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  • Isoptera  (5)
  • Springer  (5)
  • American Association of Petroleum Geologists (AAPG)
  • 1980-1984  (5)
  • 1984  (5)
Collection
Keywords
Publisher
  • Springer  (5)
  • American Association of Petroleum Geologists (AAPG)
Years
  • 1980-1984  (5)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Extreme intraspecific chemical variability in soldier defense secretions of allopatric and sympatric colonies ofLongipeditermes longipes (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 929-944 
    Details
    ISSN: 1573-1561
    Keywords: Termites ; Isoptera ; Termitidae ; Longipeditermes longipes ; defense secretions ; intraspecific variability ; diterpenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The chemical defense secretions of major and minor soldiers of over 18 colonies of the primitive glue-squirting nasute termiteLongipeditermes longipes (Isoptera, Termitidae, Nasutitermitinae) were analyzed chormatographically. The colonies, collected from four rainforest sites in peninsular Malaysia, showed monoterpene patterns rich in pinenes and limonene but with few quantitative differences between colonies. In marked contrast, the diterpene chemistry is high variable, and includes tricyclic (trinervitane), tetracyclic (rippertane), bicyclic (secotrinervitane), and a new spirotetracyclic (longipane) skeleton. Three new natural products are included in this remarkable and unprecedented example of structural diversity among different colonies of a single species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987974
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  • 2
    Electronic Resource
    Electronic Resource
    Diterpene composition of defense secretion of four west AfricanTrinervitermes soldiers (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1363-1370 
    Details
    ISSN: 1573-1561
    Keywords: Termites ; Isoptera ; Termitidae ; Trinervitermes ; defense secretion ; trinervitane ; diterpenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The diterpene composition of the defensive secretions of minor and major soldiers is described for four sympatricTrinervitermes from the Ivory Coast. The degree of intra- and interspecific similarity between the secretions is assessed and related to available information on soldier behavior. A significant chemical dimorphism is observed between minor and major soldiers ofT. geminatus andT. togoensis. Both species build extensive foraging trails in the open air. During these excursions, the workers are protected by numerous minor soldiers, but only a few major ones. Internest comparison inT. geminatus suggests that the differences between minor and major soldiers is as large within a nest as between different nests. By, contrast, inT. trinervius andT. oeconomus both types of soldiers produce very similar secretions. The foraging habits of those species are far more cryptic. The first species builds earthen tunnels, and the second one forages in close proximity to its nest under cover of vegetation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988117
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  • 3
    Electronic Resource
    Electronic Resource
    Chemical composition and efficacy of cephalic gland secretion ofArmitermes chagresi (Isoptera: Termitidae) (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 531-543 
    Details
    ISSN: 1573-1561
    Keywords: Armitermes chagresi ; Isoptera ; Termitidae ; termite ; chemical defense ; cephalic gland ; macrocyclic lactones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Soldiers of the neotropical humivorous termiteArmitermes chagresi have large ice-tong-like mandibles for mechanical defense and a moderate length nasus from which cephalic gland defensive secretions are discharged. Soldiers do not eject secretion, but ooze droplets which are held at the nasus tip by hairs. The chemical secretion is composed of C22–C26 macrocyclic lactones, including C24 and C26 and α- and β-hydroxylated lactones, with C24 macrolides predominating. The cephalic gland secretion has no pheromonal properties and does not induce alarm or attraction in soldiers or workers. Upon application, the secretion repels and is irritating to ants, but does not appear to act as an antihealant. The defensive behavior and chemistry ofA. chagresi is discussed in light of termite ecology and evolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988098
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  • 4
    Electronic Resource
    Electronic Resource
    Structure-activity relationships among aromatic analogs of trail-following pheromone of subterranean termites (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1201-1217 
    Details
    ISSN: 1573-1561
    Keywords: Termites ; Coptotermes ; Prorhinotermes ; Reticulitermes Schedorhinotermes ; Isoptera ; Rhinotermitidae ; structure-activity ; pheromone analogs ; trail-following pheromone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A series of 12 substituted (Z)-4-phenyl-3-buten-l-ol (PBO) derivatives were synthesized and evaluated for trail-following activity in five species of subterranean termites in the generaCoptotermes, Prorhinotermes, Reticulitermes, andSchedorhinotermes (Isoptera: Rhinotermitidae). The unsubstituted parent PBO was the most active for all species, and electron-withdrawing and electron-donating groups both reduced potency. Sensitivity to substitution in the ortho position suggests steric inhibition of binding by the 2′-substituted analogs. Different sensitivities to these pheromone analogs were found among the five species, withR.flavipes andS. lamanianus showing the highest level of trail-following activity for the PBO analogs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988549
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  • 5
    Electronic Resource
    Electronic Resource
    Interspecific variation of diterpene composition ofCubitermes soldier defense secretions (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1219-1231 
    Details
    ISSN: 1573-1561
    Keywords: Cubitermes ; Crenetermes ; Isoptera ; Termitidae ; termite soldier ; defense secretion ; interspecific variation ; diterpene hydrocarbon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Soldiers of the humivorous termite generaCubitermes andCrenetermes (Isoptera: Termitidae: Termitinae) secrete a mixture of unusual diterpene hydrocarbons from the fontanellar opening of the frontal gland. The defense secretions of sixCubitermes species and oneCrenetermes species show species-specific distributions of the five chemically identified major components and 12 unidentified minor components. The secretion is also present with its characteric terpene distribution in white presoldiers and newly molted soldiers, but is completely absent in workers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988550
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