Light modulation of glyceraldehyde-3-phosphate dehydrogenase and glucose-6-phosphate dehydrogenase by photosynthetic electron flow in pea chloroplasts
Journal Article
·
· Plant Physiol.; (United States)
Light activation of NADP-linked glyceraldehyde-3-P dehydrogenase (EC 1.2.1.13) and light inactivation of glucose-6-P dehydrogenase (EC 1.1.1.49) appear to be modulated within pea leaf chloroplasts by mediators which are reduced by photosynthetic electron flow from the photosystem I reaction center. Dichlorophenyl-1,1-dimethylurea inhibition of this modulation can be completely reversed by ascorbate plus 2,6-dichlorophenolindophenol in broken chloroplasts, but not in intact chloroplasts. Intact chloroplasts are impermeable to 2,6-dichlorophenolindophenol at pH 7.5. Studies on the effect of light in reconstituted chloroplasts with photosystem I-enriched particles in the place of whole thylakoids revealed that photosystem I participants in the light modulation of NADP-linked glyceraldehyde-3-P dehydrogenase and of glucose-6-P dehydrogenase.
- Research Organization:
- Univ. of Illinois, Chicago
- OSTI ID:
- 6462871
- Journal Information:
- Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 67:2; ISSN PLPHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550200* -- Biochemistry
59 BASIC BIOLOGICAL SCIENCES
BIOCHEMICAL REACTION KINETICS
CELL CONSTITUENTS
CHARGE EXCHANGE
CHEMICAL REACTIONS
CHLOROPLASTS
COENZYMES
COMPARATIVE EVALUATIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENZYME ACTIVITY
ENZYMES
FERMIONS
FOOD
KINETICS
LEAVES
LEPTONS
METABOLISM
NADP
NUCLEOTIDES
ORGANIC COMPOUNDS
OXIDOREDUCTASES
PEAS
PERMEABILITY
PH VALUE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
RADIATIONS
REACTION KINETICS
SYNTHESIS
VEGETABLES
VISIBLE RADIATION
59 BASIC BIOLOGICAL SCIENCES
BIOCHEMICAL REACTION KINETICS
CELL CONSTITUENTS
CHARGE EXCHANGE
CHEMICAL REACTIONS
CHLOROPLASTS
COENZYMES
COMPARATIVE EVALUATIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENZYME ACTIVITY
ENZYMES
FERMIONS
FOOD
KINETICS
LEAVES
LEPTONS
METABOLISM
NADP
NUCLEOTIDES
ORGANIC COMPOUNDS
OXIDOREDUCTASES
PEAS
PERMEABILITY
PH VALUE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
RADIATIONS
REACTION KINETICS
SYNTHESIS
VEGETABLES
VISIBLE RADIATION