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  • mandibular glands  (2)
  • Apis Mellifera  (1)
  • CNS tumor  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Brood Odor Discrimination Abilities in Hygienic Honey Bees (Apis mellifera L.) Using Proboscis Extension Reflex Conditioning (2000)
    Springer
    Journal of insect behavior 13 (2000), S. 87-101 
    Details
    ISSN: 1572-8889
    Keywords: hygienic behavior ; discrimination conditioning ; honey bees ; Apis Mellifera ; olfaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract To understand the effect of abnormal brood odors on the initiation or control of hygienic behavior in honey bees, we employed the associative learning paradigm, proboscis extension reflex conditioning. Bees from two genetic lines(hygienic and non-hygienic) were able to discriminate between high concentrations of two floral odors equally well. Differential discrimination abilities were observed between the two lines when healthy and diseased brood odors were used, with the bees from the hygienic line discriminating between the pair of brood odors better than the non-hygienic bees. These results suggest that hygienic behavior in individual bees is associated with the bees' responses to olfactory stimuli emanating from diseased brood.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007767626594
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immunofluorescent staining of frozen sections for glial fibrillary acidic protein (1982)
    Springer
    Acta neuropathologica 58 (1982), S. 69-72 
    Details
    ISSN: 1432-0533
    Keywords: GFAP ; Glioma ; Biopsy ; Astrocytoma ; CNS tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immunofluorescent staining for glial fibrillary acidic protein (GFAP) has been used as part of the diagnostic evaluation of eleven patients and compared with routine special stains. In one case, a difficult fibrillary neoplasm of the spinal cord, this diagnostic procedure provided rapid, positive identification of the glial nature of the tumor. In all cases, the GFAP reactivity was consistent with staining properties of PTAH and more rapid than PTAH.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00692700
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Formic acid in caustic cephalic secretions of stingless bee,Oxytrigona (Hymenoptera: Apidae) (1987)
    Springer
    Journal of chemical ecology 13 (1987), S. 1079-1086 
    Details
    ISSN: 1573-1561
    Keywords: Defensive secretions ; formic acid ; Oxytrigona ; Hymenoptera ; Apidae ; stingless bees ; mandibular glands ; Meliponinae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The cephalic extracts of two species in the stingless bee genusOxytrigona were analyzed. Extracts made in diethyl ether, and then derivatized with diphenyldiazomethane, revealed large quantities of formic acid, potentially a major defensive secretion of this stingless bee group. We additionally identify several hydrocarbons, aldehydes, ketones, and acetates. Novel diketones identified by others were detected in both species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01020539
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Mandibular glands of stingless bees (Hymenoptera: Apidae): Chemical analysis of their contents and biological function in two species ofMelipona (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 1465-1472 
    Details
    ISSN: 1573-1561
    Keywords: Melipona ; Hymenoptera ; Apidae ; mandibular glands ; 2-heptanol ; skatole ; nerol ; undecane ; alarm response ; stingless bees
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Workers ofMelipona fasciata andM. interrupta triplaridis respond to their respective mandibular gland extracts with alarm recruitment and defensive behavior. Workers rapidly exit from the nest entrance, land on an intruding object, and bite with the mandibles while vibrating the flight muscles. These behaviors are accompanied by the release of the contents of the mandibular glands. Colonies of both species exhibited greater response to their own mandibular gland extracts than to those of other stingless bee species. Chemical analysis identified 2-heptanol as the major component in hexane extracts of each species. Undecane was a constituent of both species; skatole and nerol were identified only in extracts ofM. i. triplaridis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988512
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    Paper (German National Licenses)
    Fulltext
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