands more strongly than butylins. For example the partition coefficient of zinc varied by up to 1000-fold, and re-adsorption to sediment of the zinc that had been discharged to the water took place. Release of chemicals induced by remedial dredging was assessed. Desorbed TBT may pose a high risk. Among remediation alternatives, capping or leaving the sediment to stand prior to in situ degradation are preferred. © 1997 by John Wiley & Sons, Ltd.
    Additional Material: 6 Ill.
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