Table 3. Presence of gene clusters of NarGHJI and NasBC in Anoxybacillus, Geobacillus, and Bacillus.

Genus	Species	Gene cluster
		NarGHJI	NasBC
Anoxybacillus	Anoxybacillus sp. SK3-4	−	−
	Anoxybacillus sp. DT3-1	−	−
	Anoxybacillus flavithermus WK-1	−	−
	Anoxybacillus flavithermus TNO	+	−
	Anoxybacillus kamchatkensis G10	+	−
Geobacillus	Geobacillus kaustophilus	−, NarI is present	+
	Geobacillus thermodenitrificans	−, NarI is present	+
	Geobacillus thermoglucosidasius	+	−
	Geobacillus thermoleovorans	+	+
	Geobacillus sp. WCH70	−, NarG and NarI is present	−
	Geobacillus sp. Y412MC61	+	+
	Geobacillus sp. Y412MC52	+	+
	Geobacillus sp. C56 T-3	+	+
	Geobacillus sp. Y4.1MC1	+	−
	Geobacillus sp. GHH01	+	+
Bacillus	Bacillus subtilis 168	+	+
	Bacillus amyloliquefaciens subsp. plantarum YAU B9601-Y2	+	+
	Bacillus atrophaeus	+	+
	Bacillus halodurans	−	+
	Bacillus anthracis Ames	+	−, NasB is present
	Bacillus cereus ATCC 14579	+	−, NasB is present
	Bacillus clausii	+	+
	Bacillus pseudofirmus	−	+
	Bacillus megaterium QM B1551	−	+
	Bacillus cellulosilyticus	−	+

+ present;

− absent.