Characteristic of Photosynthetic Bacteria,Rhodvspirillaceae,Athlorbodaceae,Aerobic Oxygen Respiration,Carotenoids,Chromatlaceae

Characteristic of Photosynthetic Bacteria -

Group	Chl/BChl	Other Photosynthesis Pigments	Type of Respiration	Source of hydrogens
Rhodvspirillaceae (Athlorbodaceae) Purple non sulphur bacteria	BChl a or b	Carotenoids of groups 1,2 & 4	Aerobic: oxygen respiration. 1 photocentre	Usually organic compounds H₂S In some cases, but not sulphur
Chromatlaceae (Thiorbodaceae) Purple sulphur bacteria	BChl a or b	Carotenoids of groups 1,3 &4	Anaerobic 1 photocentre	H.S. S, thiosulphate & molecular hydrogen
Chlorobiaceae (Chlorobacteriaceae) Green sulphur bacteria	Chlorobium chlorophylls (BChl c or d-- major BChl a-- major )	Carotenoids of group 5	Strictly anaerobic H₂S, CO₂ & light dependent metabolism	H₂S, S, thiosulphate or molecular hydrogen. Sulphate as byproduct.
Chloroflexaceae Gliding filamentous green bacteria	BChl c-- major BChl a-- major	β + γ caotenes&their dervatives	Aerobic: oxygen respiration	H S& organic molecules
Cyanobacteria Blue green bacteria	Chl a	Carotenoids Green Species Chlorobactene OH-Chlorobactene Brown species Isorenieratene β-isorenieratene	Aerobic: oxygen respiration. Oxygenic photosynthesis	Water. Emit oxygen as by product
Prochlorophyta	Chl a& b		Aerobic: oxygen respiration. Oxygenic photosynthesis	Water
Higher plants	Chl a and b Chl c in brown algae	Carotenoids	Aerobic: oxygen respiration. Oxygenic photosynthesis	Water

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