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  • 1
    Electronic Resource
    Electronic Resource
    Behavior of Certain 3-Hydroxyflavanones toward Bases and Basic Salts of the Alkali Metals and Ammonia (1955)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 77 (1955), S. 1621-1622 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01611a064
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  • 2
    Electronic Resource
    Electronic Resource
    Vitamin E in Sickle Cell Disease Patients (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 565 (1989), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1989.tb24203.x
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  • 3
    Electronic Resource
    Electronic Resource
    Concentrations of Gibberellin in Chilled Hazel Seeds (1968)
    [s.l.] : Nature Publishing Group
    Nature 220 (1968), S. 85-86 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Assay, using excised epicotyls of dwarf peas, of thin-layer chromatograms of the acidic diethyl ether fractions from cotyledons of chilled hazel seeds. A, From cotyledons of eight seeds after 28 days at 5 C; B, from cotyledons of five seeds after 28 days at 5 C and 2 days at 20 C; C, from ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/220085a0
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  • 4
    Electronic Resource
    Electronic Resource
    Use of Tissue Cultures in Virus Research (1957)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 11 (1957), S. 459-508 
    Details
    ISSN: 0066-4227
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.mi.11.100157.002331
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  • 5
    Electronic Resource
    Electronic Resource
    Cultural Characterization of Animal Cells (1962)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 16 (1962), S. 141-188 
    Details
    ISSN: 0066-4227
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.mi.16.100162.001041
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  • 6
    Electronic Resource
    Electronic Resource
    Evidence that the induction of crassulacean acid metabolism by water stress in Mesembryanthemum crystallinum (L.) involves root signalling (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 20 (1997), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The aim of this study was to investigate whether the root system of Mesembryanthemum crystallinum (L.) plays a role in triggering the induction of crassulacean acid metabolism (CAM) during water stress. Depriving well-irrigated plants of water, by allowing the soil surrounding the roots to dry, caused increased daily losses in leaf relative water content (RVVC) and mesophyll cell turgor pressure. The RWC of the roots also declined. Subsequently plants exhibited physiological characteristics of CAM photosynthesis (i.e. diurnal fluctuations in leaf titratable acidity and nocturnal net CO2 fixation). When the root system of plants was divided equally between two soil compartments and one half deprived of water, plants exhibited physiological characteristics of CAM without prior changes in leaf RWC content or mesophyll cell turgor pressure. Only the RWC of the water-stressed portion of the roots was reduced. These data suggest that in water-stressed plants daily changes in leaf water relations greater than those observed in well-irrigated plants, are not essential to trigger CAM expression. It is probable that a reduction in soil water availability can be perceived by the roots of M. crystallinum and that this information is conveyed to the leaves triggering the transition from C3 to CAM photosynthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3040.1997.d01-50.x
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  • 7
    Electronic Resource
    Electronic Resource
    Success story (1990)
    [s.l.] : Nature Publishing Group
    Nature 348 (1990), S. 498-498 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IF we are what we eat then, indeed, all flesh is grass. From the earliest days of agricultural society man has depended on the grass family for his bread, beer and beef. The Gramineae is one of the largest plant families with more than 600 genera and perhaps 10,000 species, found in virtually all ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/348498a0
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  • 8
    Electronic Resource
    Electronic Resource
    Studies in seed dormancy (1973)
    Springer
    Planta 110 (1973), S. 303-310 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary ABA has been identified by GLC-MS and routinely determined by GLC as one of several inhibitory substances in the testa and pericarp of hazel nuts. Its concentration in newly harvested nuts, which had not developed embryo dormancy, was 19.0 nmoles/g dry weight for the testa, 1.4 nmoles/g for the pericarp and 0.09 nmoles/g for the embryo. Dry storage of the nuts resulted in the development of embryo dormancy together with a slight loss of ABA. On imbibition of dormant nuts at 5° C and 20° C there was a 61% loss of ABA from the testa and pericarp in both cases. However the 5° C imbibition resulted in the breaking of seed dormancy while the 20° C imbibition had no effect on the dormancy. The ABA of the testa and pericarp seems to be concerned with the maintenance of seed dormancy prior to the onset of embryo dormancy. Subsequent to the onset of embryo dormancy, ABA seems to show little effect on either the maintenance or breaking of seed dormancy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387058
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  • 9
    Electronic Resource
    Electronic Resource
    Studies in seed dormancy (1971)
    Springer
    Planta 100 (1971), S. 303-308 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The germination at 20°, of hazel seeds which had been chilled, was significantly inhibited by 10-4 M solutions of ABA and of five substances which are considered to be inhibitors of gibberellin synthesis, namely CCC, AMO 1618, Phosphon D, B-995 and C-011. When the endogenous gibberellins were extracted from chilled seeds which had been held at 20° for 7 days in the presence of 10-4 M solutions of three of the most effective inhibitors of germination (Phosphon D, B-995 and C-011) it was found that gibberellin accumulation had been substantially inhibited. It is postulated that the inhibition of gibberellin synthesis inhibits the germination of previously chilled hazel seeds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00385194
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  • 10
    Electronic Resource
    Electronic Resource
    Studies in seed dormancy (1971)
    Springer
    Planta 100 (1971), S. 288-302 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The endogenous gibberellins of hazel seeds have been studied by a thin layer chromatography/pea epicotyl bioassay (TLC/bioassay) procedure and also by gas-liquid chromatography (GLC) of the gibberellin methyl esters and the trimethylsilyl ethers of the methyl esters. Consistent results were obtained from the two techniques and provisional identifications of some of the gibberellins were obtained by GLC. The gibberellin which was present in the newly harvested seeds, which do not show embryo dormancy, had largely disappeared after the development of embryo dormancy. During 28 days chilling at 5° there was a small increase in endogenous gibberellin but on transfer to 20° there was a considerable rise in endogenous gibberellins, variously estimated as 64-fold (GLC) or 79-fold (TLC/bioassay), this rise preceding the detection of measurable growth of the embryonic axis. The GLC procedure gave provisional identifications of GA1, GA4 and/or GA7, GA5 and/or GA20, GA6 and/or GA17, and GA8. The gibberellin concentration in the embryonic axis was several hundred-fold greater than that in the cotyledons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00385193
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