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פותח על ידי קלירמאש פתרונות בע"מ -
Sulfide-Dependent Anoxygenic Photosynthesis in Prokaryotes: Sulfide-Quinone Reductase (SQR), the Initial Step
Year:
1999
Source of publication :
The Phototrophic Prokaryotes
Authors :
שחק, יוספה
;
.
Volume :
Co-Authors:

Schütz, M., Bronstein, M., Griesbeck, C., Hauska, G. and Padan E.

Facilitators :
From page:
217
To page:
228
(
Total pages:
12
)
Abstract:

Anoxygenic photosynthesis with sulfide serving as the electron donor is a property unique to prokaryotes. Most photosynthetic bacteria can grow photoautotrophically using sulfide (as well as few other inorganic sulfur compounds) as electron donors for CO2 fixation (see ref. 1 for recent review). Cyanobacteria are exceptional in the world of phototrophic prokaryotes. With the closely related prochlorophytes, they are the only eubacteria that can perform plant-type oxygenic photosynthesis, using two photosystems in series and water as the electron donor. However, some species of cyanobacteria can facultatively shift to anoxygenic, sulfide-dependent photosynthesis in which only PS I is involved2-5. This unique capacity to shift between anoxygenic and oxygenic photosynthesis was discovered in various strains of cyanobacteria, evolutionarily distant from each other3. It was considered to represent a primitive relic of the evolution of photosynthesis6. Of these strains, the filamentous cyanobacterium Oscillatoria limnetica has been studied most extensively. O. limnetica shifts to anoxygenic photosynthesis 2—3 hours after incubation in the presence of sulfide and light, in an inducible process specific to sulfide7, 8. Depending on the growth conditions, the induced cells perform several sulfide-dependent reactions: CO2 fixation, 3, 7-9 H2 evolution10 or N2 fixation. 11

Note:
Related Files :
anoxygenic photosynthesis
Green Sulfur Bacterium
Rhodobacter capsulatus
sulfide-quinone reductase (SQR)
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1007/978-1-4615-4827-0_26
Article number:
0
Affiliations:
Database:
Publication Type:
פרק מתוך ספר
;
.
Language:
אנגלית
Editors' remarks:
ID:
52490
Last updated date:
02/03/2022 17:27
Creation date:
20/12/2020 16:16
Scientific Publication
Sulfide-Dependent Anoxygenic Photosynthesis in Prokaryotes: Sulfide-Quinone Reductase (SQR), the Initial Step

Schütz, M., Bronstein, M., Griesbeck, C., Hauska, G. and Padan E.

Sulfide-Dependent Anoxygenic Photosynthesis in Prokaryotes: Sulfide-Quinone Reductase (SQR), the Initial Step

Anoxygenic photosynthesis with sulfide serving as the electron donor is a property unique to prokaryotes. Most photosynthetic bacteria can grow photoautotrophically using sulfide (as well as few other inorganic sulfur compounds) as electron donors for CO2 fixation (see ref. 1 for recent review). Cyanobacteria are exceptional in the world of phototrophic prokaryotes. With the closely related prochlorophytes, they are the only eubacteria that can perform plant-type oxygenic photosynthesis, using two photosystems in series and water as the electron donor. However, some species of cyanobacteria can facultatively shift to anoxygenic, sulfide-dependent photosynthesis in which only PS I is involved2-5. This unique capacity to shift between anoxygenic and oxygenic photosynthesis was discovered in various strains of cyanobacteria, evolutionarily distant from each other3. It was considered to represent a primitive relic of the evolution of photosynthesis6. Of these strains, the filamentous cyanobacterium Oscillatoria limnetica has been studied most extensively. O. limnetica shifts to anoxygenic photosynthesis 2—3 hours after incubation in the presence of sulfide and light, in an inducible process specific to sulfide7, 8. Depending on the growth conditions, the induced cells perform several sulfide-dependent reactions: CO2 fixation, 3, 7-9 H2 evolution10 or N2 fixation. 11

Scientific Publication
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