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The major photosynthetic pigment in these bacteria is Bacteriochlorophylls c or d in green species and e in brown species, and is located in the chlorosomes and plasma membranes. [7] Chlorosomes are a unique feature that allow them to capture light in low-light conditions.
A chlorosome is a photosynthetic antenna complex found in green sulfur bacteria (GSB) and many green non-sulfur bacteria (GNsB), together known as green bacteria. [2] They differ from other antenna complexes by their large size and lack of protein matrix supporting the photosynthetic pigments.
Purple bacteria, Heliobacteria, Green Sulfur Bacteria, Chloroflexota, Chloracidobacterium thermophilum [2] 805, 830–890 BChl b: Purple bacteria: 835–850, 1020–1040 BChl c: Green sulfur bacteria, Chloroflexota, C. thermophilum, [2] C. tepidum: 745–755 BChl d: Green sulfur bacteria: 705–740 BChl e: Green sulfur bacteria: 719–726 BChl f
Chloroflexus aurantiacus is a photosynthetic bacterium isolated from hot springs, belonging to the green non-sulfur bacteria. This organism is thermophilic and can grow at temperatures from 35 to 70 °C (95 to 158 °F).
The Chloroflexia class is a group of deep branching photosynthetic bacteria (with the exception of Herpetosiphon and Kallotenue species) that currently consist of three orders: Chloroflexales, Herpetosiphonales, and Kallotenuales.
Chlorobium aggregatum is a species which exists in a symbiotic relationship with a colorless, nonphotosynthetic bacteria. This species looks like a bundle of green bacteria, attached to a central rod-like cell which can move around with a flagellum. The green, outer bacteria use light to oxidize sulfide into sulfate.
Like all other green sulfur bacteria, P. aestuarii gets its energy through a process called anoxygenic photosynthesis.Their major pigment is bacteriochlorophyll c, giving the cultures a green appearance; however, as they age, cultures can become a dirty green/brown, or white with build-up of elemental sulfur. [1]
Chlorobium chlorochromatii, originally known as Chlorobium aggregatum, is a symbiotic green sulfur bacteria that performs anoxygenic photosynthesis and functions as an obligate photoautotroph using reduced sulfur species as electron donors. Chlorobium chlorochromatii can be found in stratified freshwater lakes. [2]