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  • 1
    Electronic Resource
    Electronic Resource
    The effect of nitrogen in cattle slurry and mineral fertilizers on nitrogen fixation by white clover (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 45 (1990), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The influence of N in slurry or in mineral fertilizers on herbage yield and nitrogen fixation by white clover grown in mixed swards was investigated. Two levels of N in cattle slurry were compared with a range of mineral N fertilization. The percentage of N derived from symbiosis (% Nsym) was measured by the 15N-isotope dilution method. The measurements were made in spring 1987 in two 4-year-old field trials, and included two out of five harvests.The % Nsym was approximately 90% without N fertilization. It decreased in response to both mineral N and N in slurry but did not fall below 63%. The sum of two harvests revealed that 51·2 kg N ha−1 were fixed in the absence of N fertilization. With 75 kg mineral N ha−1 or 50 m3 cattle slurry ha−1, the yield of fixed N decreased to 17·2 and 24·9 kg ha−1, respectively. When compared on the basis of the fertilizer effect on dry matter yield and N concentration of perennial ryegrass, the decrease in yield of N fixed due to treatment with cattle slurry was less than that due to mineral N fertilizer. This was owing to the smaller extent of the depression in the proportion of white clover in the sward when the same amount of N was applied in cattle slurry, as compared with mineral fertilizer, although % Nsym responded similarly to both types of N fertilization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1990.tb02186.x
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  • 2
    Electronic Resource
    Electronic Resource
    New sources of resistance for stripe rust in barley (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 119 (2000), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Eight spring barley accessions from the gene bank in Gatersleben, Germany, and 10 cultivars were tested for stripe rust resistance. Tests were performed at the seedling stage in the growth chamber and as adult plants in the field. All accessions and six cultivars were scored as resistant against race 24 under all test conditions, with very few plants as exceptions, while the susceptible control cultivars ‘Karat’ and ‘Certina’, and four other cultivars were attacked in all cases. Differences between accessions and between cultivars were detected after infection with isolates from ‘Trumpf’ and ‘Bigo’ (seedling tests only). Infection structures within seedling leaves without pustules and for the first time within leaves of adult plants from the field were analysed by fluorescence microscopy. With this method additional genetic Differences in the resistance reaction could be detected which could not to be seen in the resistance test. Crosses between the accessions and the susceptible cultivar ‘Karat’ led to segregating F2 progenies. The percentage of resistant plants varied between the accessions. This also indicates a different genetic basis of resistance in the accessions. The infection structures observed by fluorescence microscopy stopped earlier in leaves of the two accessions HOR 8979 and HOR 8991 than in leaves of other accessions in all the tests. These accessions were the only ones with more than 50% resistant plants in all F2 tests. In general, the accessions from the gene bank can be used as new resistance sources against stripe rust.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2000.tb01676.x
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  • 3
    Electronic Resource
    Electronic Resource
    Hordeum bulbosum-a new source of disease resistance-transfer of resistance to leaf rust and mosaic viruses from H. bulbosum into winter barley (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 119 (2000), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: An outline is given of results for the transfer of new resistances against leaf rust and barley mosaic viruses from Hordeum bulbosum into winter barley. Progenies from backcrosses of barley cultivars with H. bulbosum hybrids were tested both in conventional breeding trials and in additional tests under controlled conditions. Resistance to both pathogens proved to be stable and of good heritability, with differences occurring which depended on the combinations used. Lines with resistance to all leaf rust and mosaic viruses tested, or to either one, were selected. Both resistances segregated independently.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2000.00475.x
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  • 4
    Electronic Resource
    Electronic Resource
    Structural phase transitions in (CH"3)"3NHCdCl"3
    Amsterdam : Elsevier
    Solid State Communications 27 (1978), S. 901-905 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(78)90201-6
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  • 5
    Electronic Resource
    Electronic Resource
    NMR investigation of structural phase transitions in the layer structure (CH"3ND"3)"2 MnCl"4
    Amsterdam : Elsevier
    Solid State Communications 18 (1976), S. 1307-1309 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(76)90965-0
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  • 6
    Electronic Resource
    Electronic Resource
    Risk and protective factors for sporadic basal cell carcinoma: results of a two-centre case–control study in southern Germany. Clinical actinic elastosis may be a protective factor (2004)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 151 (2004), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background  There are very few data regarding sun exposure behaviour of patients with basal cell carcinoma (BCC) in central Europe.Objectives  A case–control study of patients with sporadic BCC was conducted to assess the risk of occupational and leisure-time sun exposure behaviour, precursor lesions for skin cancer and phenotypic factors on the development of sporadic BCC in Ulm and Dresden, Germany.Methods  A comparison was made of 213 patients with BCC (128 from Ulm, 85 from Dresden; 103 men and 110 women; median age at diagnosis 69 years) and 411 controls (237 from Ulm, 174 from Dresden; 197 men and 214 women; median age 58 years). Crude odds ratios (ORs) and corresponding 95% confidence intervals for all of 64 possible risk factors revealed strong associations in 33 items. Selection of important risk factors was performed in a multiple logistic regression.Results  For sporadic BCC, an increased risk was shown