Loss of chloroplastic DNA in a Euglena mutant during growth in darkness.

Autor: Ohki, Yoko, Hasegawa, Keiko, Musashi, Akihiko, Tsubo, Yoshihiro
Zdroj: Archives of Microbiology; Oct1984, Vol. 139 Issue 2/3, p147-150, 4p
Abstrakt: The mutant strain U of Euglena gracilis, different from the wild type strain Z, has lost the ability to form chloroplasts during growth in the dark. Chloroplastic DNA could not be detected by CsCl density analysis in the dark-grown strain U. Chloroplast nucleoids fluoro-stained by DAPI were found in the light-grown cells, but not in the dark-grown U. Target number analysed by UV irradiation on the chloroplast formation ability decreased rapidly during cell-growth in darkness. These results suggest that U has lost plastid DNA during cell-growth in darkness. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index