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Anoxygenic photosynthesis is a special form of photosynthesis used by some bacteria and archaea, which differs from the better known oxygenic photosynthesis in plants in the reductant used (e.g. hydrogen sulfide instead of water) and the byproduct generated (e.g. elemental sulfur instead of molecular oxygen).
Anoxygenic photosynthesis is the phototrophic process where light energy is captured and converted to ATP, without the production of oxygen. Water is therefore not used as an electron donor.
Anoxygenic photosynthesis is the phototrophic process where light energy is captured and converted to ATP, without the production of oxygen; water is, therefore, not used as an electron donor.
The main difference between oxygenic and anoxygenic photosynthesis is that oxygenic photosynthesis produces oxygen as a byproduct whereas anoxygenic photosynthesis does not produce oxygen as a byproduct. Key Areas Covered. 1. What is Oxygenic Photosynthesis. – Definition, Process, Significance. 2. What is Anoxygenic Photosynthesis.
Anoxygenic photosynthesis is an essential part of the terrestrial ecosystem and plays an important role in the global flux of carbon, nitrogen, and possibly sulfur, but never produces oxygen. These bacteria absorb extraterrestrial light energy from the sun, convert it into biochemical energy, and adapt to the terrestrial ecosystem.
Collectively, these observations based on the physiology, ecology, and modes of extant photosynthesis imply that early anoxygenic phototrophs, growing through photoferrotrophy in Fe-rich ...
Because oxygen is generated as a byproduct and is released, this type of photosynthesis is referred to as oxygenic photosynthesis. However, when other reduced compounds serve as the electron donor, oxygen is not generated; these types of photosynthesis are called anoxygenic photosynthesis.
Anoxygenic photosynthesis predates oxygen-evolving photosynthesis and played a key role in developing and fine-tuning the photosystem architecture of modern oxygenic phototrophs. The release of oxygen as a by-product of metabolic activity would have caused oxidative damage to anaerobic microbiota that evolved under the anoxic, reducing ...
Anoxygenic photosynthesis uses energy from sunlight to couple the reduction of C in CO2 to the anaerobic oxidation of S in S 0 or H 2 S. If one is accustomed to thinking of S oxidation in a strictly aerobic sense, then anaerobic S oxidation appears contradictory.
Because oxygen is generated as a byproduct and is released, this type of photosynthesis is referred to as oxygenic photosynthesis. However, when other reduced compounds serve as the electron donor, oxygen is not generated; these types of photosynthesis are called anoxygenic photosynthesis.