Methanobacterium aarhusense

Methanobacterium aarhusense

Classification

Higher order taxa

Archaea, Euryarchaeota, Methanobacteria, Methanobacteriales, Methanobacteriaceae Species

NCBI: TaxonomyGenome: Methanobacterium aarhusense

Description and Significance

M. aarhusense is mesophilic, moderately halophilic, non-motile. Optimum growth temperature is 45℃. Grows well at pH of 7-5 and 8, however the optimum pH is unknown. Grows well in NaCl concentration range of 100 and 900mM.

Genome Structure

DNA G+C content is 34-39 mol %. The strain forms a distinct line of descent within this genus, with Methanobacterium oryzae (95·9 % sequence identity) and Methanobacterium bryantii (95.7% sequence identity).

Cell and colony structure

It is 5-18 μm long and 0-7 μm wide, filamentous.

Metabolism

M. aarhusense is a hydrogenotrophic methane, meaning that it converts hydrogen to energy as a way of metabolism and produces methane. No growth or methane production was observed at 1 M NaCl. At 50 mM NaCl, growth and methane production were reduced.

Ecology

M. aarhusense is an autotroph. Optimal growth temperature is 45℃. Grows at pH 7-5 and 8. Can live in an CaCl concentration of 100 and 900 mM. Isolated from marine sediment in Aarhus Bay, Denmark.

References:

Shlimon, Adris Georgis, Michael W. Friedrich, Helge Niemann, Niels Birger Ramsing, Kai Finster. "Methanobacterium aarhusense sp. nov., a novel methanogen isolated from a marine sediment (Aarhus Bay, Denmark)." International Journal Of Systematic and Evolutionary Microbiology 30 January 2004. 9 February 2013 <http://ijs.sgmjournals.org/content/54/3/759.abstract>.

Goldman AD, Leigh JA, Samudrala R. Comprehensive computational analysis of Hmd enzymes and paralogs in methanogenic Archaea. <http://openi.nlm.nih.gov/detailedresult.php? img=2739858_1471-2148-9-199-1&req=4>

IJSEM May 2004 vol. 54 no. 3 759-763. Methanobacterium aarhusense sp. nov., a novel methanogen isolated from a marine sediment (Aarhus Bay, Denmark). <http://ijs.sgmjournals.org/content/54/3/759/F2.expansion>

Edited by Stephen Sweatt of Dr. Lisa R. Moore, University of Southern Maine, Department of Biological Sciences, http://www.usm.maine.edu/bio Category: Uncurated Pages