A Thermophilic, Acidophilic Mycoplasma Isolated from a Coal Refuse Pile

American Association for the Advancement of Science (AAAS) - Tập 170 Số 3965 - Trang 1416-1418 - 1970
Gary Darland1, Thomas D. Brock1, William A. Samsonoff2, S. F. Conti2
1Department of Microbiology, Indiana University, Bloomington
2University of Kentucky, Lexington

Tóm tắt

A thermophilic, acidophilic procaryote lacking a cell wall has been isolated from a coal refuse pile which had undergone self-heating. Electron micrographs, chemical assays for hexosamine, and the inability of vancomycin to inhibit growth confirm the lack of a cell wall. The apparent ability of the organism to reproduce by budding and the low guanine plus cytosine content of its DNA indicate a relation to the mycoplasmas. The temperature optimum of the organism is 59°C, and growth occurs over a range of 45° to 62°C. No growth occurs at 37°C or at 65°C. The optimum p H for growth is between 1 and 2, and growth occurs between p H 0.96 and 3.5 but does not occur at p H 0.35 and only poorly at p H 4.0. We propose to call this organism Thermoplasma acidophila . The existence of this organism extends considerably the range of habitats in which mycoplasma may occur.

Từ khóa


Tài liệu tham khảo

Edward D. G. The Mycoplasnzatales and the L-phase of Bacteria (1969).

Glauert, A. M., J. Roy. Microsc. Soc. 85: 449 (1966).

Kellenberger, E., J. Biophys. Biochem. Cytol. 4: 671 (1958).

Reynolds, E. S., J. Cell Biol. 17: 208 (1963).

Rondle, C. J. M., Biochem. J. 61: 586 (1955).

Strange, R. E., Nature 187: 38 (1960).

Matsuhashi, M., Proc. Nalt. Acad. Sci. U.S.A. 54: 587 (1975).

Somerson N. C. The Mycoplasnzatales and the L-phase of Bacteria (1969).

Laidlaw, P. P., Proc. Roy. Soc. London Ser. B 120: 292 (1936).

Cottew G. S. The Mycoplasnzatales and the L-phase of Bacteria (1969).

Razin, S., Annu. Rev. Microbiol. 23: 317 (1969).

Brock T. D. unpublished data.

Thông tin
Thông tin xuất bản

American Association for the Advancement of Science (AAAS)

Tập 170 Số 3965

1416-1418

Thông tin tác giả