ISSN:
1432-072X
Keywords:
Chromatiaceae
;
Thiocapsa
;
Okenone
;
Hypersaline environment
;
Halophilic bacteria
;
Microbial mats
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract A new phototrophic sulfur bacterium has been isolated from a red layer in a laminated mat occurring underneath a gypsum crust in the mediterranean salterns of Salin-de-Giraud (Camargue, France). Single cells were coccus-shaped, non motile, without gas vacuoles and contained sulfur globules. Bacteriochlorophyll a and okenone were present as major photosynthetic pigments. These properties and the G+C content of DNA (65.9–66.6 mol% G+C) are typical characteristics of the genus Thiocapsa. However, the new isolate differs from known species in the genus, particularly in NaCl requirement (optimum, 7% NaCl; range, 3–20% NaCl) and some physiological characteristics. Therefore, a new species is proposed, Thiocapsa halophila, sp. nov.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00248613
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