Bacillus xerothermodurans sp. nov., a Species Forming Endospores Extremely Resistant to Dry Heat
Open Access
- 1 April 1977
- journal article
- research article
- Published by Microbiology Society in International Journal of Systematic and Evolutionary Microbiology
- Vol. 27 (2) , 157-160
- https://doi.org/10.1099/00207713-27-2-157
Abstract
An unusual mesophilic bacillus was isolated from soil, and a cleaned spore preparation of this organism showed extreme resistance to dry heat (D125°C = 139 h, D130°C = 54 h, D135°C = 24 h, D140°C = 13 h, D145°C = 8 h, D145°C = 2.5 h; where D = time at temperature effecting 90% reduction in viable count); and relative sensitivity to moist heat (D80°C = 61 min). The biochemical tests, exterior and interior spore morphology, and growth characteristics of this organism do not fit those of any of the presently described species of bacteria. Consequently, we regard this organism as belonging to a new species, for which we propose the name Bacillus xerothermodurans. The type strain of this species has been deposited in the American Type Culture Collection as ATCC 27380.This publication has 0 references indexed in Scilit: