Small crenulated erythrocytes appear in the circulation of Rana pipiens during metamorphosis, increase in number as metamorphosis proceeds and gradually lose their wrinkled appearance. At the end of metamorphosis the entire red cell population has been replaced by these new cells. Thyroxine induces
Phosphatase activity in the tissues of the frog, Rana pipiens
β Scribed by Kind, C. Albert ;Macchi, Mary E.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1952
- Tongue
- English
- Weight
- 268 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0095-9898
No coin nor oath required. For personal study only.
β¦ Synopsis
ONE FIGURE
Although there are several reports (Harris, '46 ; Barth, '47, '50) of phosphatase activity of preparations from frog eggs, there appears to be little known about the phosphatases in the tissues of the adult frog. Ponz ('46, '47) has recently reported the presence of glycerophosphatase activity in the digestive tract, liver, kidney, pancreas, and lung of Rana esculenta. The pH optima obtained by Ponz for the liver phosphatases are similar to those generally reported for the mammalian enzymes.
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