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  • Inorganic Chemistry  (52)
  • Growth  (4)
  • Storage  (3)
  • Drosera  (2)
  • Heterosis  (2)
  • Leaf area index
  • Namibia
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Keywords
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  • 11
    Electronic Resource
    Electronic Resource
    The utilization of nitrogen from insect capture by different growth forms of Drosera from Southwest Australia (1991)
    Springer
    Oecologia 87 (1991), S. 240-246 
    Details
    ISSN: 1432-1939
    Keywords: Nitrogen isotope ratio ; Nutrition ; Insectivorous plants ; Drosera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Plants of Drosera species, neighbouring noncarnivorous plants, and arthropods on or near each Drosera sp. were collected at 11 contrasting habitat locations in SW Australia. At three of the sites clones of the rare glandless mutant form of D. erythrorhiza were collected alongside fully glandular counterparts. The δ 15N value (15N/14N natural isotope composition) of insect-free leaf and stem fractions was measured, and the data then used to estimate proportional dependence on insect N (%NdI) for the respective species and growth forms of Drosera. The data indicated lower %NdI values for rosette than for self-supporting erect or for climbing vine species. The latter two groups showed an average %NdI value close to 50%. The %NdI increased with length and biomass of climbing but not erect forms of Drosera. δ 15N values of stems were positively correlated with corresponding values for leaves of Drosera. Leaf material was on average significantly more 15N enriched than stems, possibly due to delayed transport of recent insect-derived N, or to discrimination against 15N in transfer from leaf to the rest of the plant. The comparison of δ 15N values of insects and arthropod prey, glandless and glandular plants of D. erythrorhiza indicated %NdI values of 14.3, 12.2 and 32.2 at the respective sites, while matching comparisons based on δ 15N of insect, reference plants and glandular plants proved less definitive, with only one site recording a positive %NdI (value of 10.4%) despite evidence at all sites of feeding on insects by the glandular plants. The use of the δ 15N technique for studying nutrition of carnivorous species and the ecological significance of insect feeding of different growth forms of Drosera growing in a large range of habitats is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325262
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  • 12
    Electronic Resource
    Electronic Resource
    Environmental regulation of surface conductance for evaporation from vegetation (1995)
    Springer
    Plant ecology 121 (1995), S. 79-87 
    Details
    ISSN: 1573-5052
    Keywords: Canopy ; Evaporation ; Leaf area index ; Scaling ; Surface conductance ; Stomata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We examine conductances for evaporation from both vegetation and soil in response to environmental variables. Data from a vertically-structured pristine forest of Nothofagus are presented as an example of the effects of biodiversity on the scaling of conductances between tiers of plant organisation. Available data sets of maximum leaf stomatal conductances (g lmax ) and bulk vegetation surface conductances (G smax ) are compared. Overall, the ratio G smax /g lmax is consistently close to 3 for seven major vegetation types of diverse structure. An analytical model accounts for this close relationship, and in particular how G smax is conservative against changes in leaf area index because of the compensating decrease in plant canopy transpiration and increase in soil evaporation as leaf area index diminishes. The model is also successfully tested by comparison with canopy conductances of emergent trees measured in the Nothofagus forest. The constraint of vegetation surface conductance and evaporation via environmental regulation by irradiance, air saturation deficit and root zone water supply are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00044674
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  • 13
    Electronic Resource
    Electronic Resource
    Über Alkaligraphitverbindungen (1954)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 277 (1954), S. 156-171 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch thermischen Abbau von C8K sowie durch Umsetzung von Graphit mit Kalium und Rubidium konnten weitere Alkaligraphitverbindungen mit Alkalischichten in nur jeder 3., 4. oder 5. basisparallelen Schichtlücke des Graphitgitters erhalten werden. Die Zusammensetzung der 2. Stufe  -  bisher als C16Me formuliert  -  entspricht C24Me, die der folgenden Stufen im Idealfall C36Me, C48Me, C60Me.Bei allen Stufen haben die den Alkalischichten benachbarten Kohlenstoffschichten identische Lagen übereinander, während die anderen C-Ebenen wie im Graphit zueinander orientiert sind. Für die 1. Stufe, C8Me, wird ein neuer Strukturvorschlag entwickelt.Magnetische Messungen geben für die 1.-5. Stufe einen schwachen Paramagnetismus.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19542770307
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  • 14
    Electronic Resource
    Electronic Resource
    AlkaliammingraphitverbindungenProfessor Walter Hieber zum 60. Geburtstage gewidmet (1955)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 282 (1955), S. 232-240 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Einwirkung von in flüssigem Ammoniak gelöstem Lithium, Natrium, Kalium, Rubidium und Cäsium auf Graphit oder bei der Umsetzung der bekannten Alkaligraphitverbindungen mit flüssigem NH3 entstehen sehr reaktionsfähige Graphitverbindungen, in denen Metallatome und NH3-Molekeln in das Gitter eingelagert sind. Es konnten bisher dargestellt werden: eine blaue Verbindung mit der angenäherten Zusammensetzung C12Me(NH3)2 und der Struktur einer 1. Stufe, sowie eine alkaliärmere, schwarze Verbindung, etwa C28Me(NH3)2 mit der Struktur einer 2. Stufe.Lithium, gelöst in Methylamin, gibt mit Graphit eine blaue 1. Stufe mit der Idealformel C12Li(CH3NH2)2.Durch die Einlagerung vergrößert sich der Abstand benachbarter C-Ebenen im Graphit von 3,35 auf 6,6 kX bei allen Ammoniakaten und auf 6,9 kX bei der Methylaminverbindung.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19552820126
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  • 15
    Electronic Resource
    Electronic Resource
    Über die Konstitution des Stachydrins (1909)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 42 (1909), S. 4654-4659 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19090420472
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  • 16
    Electronic Resource
    Electronic Resource
    Zur Kenntnis der Stachyose und der Lupeose (1910)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 43 (1910), S. 2230-2234 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.191004302179
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  • 17
    Electronic Resource
    Electronic Resource
    Über das spezifische Drehungsvermögen des Glutamins, nebst Bemerkungen über glutaminsaures Ammonium (1912)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 45 (1912), S. 257-262 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19120450136
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  • 18
    Electronic Resource
    Electronic Resource
    Ueber das Vorkommen von Arginin in den Knollen und Wurzeln einiger Pflanzen (1896)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 29 (1896), S. 352-355 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.18960290172
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  • 19
    Electronic Resource
    Electronic Resource
    Ueber die Verbreitung des Glutamins in den Pflanzen (1896)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 29 (1896), S. 1882-1884 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.189602902146
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  • 20
    Electronic Resource
    Electronic Resource
    Ueber ein Spaltungs-product des Arginins (1897)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 30 (1897), S. 2879-2882 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.18970300389
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