Homeostasis of adenylate status during photosynthesis in a fluctuating environment.
J Exp Bot
; 51 Spec No: 347-56, 2000 Feb.
Article
in En
| MEDLINE
| ID: mdl-10938842
ABSTRACT
This review describes and assesses pathways likely to influence and stabilize the ATP/reductant balance during whole cell photosynthesis. The sole reductive step of the Calvin cycle occurs during the conversion of 3-phosphoglycerate to triose phosphate. Photophosphorylation linked to this reaction can undoubtedly supply most of the ATP required by the Calvin cycle and other chloroplastic reactions. Small but crucial contributions must come from several other pathways, some of which involve co-operation between the chloroplast and the rest of the cell. Extrachloroplastic compartments can contribute to chloroplastic ATP requirements by supplying ATP directly or, probably more significantly, by accepting reducing equivalents and so supporting ATP synthesis within the chloroplast.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Photosynthesis
/
Adenosine Triphosphate
/
Homeostasis
/
NADP
Language:
En
Journal:
J Exp Bot
Journal subject:
BOTANICA
Year:
2000
Document type:
Article
Affiliation country:
United kingdom