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The Inheritance of H‐L Serotype Differences at Conjugation in Tetrahymena *
Author(s) -
NANNEY D. L.
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.tb01654.x
Subject(s) - tetrahymena , paramecium aurelia , tetrahymena pyriformis , biology , serotype , paramecium , cytoplasm , antigen , genetics , microbiology and biotechnology
SYNOPSIS. Cells of variety 1 , Tetrahymena pyriformis , manifest different immobilization antigens when grown at 15d̀ and 25d̀C. These differences are partially maintained for a period of growth at an intermediate temperature. Crosses were performed at intermediate temperatures between parental cultures conditioned to high and low temperatures and the antigenic characteristics of their progeny were determined. When conjugation is abortive and paired cells do not complete conjugation, the cells separate and produce clones with distinctive serotypes. When conjugation is completed, however, no systematic differences between exconjugants can be demonstrated. These results differ from those obtained under comparable circumstances in Paramecium aurelia , and fail to support the idea that the cytoplasm plays a significant role in the maintenance of serotypes in Tetrahymena.