Photosynthesis at the far-red region of the spectrum in Acaryochloris marina
Biol. Res
;
50: 16, 2017. graf
Article
in English
| LILACS
| ID: biblio-838970
ABSTRACT
Acaryochloris marina is an oxygenic cyanobacterium that utilizes far-red light for photosynthesis. It has an expanded genome, which helps in its adaptability to the environment, where it can survive on low energy photons. Its major light absorbing pigment is chlorophyll d and it has α-carotene as a major carotenoid. Light harvesting antenna includes the external phycobilin binding proteins, which are hexameric rods made of phycocyanin and allophycocyanins, while the small integral membrane bound chlorophyll binding proteins are also present. There is specific chlorophyll a molecule in both the reaction center of Photosystem I (PSI) and PSII, but majority of the reaction center consists of chlorophyll d. The composition of the PSII reaction center is debatable especially the role and position of chlorophyll a in it. Here we discuss the photosystems of this bacterium and its related biology.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Photosynthesis
/
Chlorophyll
/
Cyanobacteria
Language:
English
Journal:
Biol. Res
Journal subject:
Biology
Year:
2017
Type:
Article
Affiliation country:
Pakistan
Institution/Affiliation country:
Islamia College University Peshawar/PK
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