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Segregation of mitochondria in the cytoplasm of Xenopus vitellogenic oocytes
Author(s) -
Mignotte F.,
Tourte M.,
Mounolou J. C.
Publication year - 1987
Publication title -
biology of the cell
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.543
H-Index - 85
eISSN - 1768-322X
pISSN - 0248-4900
DOI - 10.1111/j.1768-322x.1987.tb00549.x
Subject(s) - vitellogenesis , biology , xenopus , oocyte , mitochondrion , cytoplasm , germ plasm , microbiology and biotechnology , mitochondrial dna , organelle , population , genetics , embryo , gene , demography , sociology
In actively growing vitellogenic oocytes of Xenopus laevis mitochondria segregate into 2 populations. One stays around the nucleus, actively replicates mitochondrial DNA (mtDNA), and builds up most of the stock of the mitochondria in the full‐grown oocyte. The other moves toward the vegetal pole and stops replicating mtDNA early in vitellogenesis. Organelles of this population are components of the germ plasm of the cell.