"Methanosarcina barkerii"^^ . "ncbi_taxonomy"^^ . . . . "NCBITaxon:29289"^^ . "Methanobacterium barkeri"^^ . "Sarcina barkeri"^^ . "Methanosarcina barkeri"^^ . "PMID:1537550"^^ . "GC_ID:11"^^ .