Methanobacterium aarhusense: Difference between revisions

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A Microbial Biorealm page on the genus <I> Methanobacterium aarhusense <I/>
{{Curated}}
{{Biorealm Genus}}


[[Image: methanobacterium_aarhusense.jpg|thumb|400px|right| "Methanobacterium" sp. From: [https://microbewiki.kenyon.edu/images/f/f0/Methanobacterium_aarhusense.jpg. IJSEM]]]


Contents
==Classification==
1 Classification
1.1 Higher order taxa
1.2 Species
2 Description and significance
3 Genome structure
4 Cell and colony structure
5 Metabolism
6 Ecology
7 References


Classification
===Higher order taxa===
Domain: Archaea
Kingdom: Archaea
Phylum: Euryarchaeota
Class: Methanobacteria
Order: Methanobacteriales
Family: Methanobacteriaceae
Genus: Methanobacterium
Species: "Methanobacterium aarhusense"


Higher order taxa
===Species===
''Methanobacterium aarhusense''
{|
| height="10" bgcolor="#FFDF95" |
'''NCBI: [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=2&lvl=3&lin=f&keep=1&srchmode=1&unlock Taxonomy]'''
|}


Archaea, Euryarchaeota, Methanobacteria, Methanobacteriales, Methanobacteriaceae
==Description and significance==
Species


NCBI: TaxonomyGenome: Methanobacterium aarhusense
M. aarhusense is mesophilic, moderately halophilic, non-motile, meaning that it is a very picky microbe and  prefers temperatures above 30℃. The optimum growth temperature is 45℃. It 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. 


Description and Significance
==Genome structure==


M. aarhusense is mesophilic, moderately halophilic, non-motile, meaning that it is a very picky microbe and prefers temperatures above 30℃. The optimum growth temperature is 45℃. It 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.
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).  


Genome Structure
==Cell structure and metabolism==
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. It is a gram positive meaning that it has a thick peptidoglycan layer. M. aarhusense does not possess any pili or flagella, keep it non-motile. A large sample has been sequenced and contains 1333 base pairs.
It is 5-18 μm long and 0-7 μm wide, filamentous. It is a gram positive meaning that it has a thick peptidoglycan layer. M. aarhusense does not possess any pili or flagella, keep it non-motile. A large sample has been sequenced and contains 1333 base pairs.


Metabolism
M. aarhusense is a hydrogenotrophic methanogen, 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.  
M. aarhusense is a hydrogenotrophic methanogen, 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
==Ecology==


M. aarhusense is a chemoautotroph, meaning that it produces complex organic compounds from simple substances. Optimal growth temperature is 45℃. Grows at pH 7-5 and 8. Can live in a CaCl concentration of 100 and 900 mM. Isolated from marine sediment in Aarhus Bay, Denmark. An artificial marine medium was created and it consists of three different solutions. Solution A consists of NaCl, 20; MgCl2.6H2O, 3; KCl, 0·7; NH4Cl, 0·2; KH2PO4, 0·2; CaCl2.2H2O, 0·2. Solution B consists of NaHCO3, 2·5 g in 30 ml demineralized water. Lastly, solution C consists of: 1·5 ml l−1 of 0·04 g Na2S.9H2O ml−1 demineralized water. On the agar, the colonies were circular and grayish, with white surrounding it.  
M. aarhusense is a chemoautotroph, meaning that it produces complex organic compounds from simple substances. Optimal growth temperature is 45℃. Grows at pH 7-5 and 8. Can live in a CaCl concentration of 100 and 900 mM. Isolated from marine sediment in Aarhus Bay, Denmark. An artificial marine medium was created and it consists of three different solutions. Solution A consists of NaCl, 20; MgCl2.6H2O, 3; KCl, 0·7; NH4Cl, 0·2; KH2PO4, 0·2; CaCl2.2H2O, 0·2. Solution B consists of NaHCO3, 2·5 g in 30 ml demineralized water. Lastly, solution C consists of: 1·5 ml l−1 of 0·04 g Na2S.9H2O ml−1 demineralized water. On the agar, the colonies were circular and grayish, with white surrounding it.  


References:
==References==


Boone, D. R. (2001). Genus I. Methanobacterium. In Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1, pp. 215–218. Edited by D. R. Boone & R. W. Castenholz. New York: Springer-Verlag.
Boone, D. R. (2001). Genus I. Methanobacterium. In Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1, pp. 215–218. Edited by D. R. Boone & R. W. Castenholz. New York: Springer-Verlag.


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>
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).
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>
<http://ijs.sgmjournals.org/content/54/3/759/F2.expansion>
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>.
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>.
 




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

Latest revision as of 16:57, 3 May 2013

This is a curated page. Report corrections to Microbewiki.

A Microbial Biorealm page on the genus Methanobacterium aarhusense

"Methanobacterium" sp. From: IJSEM

Classification

Higher order taxa

Domain: Archaea Kingdom: Archaea Phylum: Euryarchaeota Class: Methanobacteria Order: Methanobacteriales Family: Methanobacteriaceae Genus: Methanobacterium Species: "Methanobacterium aarhusense"

Species

Methanobacterium aarhusense

NCBI: Taxonomy

Description and significance

M. aarhusense is mesophilic, moderately halophilic, non-motile, meaning that it is a very picky microbe and prefers temperatures above 30℃. The optimum growth temperature is 45℃. It 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 structure and metabolism

It is 5-18 μm long and 0-7 μm wide, filamentous. It is a gram positive meaning that it has a thick peptidoglycan layer. M. aarhusense does not possess any pili or flagella, keep it non-motile. A large sample has been sequenced and contains 1333 base pairs.

M. aarhusense is a hydrogenotrophic methanogen, 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 a chemoautotroph, meaning that it produces complex organic compounds from simple substances. Optimal growth temperature is 45℃. Grows at pH 7-5 and 8. Can live in a CaCl concentration of 100 and 900 mM. Isolated from marine sediment in Aarhus Bay, Denmark. An artificial marine medium was created and it consists of three different solutions. Solution A consists of NaCl, 20; MgCl2.6H2O, 3; KCl, 0·7; NH4Cl, 0·2; KH2PO4, 0·2; CaCl2.2H2O, 0·2. Solution B consists of NaHCO3, 2·5 g in 30 ml demineralized water. Lastly, solution C consists of: 1·5 ml l−1 of 0·04 g Na2S.9H2O ml−1 demineralized water. On the agar, the colonies were circular and grayish, with white surrounding it.

References

Boone, D. R. (2001). Genus I. Methanobacterium. In Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1, pp. 215–218. Edited by D. R. Boone & R. W. Castenholz. New York: Springer-Verlag.

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>

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>.


Edited by student of Lisa Moore

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