bacteria genus vs genus Nitrobacter

Other hyponyms of bacteria genus include genus Heliobacter, Heliobacter, Aerobacter, genus Aerobacter, genus Rhizobium, Rhizobium, Agrobacterium, genus Agrobacterium, genus Bacillus, genus Clostridium, genus Nostoc, genus Trichodesmium, genus Pseudomonas, Pseudomonas, genus Xanthomonas, Xanthomonas, family Nitrobacteriaceae, Nitrobacteriaceae, Nitrobacter, genus Nitrosomonas, Nitrosomonas, genus Thiobacillus, genus Spirillum, genus Vibrio, Bacteroides, genus Bacteroides, genus Corynebacterium, genus Listeria, genus Escherichia, genus Klebsiella, genus Salmonella, genus Serratia, Serratia, genus Shigella, genus Erwinia, genus Rickettsia, genus Chlamydia, genus Mycoplasma, genus Actinomyces, genus Streptomyces, genus Mycobacterium, genus Polyangium, Polyangium, genus Micrococcus, Micrococcus, genus Staphylococcus, genus Lactobacillus, genus Diplococcus, genus Streptococcus, genus Spirochaeta, Spirochaeta, genus Treponema, genus Borrelia, genus Leptospira.