兩棲類の血島由來の赤血球に於けるヘモグロビンの出現について

概要

論文の詳細を見る
The developmental stage in which hemoglobin occurs in embryonic erythrocytes was examined in the amphibians, Rana japonica, Bufo vulgaris and Hynobius tokyoensis. The earliest erythrocytes in circulating blood, which have been derived from the blood islands, do not contain hemoglobin, but have many yolk globules of various sizes in their basophilic cytoplasm. A careful investigation with the color reaction to benzidine solution (a few crystals of benzidine being dissolved in 2cc of 96% alcohol, to which a mixture of 0.5cc of hydrogen peroxide and 4.5cc of 70% alcohol is added) has revealed that hemoglobin is formed before, and not after, the features described above of the embryonic erythrocytes are lost. In Rana and Bufo, is found in the erythrocytes when embryos show 3 branches on the 1st outer gill, while in Hynobius, at the stage in which the rod-shaped outer gills are going to separate from one another. The results of the present investigation shows that the formation of hemoglobin in the embryonic erythrocytes takes place in the stage earlier than hitherto reported by MAXIMOW ('10), COGHILL ('24), SLONIMSKI ('37) and others.
社団法人日本動物学会の論文
1952-12-15