for persons with actinic cheilitis (OR 7·1), actinic keratosis (OR 2·7) and solar lentigo (OR 2·5). The only phenotypic factor indicating risk of sporadic BCC was hair colour, with a higher risk for red/fair than brown/black hair (OR 4·3). There was an increased risk for persons with BCC in first-degree relatives (OR 5·1) and those with sunburn 20 years before sporadic BCC was diagnosed (OR 3·6). Additionally, occupational ultraviolet (UV) exposure appeared to be a risk factor (OR 2·4). In contrast, clinical actinic elastosis showed a protective effect (OR 0·1).Conclusions  In contrast to earlier reports, clinical actinic elastosis turned out to be the only protective factor for sporadic BCC. A special relationship between wrinkling and BCC risk could not be shown. For basic research, future work should be aimed at elucidating further the different forms of collagen repair processes after intermittent and/or chronic UV exposure. The data strongly support the recommendation that a change in recreational UV exposure habits in individuals, and sunburn avoidance in particular, are necessary not only because of the increased long-term risk of melanoma, but also because of the risk of other skin cancers such as sporadic BCC.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.2004.06030.x
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  • 7
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1990)
    Springer
    Journal of molecular medicine 68 (1990), S. 1182-1182 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01815276
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  • 8
    Electronic Resource
    Electronic Resource
    Increased cotinine elimination and cotinine-N-oxide formation by phenobarbital induction in rat and mouse (1992)
    Springer
    Journal of molecular medicine 70 (1992), S. 175-181 
    Details
    ISSN: 1432-1440
    Keywords: Nicotine ; Metabolism ; Lung ; Liver ; Phenobarbital ; Cytochrome P-450
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The metabolic fate of cotinine, the major metabolite of nicotine, was studied in phenobarbital-induced and non-induced isolated perfused rat lung and liver and in isolated hepatocytes of rats and mice. The non-induced lung tissue showed low cotinine metabolizing capacity while the perfused liver was approximately four times more active. After phenobarbital pretreatment the metabolism of cotinine was increased eight-fold in the intact liver. A substantial increase in cotinine metabolism was also found in isolated hepatocytes from PB-induced rats and in cultured mouse hepatocytes grown in a medium supplemented with PB. This was paralleled by an increased formation of cotinine-N-oxide which could be inhibited by 100 μM metyrapone. In contrast, the pulmonary elimination of cotinine was not affected by PB. A dominant role of primary N-oxidation of nicotine compared to C-oxidation was apparent in non-induced rat liver. After PB treatment the rate of nicotine-N′-oxide formation dropped markedly while the cotinine related pathways were increased causing an inversion of the N- to C-oxidation ratio. In the lung, cotinine formation was the preferred metabolic pathway of nicotine already in non-induced organs. The pattern of nicotine metabolites was not altered by PB induction. In conscious PB-induced rats receiving nicotine orally or intravenously, 3′-hydroxycotinine was found as the main urinary metabolite of nicotine while only a small fraction was excreted as cotinine-N-oxide. This discrepancy between the profile of nicotine metabolites in perfused liver and lung and in the urine in vivo indicates that extrahepatic organs other than the lung may be important sites of cotinine metabolism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00184648
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  • 9
    Electronic Resource
    Electronic Resource
    Molecular mapping of a new gene in wild barley conferring complete resistance to leaf rust (Puccinia hordei Otth) (1998)
    Springer
    Theoretical and applied genetics 97 (1998), S. 1235-1239 
    Details
    ISSN: 1432-2242
    Keywords: Key words CAPS ; Disease resistance ; Hordeum vulgare ssp. spontaneum ; RFLP-mapping ; STS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A dominant gene conferring resistance to all known races of Puccinia hordei Otth was identified in two accessions of Hordeum vulgare ssp. spontaneum. Using restriction fragment length polymorphism (RFLP) markers the gene was mapped on chromosome 2HS in doubled-haploid populations derived from crosses of both accessions to the susceptible cultivar L94. Until now, complete leaf rust resistance was not known to be conditioned by genetic factors on this barley chromosome. Therefore, the designation Rph16 is proposed for the gene described in this study. A series of sequence tagged site (STS) and cleaved amplified polymorphic sequence (CAPS) markers were generated by conversion of RFLP probes which originate from the chromosomal region carrying the resistance gene. Two PCR-based markers were shown to co-segregate with the Rph16 gene in both populations thus providing the basis for marker-assisted selection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051015
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  • 10
    Electronic Resource
    Electronic Resource
    Localising QTLs for leaf rust resistance and agronomic traits in barley (Hordeum vulgare L.) (2000)
    Springer
    Theoretical and applied genetics 100 (2000), S. 881-888 
    Details
    ISSN: 1432-2242
    Keywords: Key words Hordeum ; QTL ; Puccinia hordei ; Agronomic traits
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The Hordeum vulgare accession ’HOR 1063’ was crossed with the barley cultivar Krona, and 220 doubled haploid lines were produced based on this cross. A molecular map was constructed based on RFLP markers. Field trials were performed over 2 years and at two locations. In field trials, resistance to leaf rust by means of artificial infection, heading date, plant height and Kernel weight were assessed. For leaf rust resistance, 4 QTLs were localised, that explained 96.1% of the genetic variation. One QTL on chromosome 4H confirmed a position found in another genetic background and one mapped to the same position as Rph16 on chromosome 2H. All digenic effects decreased the effects of the respective QTLs. In addition to the denso-locus and the hex-v locus, other QTLs influencing heading date, plant length and kernel weight were found in this cross.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051365
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