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FORMATION OF A PRESPORE SPECIFIC STRUCTURE FROM A MITOCHONDRION DURING DEVELOPMENT OF THE CELLULAR SLIME MOLD DICTYOSTELIUM DISCOIDEUM
Author(s) -
MAEDA YASUO
Publication year - 1971
Publication title -
development, growth and differentiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 66
eISSN - 1440-169X
pISSN - 0012-1592
DOI - 10.1111/j.1440-169x.1971.00211.x
Subject(s) - dictyostelium discoideum , slime mold , mitochondrion , vacuole , microbiology and biotechnology , dictyostelium , biology , cell , cellular compartment , biochemistry , cytoplasm , gene
The origin of a unique vacuole (PSV), which was specifically present in the prespore cell of the cellular slime mold Dictyostelium discoideum. was investigated electronmicroscopically. A considerable number of PSV‐mitochondrion complexes was found in the intermediate fraction between a pure PSV and a pure mitochondria fractions, which were obtained by isopicnic centrifugation of cellular components of the prespore cell. Similar complexes were also observed in the differentiating prespore cells. Furthermore, the activity of succinic dehydrogenase, a typical mitochondrial enzyme was found cytochemically to be localized in the PSV as well as in mitochondria. From these results, it was concluded that the PSV was formed from the mitochondrion through some intermediate steps.