| MMDBm0000218 | Methanobrevibacter smithii ATCC 35061 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001813 | Metallosphaera sedula DSM 5348 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001810 | Mesorhizobium loti MAFF303099 | Bacteria | Proteobacteria | Human Feces | Not Available | RHEA |
| MMDBm0001802 | Marinomonas sp. MWYL1 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001801 | Marinobacter aquaeolei VT8 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001284 | Mannheimia succiniciproducens MBEL55E | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001796 | Magnetospirillum magneticum AMB-1 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001992 | Magnetococcus sp. MC-1 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001795 | Macrococcus caseolyticus JCSC5402 | Bacteria | Firmicutes | Not Available | Not Available | RHEA |
| MMDBm0001794 | Lysinibacillus sphaericus C3-41 | Bacteria | Firmicutes | Human Feces | Not Available | RHEA |
| MMDBm0001787 | Listeria welshimeri serovar 6b str. SLCC5334 | Bacteria | Firmicutes | Not Available | Not Available | RHEA |
| MMDBm0001784 | Listeria monocytogenes serotype 4b str. F2365 | Bacteria | Firmicutes | Human | Not Available | RHEA |
| MMDBm0001789 | Listeria monocytogenes serotype 4b str. CLIP 80459 | Bacteria | Firmicutes | Human | Not Available | RHEA |
| MMDBm0001788 | Listeria monocytogenes HCC23 | Bacteria | Firmicutes | Catfish | Not Available | RHEA |
| MMDBm0001785 | Listeria monocytogenes EGD-e | Bacteria | Firmicutes | Not Available | Not Available | RHEA |
| MMDBm0001786 | Listeria innocua Clip11262 | Bacteria | Firmicutes | Not Available | Not Available | RHEA |
| MMDBm0001780 | Leuconostoc mesenteroides subsp. mesenteroides ATCC 8293 | Bacteria | Firmicutes | Not Available | Not Available | RHEA |
| MMDBm0793169 | Leuconostoc mesenteroides subsp. cremoris | Bacteria | Firmicutes | Not Available | Not Available | RHEA |
| MMDBm0001778 | Leptothrix cholodnii SP-6 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001974 | Leptospira interrogans serovar Lai str. 56601 | Bacteria | Spirochaetes | Not Available | Not Available | RHEA |
| MMDBm0001982 | Leptospira interrogans serovar Copenhageni str. Fiocruz L1-130 | Bacteria | Spirochaetes | Not Available | Not Available | RHEA |
| MMDBm0001776 | Leptospira borgpetersenii serovar Hardjo-bovis L550 | Bacteria | Spirochaetes | Human | Not Available | RHEA |
| MMDBm0001777 | Leptospira borgpetersenii serovar Hardjo-bovis JB197 | Bacteria | Spirochaetes | Human | Not Available | RHEA |
| MMDBm0001999 | Leptospira biflexa serovar Patoc strain 'Patoc 1 (Paris)' | Bacteria | Spirochaetes | Not Available | Not Available | RHEA |
| MMDBm0002002 | Leptospira biflexa serovar Patoc strain 'Patoc 1 (Ames)' | Bacteria | Spirochaetes | Not Available | Not Available | RHEA |
