"uncultured methanogenic archaeon Rice Cluster I"^^ . "PMID:16857943"^^ . . "GC_ID:11"^^ . "Methanocella arvoryzae str. MRE50"^^ . "Methanocella arvoryzae MRE50"^^ . "uncultured methanogenic archaeon RC-I"^^ . . "Methanocella arvoryzae strain MRE50"^^ . "ncbi_taxonomy"^^ .