Table 1. Diversity of Archaea and Bacteria retrieved in the core by 16S rRNA gene surveys.
| Clone | % in library | Closest related microorganism (% of similarity by blast) | Lineage | Main metabolic traits of the related microorganisms |
|---|---|---|---|---|
| Members of the Bacteria domain - Proteobacteria | ||||
| MIG-B2 | 50.0 | Ochrobactrum sp. (99) | Rhizobiales; Brucellaceae | Aerobic, mesophilic, possible degradation of crude oil by some Ochrobactrum spp. |
| MIG-B13 | 7.6 | Halomonas venusta (99) | Oceanospirillales; Halomonadaceae | Facultative anaerobic, halophilic, marine bacterium; possible degradation of crude oil by some Halomonas spp. |
| MIG-B23 | 4.3 | Halomonas meridiana (99) Halomonas aquamarina (99) | Oceanospirillales; Halomonadaceae | Facultative anaerobic, halophilic, marine bacterium; possible degradation of crude oil by some Halomonas spp. |
| MIG-B19 | 4.3 | Burkholderia ferrariae (99) Burkholderia silvatlantica (99) | Burkholderiales; Burkholderiaceae | Aerobic, mesophilic; possible degradation of alkanes and aromatic hydrocarbons by some Burkholderia spp. |
| MIG-B18 | 2.2 | Rhizobium loti (99) | Rhizobiales; Phyllobacteriaceae | Aerobic and mesophilic bacterium |
| MIG-B1 | 1.1 | Halomonas phoceae (97) Halomonas xinjiangensis (97) | Oceanospirillales; Halomonadaceae | Facultative anaerobic, halophilic, marine bacterium; possible degradation of crude oil by some Halomonas spp. |
| MIG-B9 | 1.1 | Chromohalobacter salexigens (99) | Oceanospirillales; Halomonadaceae | Aerobic, moderate halophilic, marine bacterium |
| Members of the Bacteria domain – Firmicutes, Actinobacteria, and Thermotogae | ||||
| MIG-B16 | 19.6 | Halolactibacillus halophilus (98) Halolactibacillus miuriensis (98) | Firmicute; Bacillales; Bacillaceae | Facultative anaerobic, halophilic and alkaliphilic marine lactic acid bacterium |
| MIG-B8 | 4.3 | Halanaerobium fermentans (99) | Firmicute; Halanaerobiales; Halanaerobiaceae | Anaerobic, halophilic fermentative bacterium |
| MIG-B25 | 2.2 | Orenia marismortui (95) | Firmicute; Halanaerobiales; Halobacteroidaceae | Anaerobic, halophilic fermentative bacterium |
| MIG-B42 | 1.1 | Orenia marismortui (95) | Firmicute; Halanaerobiales; Halobacteroidaceae | Anaerobic, halophilic fermentative bacterium |
| MIG-B15 | 1.1 | Microbacterium paraoxydans (99) | Actinobacteria Actinomycetales; Microbacteriaceae | Aerobic, mesophilic; possible degradation of crude oil by some Microbacterium spp. |
| MIG-B3 | 1.1 | Geotoga aestuarianus (99) | Thermotogales; Thermotogaceae | Anaerobic, thermophilic fermentative bacterium |
| Members of the Archaea domain - Euryarchaeota | ||||
| MIG-ARCH1 | 33.3 | Halococcus hamelinensis (99) | Halobacteriales | Aerobic, extreme halophile |
| MIG-ARCH6 | 30.6 | Haloplanus natans (98) | Halobacteriales | Aerobic, extreme halophile |
| MIG- ARCH2 | 16.7 | Halorhabdus tiamatea (97) Halorhabdus utahensis (97) | Halobacteriales | Facultative anaerobic (microaerobic) extreme halophile |
| MIG-ARCH27 | 16.7 | Halarchaeum acidiphilum (97) | Halobacteriales | Aerobic, extreme halophile |
| MIG-ARCH10 | 2.8 | Thermococcaceae (77) | Thermococcales | Anaerobic hyperthermophile |
Retrieved environmental 16S rRNA gene sequences are available under Genbank accession numbers JQ690672 to JQ690688.