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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 93 (1996), S. 1054-1060 
    ISSN: 1432-2242
    Keywords: Key wordsTriticum aestivum ; Rye ; Secale cereale ; 1BL.1RS translocation ; 1AL.1RS translocation ; Gliadin ; Electrophoresis ; Erysiphe graminis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A suppressor of resistance to powdery mildew conferred by Pm8 showed complete association with the presence of a storage-protein marker resolved by electrophoresis on SDS-PAGE gels. This marker was identified as the product of the gliadin allele Gli-A1a. The mildew-response phenotypes of wheats possessing the 1BL.1RS translocation were completely predictable from electrophoretograms. The suppressor, designated SuPm8, was located on chromosome 1AS. It was specific in its suppression of Pm8, and did not affect the rye-derived resistance phenotypes of wheat lines with Pm17, also located in 1RS, or of lines with Pm7.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 93 (1996), S. 1054-1060 
    ISSN: 1432-2242
    Keywords: Triticum aestivum ; Rye ; Secale cereale ; 1BL.1RS translocation ; 1AL.1RS translocation ; Gliadin, Electrophoresis ; Erysiphe graminis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A suppressor of resistance to powdery mildew conferred by Pm8 showed complete association with the presence of a storage-protein marker resolved by electrophoresis on SDS-PAGE gels. This marker was identified as the product of the gliadin allele Gli-A1a. The mildewresponse phenotypes of wheats possessing the 1BL.1RS translocation were completely predictable from electrophoretograms. The suppressor, designated SuPm8, was located on chromosome 1AS. It was specific in its suppression of Pm8, and did not affect the rye-derived resistance phenotypes of wheat lines with Pm17, also located in 1RS, or of lines with Pm7.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0878
    Keywords: Median eminence ; Greenfinch (Chloris chloris L.) ; Anti-synthetic LHRH serum ; Binding sites ; Immunofluorescent localization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary With an indirect immunofluorescence technique and an antiserum raised against synthetic LHRH, immunofluorescent granules were observed in fine radially oriented fibres in the palisade layer of the zona externa in both the anterior and the posterior divisions of the median eminence in the greenfinch. There was no specific immunofluorescence in the tractus supraoptico-hypophyseus. It is concluded that the greenfinch median eminence contains material which is similar to mammalian LHRH.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 127 (1972), S. 552-569 
    ISSN: 1432-0878
    Keywords: Hypothalamus ; Median eminence ; Coturnix ; Tancyte and vascular patterns
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Im basalen Hypothalamus der Wachtel Coturnix wurde ein gut entwickeltes System von ependymalen Gliazellen mit langen Fortsätzen beobachtet. Diese Ependymzellen (Tanycyten, Horstmann, 1954) reichen bis an die Oberfläche des Gehirns. Die Tanycyten der Eminentia mediana und des ventro-lateralen Hypothalamus bilden eine Verbindung zwischen dem III. Ventrikel und dem portalen Hypophysenkreislauf. Die Fortsätze der ventro-lateralen Tanycyten enden in der Region des Sulcus infundibularis an einem lockeren Gefäßnetz, das sich in das primäre Kapillarnetz des portalen Gefäßsystems der Hypophyse fortsetzt. Das subependymale Kapillarnetz der Eminentia mediana verbindet die Gefäßsysteme der kontralateralen Hypothalamushälften. Hier gibt es keine direkten Verbindungen mit dem portalen Gefäßapparat. Aufgrund von licht- und elektronenmikroskopischen Studien wird das Ventrikelependym von Coturnix in eine dorsale „typische“ Region und in zwei „glanduläre“ Regionen (ventrolateral und ventral) gegliedert. Jedes dieser Gebiete zeigt unterschiedliche Tanycytenformen. Einer der beiden „glandulären“ Tanycytentypen (Typ 3), der im Verein mit dem ventrolateralen „glandulären“ Ependym auftritt, hat keinen Kontakt mit dem III. Ventrikel. Ultrastrukturstudien am „glandulären“ Ependym ergaben keine sicheren Unterschiede zwischen kastrierten und mit Oestrogen oder Testosteron behandelten, sowie zwischen geschlechtsreifen und nicht geschlechtsreifen Wachteln. Die Möglichkeit einer neuroendokrinen Funktion des Tanycyten-Gefäß-Systems wird diskutiert.
    Notes: Summary A well developed system of ependymal glial cells with long basilar processes stretching to the surface of the brain (tanycytes, Horstmann, 1954) has been described in the basal hypothalamus of Coturnix quail. The tanycytes both in the median eminence and the ventro-lateral hypothalamus form a link between the third ventricle and the hypophysial circulation. The processes of the ventro-lateral tanycytes terminate in the region of the infundibular sulcus in apposition to a loose network of vessels which are continuous with the primary plexus of the hypophysial portal system. Within the median eminence, the subependymal capillary network connects the vasculature of the contra-lateral sides of hypothalamus. There are no direct connections with the hypophysial portal vessels. With the aid of the light and electron microscope the ventricular ependyma was divided into a dorsal “typical” region and two “glandular” regions (ventro-lateral and ventral). Each region contains different forms of tanycyte. One of the two forms of tanycyte (designated type 3) associated with the ventro-lateral glandular ependyma has no contact with the third ventricle. Ultrastructural studies on the “glandular” ependyma failed to show any obvious differences between castrated, oestrogen or testosterone implanted, and sexually mature or immature quail. The possibility that the tanycyte-vascular system may have a neuroendocrine role is discussed.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 222 (1982), S. 283-298 
    ISSN: 1432-0878
    Keywords: LH-RH-neurones ; Diencephalon ; Immunohistochemistry ; Chicken
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Nerve fibres and perikarya containing LH-RH-like material were identified immunohistochemically in the diencephalon of the domestic hen using the peroxidase-anti-peroxidase technique. Perikarya were thinly scattered in bilateral bands close to the third ventricle extending from the nucleus praeopticus paraventricularis magnocellularis, passing in front of the anterior commissure into the septal area. In this latter area, the perikarya tended to spread out laterally. A few perikarya were seen in the anterior portion of the nucleus paraventricularis magnocellularis but were not found in the infundibular nuclear complex. Fibre tracts were seen running dorso-ventrally in the preoptic area apparently associated with the lamina terminalis. Fibres, possibly nerve terminals, were found in the lamina terminalis and in the external layers of the anterior and posterior divisions of the median eminence. A large number of fibres was seen distributed throughout the infundibular nuclear complex; scattered fibres were found close to the third ventricle in the anterior hypothalamus. Extrahypothalamic fibres were also observed to project from the septal area into other parts of the telencephalon.
    Type of Medium: Electronic Resource
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