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Morphology of bakers' yeast and dissolved oxygen saturation during fed‐batch growth
Author(s) -
Gélinas P.,
Goulet J.
Publication year - 1991
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1991.tb00531.x
Subject(s) - yeast , cytoplasm , saccharomyces cerevisiae , mitochondrion , scanning electron microscope , membrane , morphology (biology) , oxygen , biology , biophysics , chemistry , biochemistry , materials science , zoology , composite material , organic chemistry
By complementary use of freeze‐etching and scanning electron microscopy techniques, the morphology of cytoplasmic membrane and mitochondria of bakers' yeast ( Saccharomyces cerevisiae ) was shown to be sensitive to momentary lack of dissolved oxygen in fed‐batch growth medium. Cells grown under constant excess oxygenation had more invaginations on their cytoplasmic membranes and showed larger mitochondria as assessed from the dimensions of their giant mitochondria.