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Adrenal involvement in determining the time of onset of puberty in the rat.
Previous reports indicate an interaction of the adrenals with the pituitary-gonadal axis. In the present study dependence of the time of onset of puberty upon adrenal function was investigated.
Urea transport-defective strains of Saccharomyces cerevisiae
Experiments characterizing the urea active transport system in Saccharomyces cerevisiae indicate that formamide and acetamide are strong competitive inhibitors of urea accumulation, and adenosine 5'-triphosphate generated by glycolysis in conjunction with formation of an ion gradient is likely the driving force behind urea transport.
A cluster of three genes responsible for allantoin degradation in Saccharomyces cerevisiae.
Mutant strains of Saccharomyces cerevisiae unable to utilize allantoin as sole nitrogen source were isolated and divided into three groups on the basis of their biochemical and genetic
Variability of wheat land-races from Czechoslovakia and Poland
SummaryThe wheat material of collecting missions to Czechoslovakia (in 1974 and 1977) and Poland (in 1976 and 1978) has been analyzed botanically and in respect to its possible breeding value by
A forage grass and small grain legume plant collecting expedition in South East Poland, 1990
The expedition was unique in that it was the first time that vegetative sampling had been applied to the perennial forage grass and legume populations of south east Poland and it is likely that the diverse range of habitats encoutered will be reduced as agricultural practices change.