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The Incorporation of Phenylalanine and Uridine in Tetrahymena: A Pressure Study 1
Author(s) -
LOWEJINDE LOUISE,
ZIMMERMAN ARTHUR M.
Publication year - 1971
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.1550-7408.1971.tb03273.x
Subject(s) - tetrahymena pyriformis , phenylalanine , tetrahymena , uridine , cell division , biochemistry , chemistry , protein biosynthesis , division (mathematics) , microbiology and biotechnology , biology , cell , rna , amino acid , gene , arithmetic , mathematics
SYNOPSIS. The action of pressure was studied on the incorporation of labelled phenylalanine and uridine, and on the synthesis of water‐soluble proteins in heat‐synchronized Tetrahymena pyriformis. Incorporation of [ 14 C] phenylalanine and [ 3 H] uridine into TCA insoluble fractions was markedly decreased in pressuretreated Tetrahymena. Moreover, the incorporation was dependent upon the age of the cells. Water‐soluble protein synthesis was unaffected. These results appear consistent with the proposal that pressure‐induced division‐delays occur by inhibiting the accumulation of “division proteins” which are essential for cell division.