Torrey , Matthew

نویسندگان

  • HARRY BEAL TORREY
  • MATTHEW C. RIDDLE
چکیده

I t is now 16 years since Nowikoff (1908) accelerated the division rate of Paramecium by adding thyroid gland to his cultures. Later , Shumway (1914) reached the same conclusion after a series of more critical and painstaking experiments, and in the following year Budington and Harvey (1915) showed tha t thyroids from various vertebrates would produce similar results. Still later, Shumway (1917) observed the effect of total thyroid on other processes of Paramecium, notably excretion and gastric vacuole formation. From these observations it appeared tha t thyroid was augmenting processes of dissimilation in so far as these might be indicated by effects on excretion and at the same time processes of assimilation as indicated by effects on the division rate. This striking combination of contrasting functions suggested the possibility that two distinct causes might be operating, both associated with the thyroid substance.

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Harry Beal Torrey , Matthew

I t is now 16 years since Nowikoff (1908) accelerated the division rate of Paramecium by adding thyroid gland to his cultures. Later , Shumway (1914) reached the same conclusion after a series of more critical and painstaking experiments, and in the following year Budington and Harvey (1915) showed tha t thyroids from various vertebrates would produce similar results. Still later, Shumway (1917...

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تاریخ انتشار 2003