Phototrophic Bacteria

Phototrophic Bacteria

1. Oxygenic bacteria

   • p_Cyanobacteria (Chlorophyll)

2. Anoxygenic bacteria

   • Green sulfur bacteria (GSB) (Bchl-c, Bchl-d, Bchl-e, carotenoid)
     • Chlorobiaceae (within p_Chlorobi)
       • contain Chlorosome (efficient light-harvesting)
       • greatest tolerance of H2S
       • at the deepest depths
   • F_Heliobacteria (within p_Firmicutes) (Bchl-g)
   • Purple sulfur bacteria (BChl-a, BChl-b)
     • O_Chromatiales (r-proteobacteria)
       • f_Chromatiaceae
         • Stratified lakes containing H2S
         • salt marshes anoxic sediments
       • f_Ectothiorhodospiraceae
         • extremely halophilc
         • extremely alkaliphilic
     • high density in meromictic lakes
   • p_Proteobacteria (PB)
   • p_Chlorobi (GSB)
   • p_Chloroflexi (GNSB)
   • p_Acidobacteria
   • p_Firmicutes
   • Green Nonsulfur Bacteria (GNSB)
     • Within p_Chloroflexi
   • Aerobic Anoxygenic Phototrophs bacteria (AAPBs) (BChla)
     • F_Erythrobacteraceae (a-proteobacteria)
     • g_Porphyrobacter
     • g_Acdiphilium
     • g_Erythromonas
     • g_Sandaracinobacter
   • Phototrophic Acidobacteria
   • Puople nonsulfur bacteria (BChl-a, BChl-b)
     • O_Rhodospirillates (a-proteobacteria)
     • O_Rhizobiales (a-proteobacteria)
     • O_Rhodocyclales (B-proteobacteria)
     • O_Rhodobacterales (a-proteobacteria)
     • F_Comamonadaceae (B-proteobacteria)