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  • Hymenoptera  (1)
  • proteinase inhibitor
  • Springer  (2)
  • 2010-2014
  • 1990-1994  (2)
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  • Springer  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Mandibular gland secretions of the male beewolvesPhilanthus crabroniformis, P. barbatus, andP. pulcher (Hymenoptera: Sphecidae) (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 27-37 
    Details
    ISSN: 1573-1561
    Keywords: Philanthus crabroniformis ; Philanthus barbatus ; Philanthus pulcher ; Hymenoptera ; Sphecidae ; beewolf ; mandibular glands ; pheromones ; semiochemicals ; mass spectrometry ; infrared spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The composition of the territorial marking pheromones from mandibular glands of males of the beewolvesPhilanthus crabroniformis, P. barbatus, andP. pulcher have been determined. The structures of the components were elucidated by gas chromatography-mass spectrometry and gas chromatography-Fourier transform infrared spectroscopy. The major compound ofP. crabroniformis is isopropyl tetradecanoate, with somewhat lesser amounts of 2-tridecanone, 3-methyl-3-butenyl tetradecanoate, and 92∶8 (Z)∶(E)-11-eicosen-1-ol. The major compounds ofP. barbatus are ethyl tetradecanoate and hexadecanal, which are present in approximately a 60∶40 ratio. These two compounds comprise over 95% of the neutral lipids. Also present in lesser amounts are ethyl dodecanoate, tetradecanal, hexadecan-1-ol, a Δ x -octadecen-1-ol, and octadecan-1-ol. The major compounds ofP. pulcher are ethyl (Z)-7-hexadecenoate and geranylgeraniol acetate, which comprise nearly 90% of the neutral lipid fraction, with smaller amounts of tetradecanal, pentadecanal, and ethyl hexadecanoate; trace amounts of Δ x hexadecenal, hexadecanal, and octadecanal are also present.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00997162
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  • 2
    Electronic Resource
    Electronic Resource
    Systemically wound-responsive genes in poplar trees encode proteins similar to sweet potato sporamins and legume Kunitz trypsin inhibitors (1990)
    Springer
    Plant molecular biology 14 (1990), S. 51-59 
    Details
    ISSN: 1573-5028
    Keywords: cDNA cloning ; genomic cloning ; plant defense ; Populus ; proteinase inhibitor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract When the lower leaves of hybrid poplar trees are mechanically wounded, several novel mRNAs accumulate in the unwounded upper leaves (Parsons TJ, Bradshaw HD, Gordon MP: Systemic accumulation of specific mRNAs in response to wounding in poplar trees, Proc Natl Acad Sci USA, in press). A partial cDNA clone corresponding to a transcript from the wound-responsive gene designated win 3 (wound-inducible) has been cloned by differential hybridization to 32P-labelled cDNA from the leaves of wounded trees. Northern blots show a large accumulation of win 3 transcripts in the unwounded leaves of wounded trees. Southern blot analysis of poplar DNA suggests that win 3 is a member of a multigene family. The nucleotide sequences of several win 3 cDNA clones have been determined, indicating that at least three win 3 gene family members are transcribed. A genomic clone of a win 3 gene family member has been isolated and a 1.5 kb Hind III fragment containing the predicted protein-coding and 5′ upstream regions has been sequenced. The putative win 3 gene product is similar to the major soluble proteins of sweet potato tubers, sporamin A and sporamin B. Both Win3 and the sporamins share significant amino acid sequence identity with Kunitz-type trypsin inhibitors from legume seeds. The Kunitz family of proteinase inhibitors thus joins three other proteinase inhibitor families which are systemically responsive to wounding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015654
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