title: [Identification of methane producing bacteria, the 3d group of organisms, and concepts of cell evolution].
mesh_terms: D001419:Bacteria / Q000235:genetics* / Q000378:metabolism; D001483:Base Sequence; D005075:Biological Evolution; D008697:Methane / Q000096:biosynthesis*; D012329:RNA, Bacterial / Q000235:genetics; D012335:RNA, Ribosomal / Q000235:genetics
chemical_list: D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D008697:Methane