PROJECT INFORMATION
GOLD Project ID
Gp0316965  
Project Name
Methanonatronarchaeum thermophilum AMET1  
Other Names
  
Legacy GOLD ID
  
NCBI BioProject Name Methanonatronarchaeum thermophilum AMET1
NCBI BioProject ID 356895
NCBI BioProject Accession PRJNA356895
NCBI Locus Tag
AMET1  
NCBI BioSample Accession SAMN05770049
PI
Added By JGI automated process on 2018-05-24
Last Modified By Supratim Mukherjee on 2019-01-24
Project Comments
  
Project Status
Permanent Draft  
Project Relevance Environmental
Sequencing Center National Center for Biotechnology Information
Collaborating Institute
  
Funding Agency
  
Project Description
Methanogenic archaea are major players in the global carbon cycle. The phylum Euryarchaeota includes diverse groups of methanogens that are interspersed with non-methanogenic branches in the evolutionary tree. So far methanogens inhabiting hypersaline environments have been identified only within the order Methanosarcinales. These halophilic methanogens employ the bacterial type of osmoprotection based on the "salt-out" strategy. We report the discovery of a novel deep lineage of extremophilic methanogens that inhabit hypersaline lakes and can be considered as "methanogenic haloarchaea", and present a comprehensive analysis of two nearly complete genomes from this group. Within the phylum Euryarchaeota, these isolates form a novel, class-level lineage that is most closely related to the class Halobacteria and for which we propose the name "Methanonatronarchaea". Their extreme halophily and the absence of organic osmolytes indicate that "Methanonatronarchaea" employ the "salt-in" osmotic strategy. Their growth requires FeS or sediments from hypersaline lakes. The novel methanogens belong to heterotrophic methyl reducers that utilize C1-methylated compounds as electron acceptors and formate or hydrogen as electron donors. The genomes contain an incomplete (and apparently inactivated) set of genes encoding the upper branch of methyl group oxidation to CO2, the membrane-bound heterosulfide reductase and cytochromes. The presence of these genes clearly differentiates this novel group from all known methyl reducing methanogens. The discovery of extremely halophilic, methyl-reducing methanogens related to haloarchaea sheds new light on the origin of methanogenesis and shows that the ability of methanogens to live in salt-saturating conditions is not limited to the classical methylotrophic pathway.  
Is JGI Project
No  
Project Information Visibility Public
PROJECT TYPE
Specimen Organism
Nucleic Acid DNA
Sequencing Strategy
Whole Genome Sequencing  
EXTERNAL PROJECT LINKS
Project Information
  
Database
  
Genome Publications
  
Other Publications
  
SRA Experiment
  
PROJECT COMPOSITION
Study Methanonatronarchaeum thermophilum strain:AMET1
Organism Methanonatronarchaeum thermophilum AMET1
Analysis Projects Methanonatronarchaeum thermophilum AMET1
Number of Analysis Projects (AP) 1
Number of Derived Analyis Projects (DAP)
0  
SEQUENCING INFORMATION
Sequencing Status Complete
Sequencing Quality (MIGS-31)
Finishing Goal
  
Contamination Screening Input
  
DNA Amplification Method
  
Sequencing Comments
  
DNA Amplification Kit
  
Sequencing Technology (MIGS-29) Illumina HiSeq
Library Method (MIGS-28)
  
Library Layout
  
Library Screening Method
  
Number Of Reads
  
Read Size
  
Vector
  
GC Percent
  
Chromosome Count
  
Plasmid Count
  
ORGANISM NAME
GOLD Organism ID Go0452544
Organism Name
Methanonatronarchaeum thermophilum AMET1  
Other names (alias, synonyms, short names, common names)
  
Organism Domain
ARCHAEAL  
Phylogeny
EURYARCHAEOTA  
Genus
Methanonatronarchaeum  
Genus Synonyms
  
Species
Methanonatronarchaeum thermophilum  
Subspecies
  
Species Synonyms
  
Strain
AMET1  
Strain Synonyms
  
Serovar/Cultivar
  
Culture Collection ID
  
Type Strain
  
Exemplar DOI
10.1601/ex.31838  
Exemplar Name
Methanonatronarchaeum thermophilum  
Taxon DOI
10.1601/tx.31838  
Biosafety Level
  
Organism Comments
  
Cultured
Yes  
Culture Type
Isolate  
Organism Type
Natural  
Uncultured Type
  
Commercial Strain
  
Commercial Strain Comments
  
ORGANISM TAXONOMY
NCBI Taxonomy ID 1927129
NCBI Superkingdom
Archaea  
NCBI Kingdom
  
NCBI Phylum
Euryarchaeota  
NCBI Class
Methanonatronarchaeia  
NCBI Order
Methanonatronarchaeales  
NCBI Family
Methanonatronarchaeaceae  
NCBI Genus
Methanonatronarchaeum  
NCBI Species
Methanonatronarchaeum thermophilum  
ISOLATION CLASSIFICATION
Ecosystem
  
Ecosystem Category
  
Ecosystem Type
  
Ecosystem Subtype
  
Specific Ecosystem
  
ORGANISM EXTERNAL REFERENCES
Strain Info ID
Genbank 16S ID
GENERAL PROPERTIES
Oxygen Requirement
  
Cell Shape
  
Motility
  
Sporulation
  
Temperature Range
  
Salinity
  
pH
  
Cell Diameter
  
Cell Length
  
Color
  
Gram Staining
  
Biotic Relationships
  
Symbiotic Physical Interaction
  
Symbiotic Relationship
  
Symbiont Name
  
Symbiont Taxon ID
  
Cell Arrangements
  
Diseases
  
Known Habitats
  
Metabolisms
  
Phenotypes
  
Energy Sources
  

 

 

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