Biomedical subjects
Publications and source records attributed to H Kothbauer.
Eggs of Rana ridibunda, Rana lessonae and their hybrid Rana esculenta were examined for their immunochemical properties. The reaction spectra obtained confirm the hybrid origin of Rana esculenta.
Permethylation analyses of the spawn material of three toad (Bufo) species allow the conclusion that the serologically determinant group in Bufo bufo spawn is identical with that found in human and hog blood-group A substances (i.e. GalNAc(alpha1,3) [Fuc(alpha1,2)] Gal -), and the serologically determinant group in Bufo viridis and Bufo calamita spawn is identical with that found in blood-group H substances (i.e. Fuc(alpha1,2) Gal -).
Female gonads of the perch (Perca fluviatilis) in various stages of development are tested for hemagglutinin activity against human erythrocytes. Based on the different agglutination patterns obtained, and on inhibition tests with L-fucose and a mature gonad of a male perch, the appearance two different agglutinins in the course of the development of the female gonad is assumed.
Eggs of three Bufo species (B. bufo, B. viridis and B. calamita) were examined for blood group activity. B. bufo showed distinct A activity, whereas in B. viridis and B. calamita a marked H-activity was observed. These results correspond with the zoological systematic classification of the three toad species tested.
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