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  • 1
    ISSN: 1432-2013
    Keywords: Myocardium ; Haemoglobin ; Myoglobin ; Cytochromes ; Cyclostomata ; Myokard ; Hämoglobin ; Myoglobin ; Cytochrome ; Cyclostomata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 1. Spektralphotometrische Untersuchungen am Herzen des primitiven Hexenfisches Myxine glutinosa L. ergaben folgendes: In der Herzmuskulatur von Myxine existiert ein dem Hämoglobin sehr ähnliches Hämoproteid, dessen α-Bande (578.3 nm) gegenüber der des Hämoglobins (577,0 nm) um durchschnittlich 1,3 nm zu längeren Wellenlängen verschoben ist. Die Cytochrome a/a3 (603–609 nm), c (548,9 nm) und b (562,5 nm) sind in der Herzmuskulatur nachzuweisen. 2. Es wurde eine Perfusionsanordnung entwickelt, die die photometrische Messung am isolierten, spontan schlagenden, blutfrei perfundierten Herzen von Myxine ermöglicht. 3. Es wurde eine Methode der Filterpapierphotometrie entwickelt, die auf einfache Weise die Messung geringer Flüssigkeitsmengen (z. B. Blut) gestattet und mit der Cuvettenmethode identische Werte liefert.
    Notes: Summary 1. The heart of the primitive hagfish Myxine glutinosa L. has been directly examined spectrophotometrically. In the cardiac musculature there is a haemoprotein very similar to the haemoglobin. Compared with haemoglobin the α-band (578,3 nm) of this haemoprotein is shifted by 1,3 nm towards longer wavelengths. Cytochromes a+a3 (603–609 nm), cytochrome c (548,9 nm) and cytochrome b (562,5 nm) were also found in the cardiac muculature. 2. Using a special perfusion arrangement the isolated, erythrocyte-free, spontaneously beating hearts of Myxine were examined spectrophotometrically. 3. A spectrophotometric method employing filter paper as a sample holder has been developed. This allows measurements of reflection spectra on small quantities of liquids (e.g. blood). The results are identical with those using standard methods.
    Type of Medium: Electronic Resource
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