b-PROTOBACTERIA

several groups of aerobic/facultative bacteria often highly versatile in degradation capacities, contain chemolithotrophic genera ( Nitrosomonas) and some phototrophs (Rhodocyclus and Rubrivivax). nitrogen fix., environ., waste water, soil. Path. are Neisseriaceae (gonorrhea, meningoencephalitis),  Burkholderia.

                      THIOBACILLUS

Domain     Bacteria

Phylum     Proteobacteria

Class        b-proteobacteria

Order       Hydrogenophilales

Family      Hydrogenophilaceae

Genus     THIOBACILLUS 

chemoautotrophs, S cycle can  obtain e. by redoux S, H2S, into SO4(2-)

                          SPIRILLUM 

Domain   Bacteria

Phylum   Proteobacteria

Class      b-proteobacteria

Order     Nitrosomonadales

Family    Spirillaceae

Genus    SPIRILLUM

S. pleomorphum, S. volutans, genus of g- aerobic, large chemotrophic spirilla,  elongated  tufts of flagella at both poles, usually living in stagnant water rich in organic matter.some pathogenic

                         SPIRILLUM JPEG

                        SPHAEROTILUS

Domain    Bacteria
Phylum     Proteobacteria
Class       b-proteobacteria
Order       Burkholderiales                  *

Family      Comamonadaceae              *Tortora

Genus       Sphaerotilus

S. natans  G-  p-flaggela  filamentous tubular sheath, found in flowing water , sewage,  clogs pipes (bulking), not path

                         BURKHOLDERIA

Domain    Bacteria
Phylum    Proteobacteria
Class       b-Proteobacteria
Order       Burkholderiales
Family     Burkholderiaceae
Genus     Burkholderia

ubiquitous gram-negative, motile, obligately aerobic rod-shaped bacteria including both animal/human plant pathogens, some environmentally-important species; B. mallei glanders D.,  Due to @R, high mortality rate B. mallei and B. pseudomallei are considered warfare agents, targeting livestock and humans.

                           BORDETELLA

Domain   Bacteria
Phylum   Proteobacteria
Class      b-Proteobacteria
Order     Burkholderiales
Family    Alcaligenaceae
Genus    Bordetella

small G- coccobacilli, obligate aerobes (exception  B. petrii),  3 pathogens:  B. pertussis pertussis, B. parapertussis(sheep), B. bronchiseptica(motile; several diseases in other mammals,  birds(B. hinzii, B. avium))

                           NEISSERIA 

Domain    Bacteria
Phylum    Proteobacteria
Class       b-Proteobacteria
Order      Neisseriales
Family     Neisseriaceae
Genus     Neisseria

G- diplococci  N. gonorrhoeae (gonococcus) gonorrhoea, N. meningitidis (meningococcus), one of the most common causes of bacterial meningitis causative agent of meningococcal septicaemia; nonpathogenic species N. cinerea/elongata/flavescens/lactamica/

mucosa/polysaccharea/sicca/subflava

                         ZOOGLOEA

Domain   Bacteria 

Phylum   Proteobacteria
Class     b-proteobacteria
Order     Rhodocyclales
Family    Rhodocyclaceae
Genus    Zoogloea

literally translates to mean "animal glue," important aerobic  sewage-treatment processes, form fluffy slimy masses essential  to  sewage systems

Zoogloea ramigera  aerobic G- bacillus nonsporeforming, polarly flagellated, found primarily in organically enriched aqueous environments