Table 1.
List of most notable genera (containing cultivable species and showing > 1% abundance) detected in the aerobic versus the microaerobic enrichments and their predictable role in petroleum hydrocarbon degradation
| Genus | Abundance of 16S rDNA sequence reads (%) | Documented petroleum hydrocarbon degradation ability | References | |
|---|---|---|---|---|
| Aerobic enrichment | Microaerobic enrichment | |||
| Polaromonas | 14 | < 0.1 | Benzene, toluene, naphthalene, medium-chain alkanes | Sun et al. (2010), Xie et al. 2011), Jeon et al. (2004) and Scheps et al. (2011) |
| Pseudomonas | 10.5 | 11 | Alkanes, monoaromatic hydrocarbons, PAHs | Whyte et al. 1997) and van Beilen and Funhoff (2007) |
| Acinetobacter | 1.8 | 66.3 | Monoaromatic hydrocarbons, long-chain alkanes | Lal and Khanna (1996), Di Cello et al. 1997) and Tani et al. (2001) |
| Acidovorax | 6.7 | 11 | Benzene, phenanthrene, chlorobenzene | Nestler et al. (2007), Aburto and Peimbert (2011) and Singleton et al. (2018) |
| Rhodococcus | 5.5 | < 0.5 | Alkanes, aromatic and heterocyclic compounds, PAHs | Larkin et al. (2005) |
| Janthinobacterium | 4 | ND | NR | – |
| Chryseobacterium | 2.5 | ND | Lubricating oil | Saimmai et al. (2012) |
| Sphingobium | 2.3 | ND | Monoaromatic hydrocarbons, straight-chain alkanes, PAHs | Maeda et al. (2015), Chaudhary et al. (2017) and Révész et al. (2018) |
| Variovorax | < 0.1 | 1.9 | Benzene, phenanthrene | Posman et al. 2017) and Singleton et al. (2018) |
| Azospirillum | 1.6 | ND | PAHs | Gałązka et al. (2012) |
| Simplicispira | < 0.1 | 1.5 | NR | – |
| Ottowia | 1.4 | ND | Phenol | Felföldi et al. (2010) |
| Flavobacterium | 1.3 | < 0.1 | Crude oil | Rahman et al. (2002) |
| Massilia | 1.1 | < 0.1 | NR | – |
ND not detected, NR not reported