Proliferation of the hyperthermophilic archaeon Pyrobaculum islandicum by cell fission.
Pyrobaculum islandicum is a hyperthermophilic archaeon. P. islandicum cells have been suggested to multiply by constriction, budding and branching, as no septa were observed in cells by phase-contrast light microscopy. In this study, we observed the cells using transmission electron microscopy, scanning electron microscopy, and light microscopy with dark-field image analyses, and we report binary fission via septum formation to be the main mode of P. islandicum's proliferation. "Long cells" reported previously were found to comprise several cylindrical cells that align in tandem.
Sonobe
Seiji
S
Graduate School of Life Science, University of Hyogo, Kamigori, Hyogo, Japan.
Aoyama
Kazue
K
Suzuki
Chihiro
C
Saito
Ko-hei
KH
Nagata
Kumiko
K
Shimmen
Teruo
T
Nagata
Yoko
Y
D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D041543:Pyrobaculum / Q000166:cytology / Q000254:growth & development* / Q000648:ultrastructure