Premium
The Effects of Nutrient Deficiencies and Analogs on the Cell and Nuclear Volume of Tetrahymena pyriformis *
Author(s) -
SUMMERS L. G.
Publication year - 1963
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1963.tb01680.x
Subject(s) - tetrahymena pyriformis , tetrahymena , volume (thermodynamics) , cell , biochemistry , nutrient , cell growth , metabolism , amino acid , chemistry , biology , nucleotide , biophysics , ecology , physics , quantum mechanics , gene
SYNOPSIS. Cell volume and nuclear volume measurements were made on Tetrahymena pyriformis strain E cells that had been either (a) suspended in a medium deficient in some nutrient or (b) suspended in a medium containing a metabolic inhibitor. Media deficient in a nucleotide or containing nucleotide analogs did not significantly inhibit growth. However, cell volume changes were observed for cells grown on nucleotidedeficient medium. Amino acid deficient medium inhibited growth completely and both cell and nuclear volume decreased significantly. The minimal volumes attained were 2/3 of the control volume. Media containing amino acid analogs did not completely inhibit growth nor did appreciable volume changes occur. Both cell and nuclear volumes were closely intercorrelated throughout the results.