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  • 1
    Electronic Resource
    Electronic Resource
    Sterol Metabolism as a Basis for a Mutualistic Symbiosis (1970)
    [s.l.] : Nature Publishing Group
    Nature 225 (1970), S. 661-662 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The fungal sterol fraction was isolated from F. solani grown on Neutral-Dox-Yeast medium4. Batches of fungus harvested after five, ten or fifteen days' growth were washed, freeze-dried, weighed and analysed for sterols. For each analysis, 15 g of freeze-dried fungus of a given age was homogenized ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/225661b0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Morphology and ultrastructure of the antenna of male Periplaneta americana as related to chemoreception (1974)
    Springer
    Cell & tissue research 150 (1974), S. 1-9 
    Details
    ISSN: 1432-0878
    Keywords: Sensory receptors ; Insects ; Chemoreceptors ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary On the antenna of adult male Periplaneta americana, three size ranges of classical sensilla basiconica were found. Based on SEM, a sensillum of the s. trichodeum shape was revealed, but our TEM efforts indicate that this sensillum has the thin-wall, porous ultrastructure of a sensillum basiconicum. Sensilla basiconica contain flask-shaped cuticular pores. All viewed pores join four or five tubules. The pore tubules clearly contact plasma membranes of dendritic branches. Two sizes of grooved pegs were observed. The terminal segment of the antenna contains a variety of other “receptors”.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220376
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  • 3
    Electronic Resource
    Electronic Resource
    Ultrastructure of the compound eye of the haploid male beetle, Xyleborus ferrugineus (1976)
    Springer
    Cell & tissue research 168 (1976), S. 315-324 
    Details
    ISSN: 1432-0878
    Keywords: Sensory receptor ; Compound eye (Xyleborus ferrugineus) ; Male insect ; Ultrastructure ; Scanning and transmission electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The compound eye of male (haploid) Xyleborus ferrugineus beetles was examined with scanning and transmission electron microscopy. The eye externally consists of ca. 19 to 33 facets. Each ommatidium is composed of a thickly biconvex lenslet with about 50 electron dense and rare layers, but at the junction area between two lenslets there are only about 35 to 37 layers that can be distinguished. A very short (3.4–4.0 μm) acone type crystalline cone is located directly beneath the lenslet. Each ommatidium is surrounded by pigment cells, and pigment granules also appear throughout the cytoplasm of the retinular cells. Some pigment granules are even present below the basement membrane. There are 8 retinular cells. The rhabdomeres of 2 centrally situated photoreceptor cells fuse into a rhabdom which is enveloped by the rhabdomeres of 6 peripheral retinular cells. The rhabdomeres of the 6 peripheral retinular cells join laterally to form a rhabdomeric ring around the central rhabdom. No tracheation was observed among the retinular cells. Virus-like particles are evident near the nucleus in each Semper cell of the crystalline cone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215309
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    Paper (German National Licenses)
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