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  • 1
    Electronic Resource
    Electronic Resource
    Reproductive and Pollination Biology of Magnolia and its Allied Genera (Magnoliaceae). I. Floral Volatiles of Several Magnolia and Michelia Species and their Roles in Attracting Insects (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Plant species biology 7 (1992), S. 0 
    Details
    ISSN: 1442-1984
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Volatile substances emitted from the flowers of eight Magnolia taxa (M. sieboldii ssp. japonica, M. praecocissima var. praecocissima and var. borealis, M. tomentosa, M. salicifolia, M. obovata, M. denudata, and M. grandiflora) and one Michelia species (M. compressa) (Magnoliaceae) were examined and identified using GC-MS. Volatile substances of these Magnolia and Michelia species consist primarily of monoterpenoids and sesquiterpenoids produced by the mevalonate pathway, acetogenins by the acetate-malonate pathway, and phenyl-propanoids by the shikimate pathway. These Magnolia and Michelia species all possessed various combinations of volatile monoterpenoids, acetogenins, and phenylpropanoids, except for Magnolia obovata, which emitted primarily sesquiterpenoids. Free amino acids in pollen of 12 Magnolia and one Liriodendron species were also analyzed, and their value as food sources for pollinators evaluated.Pollinators visiting the flowers of five Magnolia species were collected in their native sites and identified. Their behaviors and roles as pollinating agents were assessed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1442-1984.1992.tb00225.x
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  • 2
    Electronic Resource
    Electronic Resource
    (Z,E,E)-dodecatrien-1-ol: A minor component of trail pheromone of termite,Coptotermes formosanus Shiraki (1994)
    Springer
    Journal of chemical ecology 20 (1994), S. 199-215 
    Details
    ISSN: 1573-1561
    Keywords: Subterranean termite ; Coptotermes formosanus ; Reticulitermes speratus ; Rhinotermitidae ; Isoptera ; trail pheromonal minor component ; geometrical isomer ; (Z,E,E)-3,6,8-dodecatrien-1-ol ; capillary GC-MS-HR-SIM
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In the course of the elucidation of the primary structure of an isolated trail pheromone fromC. formosanus, a minor component that had the same molecular weight as the major trail pheromone, (Z,Z,E)-3,6,8-dodecatrien-1-ol [(Z,Z,E)-DTE-OH], was detected in the mass chromatogram ofm/z 180 of capillary GC-MS. The mass spectrum of the minor component showed a prominent pattern of dodecatrien-1-ol. Chemical analysis demonstrated that the complete structure was (Z,E,E)-DTE-OH. Furthermore, capillary GC-MS-HR-SIM analysis indicated that the component existed only in the workers ofCoptotermes formosanus Shiraki and was not present in workers ofReticulitermes speratus (Kolbe). This minor component may be a species-specific factor ofC. formosanus, although this was not suggested by a two-choice bioassay.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02066001
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of trail pheromone precursors from Subterranean termite,Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae) (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 517-526 
    Details
    ISSN: 1573-1561
    Keywords: Subterranean termite ; Coptotermes formosanus ; Rhinotermitidae ; Isoptera ; trail pheromone precursor ; dodecatrienyl fatty acid esters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Whole-body extracts of the termite,Coptotermes formosanus Shiraki served for examining the presence of trail pheromone precursor(s). Three trail pheromone precursor candidates, identified as dodecatrienyl stearate, dodecatrienyl oleate, and dodecatrienyl linoleate, were isolated using various chromatographic methods in conjunction with bioassay and by capillary GC-MS analyses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994249
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    Paper (German National Licenses)
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