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  • 1
    Electronic Resource
    Electronic Resource
    Study of androgenetic performance and molecular characterisation of a set of wheat-rye addition lines (1994)
    Springer
    Theoretical and applied genetics 89 (1994), S. 982-990 
    Details
    ISSN: 1432-2242
    Keywords: RFLP analysis ; Wheat-rye addition lines ; Chromosomal rearrangements ; Anther culture ; Regeneration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Rye chromosomes of wheat-rye addition lines were successfully identified by means of an RFLP analysis with 30 probes. Our results are in agreement with previous cytological data concerning the identity of lines F (+1R), D (+2R), C (+3R), A (+4R), E (+5R) and B (+7R). Two categories of chromosomal rearrangements have been distinguished, namely: (1) deletions: the current line D possesses a chromosome 2R deleted on its short arm and the line G a chromosome 3R deleted on its long arm; we have also noticed a deletion on the long arm of wheat chromosome 1A in line F61; and (2) evolutionary reciprocal translocations in rye relative to wheat which have been previously mentioned in the literature. The anther culture response of the different lines was studied. A significant difference between ‘FEC 28’ and the addition lines was observed for embryo production and plant regeneration. It appears that genes located on ‘S 10’ chromosome arm 3RL and on ‘FEC 28’ chromosome arm 1AL increase embryo frequency whereas gene(s) located on ‘S 10’ chromosome 5R reduce(s) it. Plant regeneration results suggest that genes increasing regeneration ability and green-plant frequency are located on ‘S 10’ chromosome 4R. The long arm of chromosome 1A seems to be involved positively in green-plant regeneration whereas chromosomes 1R and 3R limit plant regeneration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00224528
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  • 2
    Electronic Resource
    Electronic Resource
    RFLP analysis of an Aegilops ventricosa chromosome that carries a gene conferring resistance to leaf rust (Puccinia recondita) when transferred to hexaploid wheat (1995)
    Springer
    Theoretical and applied genetics 90 (1995), S. 1042-1048 
    Details
    ISSN: 1432-2242
    Keywords: RFLP analysis ; Whea ; Aegilops ventricosa ; Leaf rust resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract RFLP analysis has been used to characterise XMv, a chromosome of Aegilops ventricosa present in a disomic addition line of wheat. This chromosome is known to carry a major gene conferring resistance to leaf rust (Lr). The analysis demonstrated that XMv is translocated with respect to the standard wheat genome, and consists of a segment of the short arm of homoeologous group 2 attached to a group 6 chromosome lacking a distal part of the short arm. Lr was located to the region of XMv with homoeology to 2S by analysis of a leaf rust-susceptible deletion line that was found to lack the entire 2S segment. Confirmation and refinement of the location of Lr was obtained by analysis of a spontaneous resistant translocation in which a small part of XMv had been transferred to wheat chromosome 2A.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222919
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  • 3
    Electronic Resource
    Electronic Resource
    Redox processes in polyaniline thin film studied by optical multichannel analysis (1992)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 19 (1992), S. 27-32 
    Details
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Optical multichannel analysis (OMA) was used to follow the kinetics of colour changes in electrochromic polyaniline films when the latter are polarized in an electrolytic medium at different potentials. These colour changes, which are related to the transition from one polymer form to another, are very fast. OMA also allowed us to obtain an apparent value of the film absorption coefficient. In the investigated range (300-800 nm), several absorption phenomena can be displayed which are characteristic of the different polymer forms. Two electrolytic media (1 M HCl and 1 M H2SO4) were compared to investigate the role played by the size of the inserted counter-ion. The overall results allow us to estimate the practical possibility of using polyaniline in electrochromic devices.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/sia.740190109
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  • 4
    Electronic Resource
    Electronic Resource
    Peptide-bond distortions and the curvature of α-helices (1986)
    New York : Wiley-Blackwell
    Biopolymers 25 (1986), S. 1087-1093 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Solvent accessible peptide bonds in proteins exhibit a 1-3° compression of the OCN bond angle and a corresponding expansion of the NCCa bond angle, relative to buried peptide bonds. These changes are consistent with an increase in hydrogen bonding to the carbonyl oxygen accompanying solvent exposure (J. D. Dunitz and F. K. Winkler, (1975) Acta Cryst. B31, 251-263). For amphiphilic structures such as α-helices, systematic differences in peptide-bond geometry between solvent-exposed and buried residues will generate significant curvature. A decrease of 4° in the OCN bond angle between hydrophilic and hydrophobic sides of an amphiphilic helix will lead to smooth bending, with a radius of curvature of about 70 Å. This curvature is in the range observed for α-helices in proteins. Helix curvature is estimated to have only a small effect on the magnitude and direction of the helical dipole moment.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360250609
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  • 5
    Electronic Resource
    Electronic Resource
    A technique for obtaining the infrared absorption spectra of high gel rubbers (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 21 (1956), S. 323-324 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120219815
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  • 6
    Electronic Resource
    Electronic Resource
    Contribution à l'étude de propriétés des molécules d'explosif dans l'état active. II. Volumes molaires des derivés nitrés aromatiques (1983)
    Weinheim : Wiley-Blackwell
    Propellants, Explosives, Pyrotechnics 8 (1983), S. 46-48 
    Details
    ISSN: 0721-3115
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Les incréments de volumes moléculaires affecté à chaque atome ou groupement d'atomes ont été déterminés sur dix explosifs aromatiques nitrés, tant à l'état cristallin qu'à l'état activé, au sens de la théorie cinétique de la détonation. Comme dans le cas des esters nitriques, on constate que seuls les groupements explosophores sont comprimés, ainsi que le groupe phénol. Les autres atomes ou groupements ont des volumes voisins de ceux déterminés dans les cristaux d'après les règles d'additivité établies récemment dans les solides cristallins.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prep.19830080204
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