Now showing items 1-10 of 11
Seasonal variation of metabolism and thyroid activity in the Mexican ground squirrel Citellus mexicanus
Metabolic measurements in thermal neutrality for the Mexican ground squirrel, Citellus mexicanus, in-dicated a mean summer metabolism of 1.10± .08 cc 02/gm/hr and a mean winter metabolism of .56±.08 cc 02/gm/hr. Animals ...
The effects of pyridoxal and ammonium ion on the active transport of methionine and other amino acids in H. diminuta
The uptake and accumulation of methionine and other amino acids in the cestode H. diminuta is studied with respect to the influence of pyridoxal, pyridoxine, and ammonium ion. It is found that neither pyridoxal nor ...
Genetic studies of mutants of Neurospora crassa lacking ornithine transcarbamylase
Arginine has long been of interest to chemists, biochemists and biologists because of its close relation-ship to urea. Srb and Horowitz (1944) isolated many arginineless mutants of Neurospora crassa and found the mutants ...