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  • 1
    Digitale Medien
    Digitale Medien
    Autodetection and chemistry of female and male pheromone in both sexes of the tiger moth Panaxia quadripunctaria (1998)
    Springer
    Journal of comparative physiology 182 (1998), S. 153-161 
    Details
    ISSN: 1432-1351
    Schlagwort(e): Key words Arctiidae ; Pheromones ; Autodetection ; Hydroxydanaidal ; Danaidal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Female moths of Panaxia quadripunctaria PODA (Lepidoptera, Arctiidae), produce (Z,Z)-6,9-heneicosadiene (I) as the major and (Z,Z)-6,9-eicosadiene (II) as the minor component of a putative pheromone. Related compounds occur in trace amounts. The abdominal scent glands contain 5–10 μg of (I) and 50–100 ng of (II). Recordings of electroantennogram (EAG) responses to (I), (II), and to female glands are of equal amplitude in both sexes. Females are thus capable of pheromone autodetection in contrast to the majority of moths where females are considered to be anosmic for their own attractant. The EAG threshold to (I) was below 1 ng at the odour source. The odour of the male scent gland (corema) elicited significant EAGs in both sexes. The chemical contents of coremata varied with the provenience of the moths. A variety of ethyl esters was always found, yet hydroxydanaidal (up to 20 μg/corema) and traces of danaidal, only in some samples. All these scents might be components of a male pheromone. Peculiar scent scales on the coremata are exposed during the extrusion. Antennae of both sexes have similar inventories of trichoid sensilla.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s003590050166
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  • 2
    Digitale Medien
    Digitale Medien
    Sexual dimorphism in neuronal projections from the antennae of silk moths (Bombyx mori, Antheraea polyphemus) and the gypsy moth (Lymantria dispar) (1987)
    Springer
    Cell & tissue research 249 (1987), S. 39-50 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Olfaction ; Antennae ; Pheromones ; Bombykol ; Sexual dimorphism ; Bombyx mori ; Antheraea polyphemus ; Lymantria dispar
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The antennal lobe of both sexes of the silk moth Bombyx mori contains 55–60 ventrally located antennal glomeruli; in addition, that of the male contains a dorsal macroglomerular complex (MGC). A group of identifiable glomeruli consisting of two lateral large glomeruli (LLG) and four medial small glomeruli (MSG) is present in both sexes, but the LLG are greatly enlarged in the female. A MGC is also present in the male gypsy moth Lymantria dispar and male giant silk moth Antheraea polyphemus. The MGC in all of these species is organized into 3–4 distinct levels of glomeruli. Antennal sensory fibers were stained by cobalt backfills in B. mori, A. polyphemus, and L. dispar. Most fibers stained from cut long hairs (sensilla trichodea) projected to MGC in males and LLG in both sexes of B. mori. The distribution of fibers in the MGC of B. mori was topographically biased in that a majority of fibers from anterior branches projected medially in MGC while most fibers from posterior branches projected laterally or anteriorly. Terminal arborizations of single fibers were each restricted to a single glomerular level of the MGC. Fibers projecting to the posterior antennal center were frequently stained in cut-hair and control preparations, apparently by uptake of cobalt through intact sensilla on flagellar branches.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00215416
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  • 3
    Digitale Medien
    Digitale Medien
    Untersuchungen an Oximkomplexen. IV Über die Reaktion von Kobalt(II)-Salzen mit Diacetylmonoxim-β-pyridyl-(2)-äthylimin (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 346 (1966), S. 173-180 
    Details
    ISSN: 0044-2313
    Schlagwort(e): Chemistry ; Inorganic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Cobalt(II) salts react with excess diacetylmonoxime-β-pyridyl-(2)-ethylimine (DPÄ) forming complexes of the type [CoIII(DPÄ - H)2]X with X = Cl, J, NCS, NO3, ClO4, atmospheric oxygen being the oxidant. Starting with Co to ligand ratios of 1:2 and 1:1, complex salts of the types [Co(DPÄ - H)2]2[Co(NCS)4] and [Co(DPÄ - H)2] [CoCl3(C2H5OH)] · C2H5OH, respectively, are obtained. The complexing ability of DPÄ is discussed and compared with those of other oxime ligands.
    Notizen: Kobalt(II)-Salze bilden bei der Umsetzung mit dem in der Überschrift genannten Liganden (DPÄ) in großem Überschuß Komplexe des Typs [CoIII(DPÄ - H)2]X (X = Cl, J, NCS, NO3, ClO4). Als Oxydationsmittel fungiert der Luftsauerstoff. Werden die Komponenten im Verhältnis 1:2 bzw. 1:1 zur Reaktion gebracht, so entstehen Komplexsalze wie [Co(DPÄ - H)2]2[Co(NCS)4] und [Co(DPÄ - H)2] [CoCl3(C2H5OH)] · C2H5OH. Das komplexchemische Verhalten von DPÄ wird mit dem anderer Oximliganden verglichen.
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/zaac.19663460309
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  • 4
    Digitale Medien
    Digitale Medien
    Untersuchungen an Oximkomplexen. II. Diacetylmonoxim-β-pyridyl-(2)-äthylimin, ein neuer dreizähliger Ligand (1964)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 333 (1964), S. 90-98 
    Details
    ISSN: 0044-2313
    Schlagwort(e): Chemistry ; Inorganic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Diacetyl monoxime-β-pyridyl-(2)-ethylimine (DPE) reacts with Ni(II) salts forming paramagnetic complexes of the type Ni(DPE)2X2 (with X = NO3, ClO4, J-). DPE behaves as a tridentate ligand. In the compounds Ni(DPE)2(SCN)2 and Ni(DPE)(SCN)2, the thiocyanate ions participate, at least partially, in the complex formation.Whereas Cu(II) ions normally form 1,1 complexes of the type Cu(DPE)Y2 with Y = Cl-, Br-, NO3, from the interaction between the perchlorate and DPE a chelate compound of the formula [Cu(DPE - H)]ClO4, probably being dimeric, results. The compounds Zn(DPE)Cl2 and Zn(DPE)J2 are non-electrolytes in acetonitrile.
    Notizen: Diacetylmonoxim-β-pyridyl-(2)-äthylimin (DPÄ) bildet mit Nickel(II)salzen paramagnetische Komplexe des Typs Ni(DPÄ)2X2 (X = NO3. ClO4- und J-). DPÄ fungiert darin als dreizähliger Ligand. In den Verbindungen Ni(DPÄ)2(SCN)2 und Ni(DPÄ)(SCN)2 sind die Rhodanidionen zumindest teilweise an der Komplexbildung beteiligt. Kupfer(II)-Ionen bilden mit DPÄ die 1,1-Komplexe Cu(DPÄ)Y2 [Y = Cl-, Br- und NO3]. Nur bei der Umsetzung mit Kupferperchlorat entsteht ein, wahrscheinlich dimerer, Innerkomplex [Cu(DPÄ - H)]ClO4. Die Verbindungen Zn(DPÄ)Cl2 und Zn(DPÄ)J2 besitzen in Acetonitril Nichtelektrolytcharakter.
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/zaac.19643330113
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