Annals of Botany 72: 591-594, 1993
© 1993 Annals of Botany Company
Electron-dense Regions in Dividing Mitochondria of a Green Alga, Scenedesmus acutus
Department of Biology, Nara Women's University, 630 Nara, Japan
The dividing and the constricted regions of mitochondria in a green alga, Scenedesmus acutus , were studied by electron microscopy. Electron-dense substances were always visible in these specific regions of mitochondria that had been fixed by freeze-substitution. Thin fibres, which seemed to surround the constricted regions, were also seen. The possibility that the electron-dense regions constitute part of the dividing apparatus of the mitochondria is discussed.Copyright 1993, 1999 Academic Press
Division apparatus, division of mitochondria, electron microscopy, mitochondria, Scenedesmus