Purple bacteria or purple photosynthetic bacteria are Gram-negative proteobacteria that are phototrophic, capable of producing their own food via photosynthesis.[1] They are pigmented with bacteriochlorophyll a or b, together with various carotenoids, which give them colours ranging between purple, red, brown, and orange. They may be divided into two groups – purple sulfur bacteria (Chromatiales, in part) and purple non-sulfur bacteria. Purple bacteria are anoxygenic phototrophs widely spread in nature, but especially in aquatic environments, where there are anoxic conditions that favor the synthesis of their pigments.[2]
^Bryant DA, Frigaard NU (November 2006). "Prokaryotic photosynthesis and phototrophy illuminated". Trends in Microbiology. 14 (11): 488–496. doi:10.1016/j.tim.2006.09.001. PMID 16997562.
^Cohen-Bazire G, Sistrom WR, Stanier RY (February 1957). "Kinetic studies of pigment synthesis by non-sulfur purple bacteria". Journal of Cellular and Comparative Physiology. 49 (1): 25–68. doi:10.1002/jcp.1030490104. PMID 13416343.
Purplebacteria or purple photosynthetic bacteria are Gram-negative proteobacteria that are phototrophic, capable of producing their own food via photosynthesis...
The purple sulfur bacteria (PSB) are part of a group of Pseudomonadota capable of photosynthesis, collectively referred to as purplebacteria. They are...
and the type II photosynthetic reaction center (RC P870) found in purplebacteria. In both PS II and RC P870, light drives electrons from the reaction...
Bacteria (/bækˈtɪəriə/ ; sg.: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large...
green-sulfur bacteria, Heliobacteria, and plant/cyanobacterial PS-I, use iron sulfur clusters as electron acceptors. Type II, found in chloroflexus, purple bacteria...
in purple photosynthetic bacteria are protein complexes responsible for the transfer of solar energy to the photosynthetic reaction centre. Purple bacteria...
environment. Purplebacteria can be further classified as either purple sulphur bacteria, or purple non-sulfur bacteria. Purple sulphur bacteria are more...
EARLY EARTH PURPLE?". Astrobiology Magazine. Retrieved 28 March 2021. Stoeckenius, Walther (1976). "The Purple Membrane of Salt-loving Bacteria". Scientific...
Coliform bacteria are defined as either motile or non-motile Gram-negative non-spore forming bacilli that possess β-galactosidase to produce acids and...
harvesting complex 2 in the purplebacteria Rhodoblastus acidophilus is shown in Figure 2. The light harvesting complex in purplebacteria is multifunctional;...
bacteria can conduct anoxygenic photosynthesis: green sulfur bacteria (GSB), red and green filamentous phototrophs (FAPs e.g. Chloroflexia), purple bacteria...
United States. Lavender flowers. A purple rose. Wisteria is a pale purple color. salsify Purplebacteria are bacteria that are phototrophic, that is, capable...
bacterium within the family Moraxellaceae in the gamma subdivision of the purplebacteria. Moraxella osloensis is a mutualistic symbiont of the slug-parasitic...
inhabited by photosynthesizing purplebacteria. Some other mats have a white layer inhabited by chemotrophic sulfur oxidizing bacteria and beneath them an olive...
Hyphomicrobiaceae are a family of bacteria. Among others, they include Rhodomicrobium, a genus of purplebacteria. The currently accepted taxonomy is...
purple urine bag syndrome, bacteria that colonize the urinary catheter convert indoxyl sulfate to the colored compounds indirubin and indigo. Purple urine...
are a type of chromatophores that are found in photosynthetic bacteria (e.g. purplebacteria). Chlorosome shape can vary between species, with some species...
and fermentative processes known as retting. Denitrifying bacteria Leptospira Purplebacteria (both sulfur and non-sulfur) Asian swamp eel Lepisosteidae...
sulfur bacteria in Wiktionary, the free dictionary. Sulfur bacteria may refer to: Green sulfur bacteriaPurple sulfur bacteria Sulfate-reducing bacteria Sulfur-reducing...
Niel, C. B. (1932). "On the morphology and physiology of the purple and green sulphur bacteria". Archiv für Mikrobiologie. 3: 1–112. doi:10.1007/BF00454965...
(euxinia), populated by mainly anoxygenic purplebacteria, a type of bacteriochlorophyll-based photosynthetic bacteria which uses hydrogen sulfide (H2S) for...
photosynthetic bacteria are Cyanobacteria, while anoxygenic photosynthetic bacteria belong to the purplebacteria (Pseudomonadota), green sulfur bacteria (e.g....
phycoerythrin, scytonemin, chlorophyll a, chlorophyll d, and chlorophyll f. Purple sulfur bacteria produce bacteriochlorophyll a and bacteriochlorophyll b. In cyanobacteria...
Gram-positive bacteria have a thick mesh-like cell wall made of peptidoglycan (50–90% of cell envelope), and as a result are stained purple by crystal violet...
green algae, also has a photosynthetic prokaryote as a symbiont; a purplebacteria with a reduced genome, instead of a cyanobacteria. The chromatophore...
They are also used as biological methane filters. Phototrophic purple sulfur bacteria are used in wastewater treatment processes. The ability of some...
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