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Clostridium uliginosum sp. nov., a novel acid-tolerant, anaerobic bacterium with connecting filaments

Title data

Matthies, Carola ; Kuhner, Carla H. ; Acker, Georg ; Drake, Harold L.:
Clostridium uliginosum sp. nov., a novel acid-tolerant, anaerobic bacterium with connecting filaments.
In: International Journal of Systematic and Evolutionary Microbiology. Vol. 51 (2001) Issue 3 . - pp. 1119-1125.
ISSN 1466-5034
DOI: https://doi.org/10.1099/00207713-51-3-1119

Abstract in another language

An anaerobic, acid-tolerant bacterium, CK55T, was isolated from an acidic forest bog. Cells of CK55T stained Gram-negative but did not have an outer membrane. Cells were spore-forming, motile rods with peritrichous flagella, formed chains or aggregates, and were linked by connecting filaments that were composed of a core and outer sheath. Cellobiose, glucose, xylose, mannose, mannitol, sucrose, and peptone supported growth. Arabinose, lactose, raffinose, H2/CO2, CO/CO2, vanillate, casamino acids, and various purines and pyrimidines did not support growth. Growth on carbohydrates yielded acetate, butyrate, lactate, formate, and H2 as end products. Growth was observed at (i) pH 4.0-9.0 with an optimum at pH 6.5 and (ii) 10-30 °C with an optimum at 20-25 °C. At 20 °C, doubling times were 4 and 6 hours at pH 6.5 and 4.0, respectively. Hydrogenase activity in cell-free extracts was 12 U per mg protein. CK55T did not (i) contain detectable levels of CO, formate, and lactate dehydrogenases or cytochromes, (ii) dissimilate nitrate or sulfate, and (iii) produce methane. Thus, CK55T was characterized as a nonacetogenic, fermentative chemoorganotroph. The G + C content of CK55T was 28.0 mol%. CK55T was phylogenetically most closely related to Clostridium botulinum (types B, E, and F), Clostridium acetobutylicum, and other saccharolytic clostridia; the 16S rRNA gene sequence similarity values to the nearest relatives of CK55T approximated 97%. Based on the morphological, physiological, and phylogenetic properties of CK55T, it is proposed that CK55T be termed Clostridium uliginosum (DSM 12992T, ATCC BAA-53T) (T = type strain).

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER7499
Institutions of the University: Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Ecological Microbiology
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 24 Sep 2015 09:38
Last Modified: 24 Sep 2015 09:38
URI: https://eref.uni-bayreuth.de/id/eprint/19633