Figure 4.

Repartition of superoxide reductase (SOR) and superoxide dismutase (SOD) genes regarding the 16S rRNA gene distance tree of all Crenarchaeota described in SORGOdb. All of the sequences were retrieved from SILVA [60] when available or GenBank ( webcite). The Thermoproteales are highlighted in red, the Sulfolobales in blue and the Desulfurococcales in green. Organisms having at least one SOR, or one SOD or none of both (any SOD and any SOR) are respectively represented in red, blue and dark.

Lucchetti-Miganeh et al. BMC Microbiology 2011 11:105   doi:10.1186/1471-2180-11-105
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