form genus | an artificial taxonomic category established on the basis of morphological resemblance for organisms of obscure true relationships especially fossil forms |
bacteria bacterium | (microbiology) singleelled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission, important as pathogens and for biochemical properties, taxonomy is difficult, often considered to be plants |
Heliobacter genus Heliobacter | a genus of helical or curved or straight aerobic bacteria with rounded ends and multiple flagella, found in the gastric mucosa of primates (including humans) |
bacteria order | an order of bacteria |
bacteria family | a family of bacteria |
bacteria genus | a genus of bacteria |
bacteria species | a species of bacteria |
Aerobacter genus Aerobacter | aerobic bacteria widely distributed in nature |
Rhizobium genus Rhizobium | the type genus of Rhizobiaceae, usually occur in the root nodules of legumes, can fix atmospheric oxygen |
Agrobacterium genus Agrobacterium | small motile bacterial rods that can reduce nitrates and cause galls on plant stems |
eubacteria eubacterium true bacteria | a large group of bacteria having rigid cell walls, motile types have flagella |
genus Bacillus | type genus of the Bacillaceae, includes many saprophytes important in decay of organic matter and a number of parasites |
genus Clostridium | anaerobic or micro-aerophilic rod-shaped or spindle-shaped saprophytes, nearly cosmopolitan in soil, animal intestines, and dung |
genus Nostoc | type genus of the family Nostocaceae: freshwater blue-green algae |
genus Trichodesmium | a genus of blue-green algae |
phototrophic bacteria phototropic bacteria | green and purple bacteria, energy for growth is derived from sunlight, carbon is derived from carbon dioxide or organic carbon |
purple bacteria | free-living Gram-negative pink to purplish-brown bacteria containing bacteriochlorophyll |
Pseudomonas genus Pseudomonas | type genus of the family Pseudomonodaceae |
ring rot bacteria Pseudomonas solanacearum | causes brown rot in tomatoes and potatoes and tobacco etc |
Xanthomonas genus Xanthomonas | a genus of bacteria similar to Pseudomonas but producing a yellow pigment that is not soluble in water |
Nitrobacter genus Nitrobacter | rod-shaped soil bacteria |
nitric bacteria nitrobacteria | soil bacteria that convert nitrites to nitrates |
Nitrosomonas genus Nitrosomonas | ellipsoidal soil bacteria |
nitrosobacteria nitrous bacteria | soil bacteria that oxidize ammonia to nitrites |
genus Thiobacillus | a genus of bacteria |
thiobacteria sulphur bacteria sulfur bacteria | any bacterium of the genus Thiobacillus |
genus Spirillum | a genus of bacteria |
genus Vibrio | a genus of bacteria |
Bacteroides genus Bacteroides | type genus of Bacteroidaceae, genus of Gram-negative rodlike anaerobic bacteria producing no endospores and no pigment and living in the gut of man and animals |
Calymmatobacterium genus Calymmatobacterium | a genus of bacterial rods containing only the one species that causes granuloma inguinale |
Francisella genus Francisella | a genus of Gram-negative aerobic bacteria that occur as pathogens and parasite in many animals (including humans) |
genus Corynebacterium | the type genus of the family Corynebacteriaceae which is widely distributed in nature, the best known are parasites and pathogens of humans and domestic animals |
genus Listeria | a genus of aerobic motile bacteria of the family Corynebacteriaceae containing small Gram-positive rods |
enteric bacteria enterobacteria enterics entric | rod-shaped Gram-negative bacteria, most occur normally or pathogenically in intestines of humans and other animals |
genus Escherichia | a genus of bacteria |
genus Klebsiella | a genus of bacteria |
genus Salmonella | a genus of bacteria |
genus Serratia Serratia | a genus of motile peritrichous bacteria that contain small Gram-negative rod |
genus Shigella | a genus of bacteria |
genus Erwinia | a genus of bacteria |
endospore-forming bacteria | a group of true bacteria |
genus Rickettsia | can cause typhus and Rocky Mountain spotted fever in humans |
genus Chlamydia | type genus of the family Chlamydiaceae: diseaseausing parasites |
genus Mycoplasma | type and sole genus of the family Mycoplasmataceae |
genus Actinomyces | type genus of the family Actinomycetaceae |
genus Streptomyces | type genus of the family Streptomycetaceae |
potato scab bacteria Streptomyces scabies | cause of a potato disease characterized by brownish corky tissue |
genus Mycobacterium | nonmotile Gram-positive aerobic bacteria |
penicillinesistant bacteria | bacteria that are unaffected by penicillin |
pus-forming bacteria | bacteria that produce pus |