Ferredoxin and Photosynthetic Phosphorylation

Arnon, Daniel I.; Tsujimoto, Harry Y.; McSwain, Berah D.

doi:10.1038/214562a0

Cited by 164 publications

(76 citation statements)

References 21 publications

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“…Papers by Arnon et al (1) anld Vernon and Avron (40) give comprehensive discussions of the energetics of these photo.synthetic processes.…”

mentioning

confidence: 99%

“…The other site of energy production ini green tissuie is the chioroplasts;. In chloroplasts ATNP is pro-(lilced by photosynithetic reactions (1,40).…”

mentioning

confidence: 99%

“…)sed for 1 In the dark ithe effect of mCl-GCP at a concentration of 0.001 mm was similtar to thatt of DNP and NaN3. In the light, however, mCl-CCP was twice as effective at inhib,iting K+ absorption as was NaN3 or DNP.…”

mentioning

confidence: 99%

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Kinetics and Energetics of Light-enhanced Potassium Absorption by Corn Leaf Tissue

Rains

1968

Plant Physiol.

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“…Papers by Arnon et al (1) anld Vernon and Avron (40) give comprehensive discussions of the energetics of these photo.synthetic processes.…”

mentioning

confidence: 99%

“…The other site of energy production ini green tissuie is the chioroplasts;. In chloroplasts ATNP is pro-(lilced by photosynithetic reactions (1,40).…”

mentioning

confidence: 99%

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Kinetics and Energetics of Light-enhanced Potassium Absorption by Corn Leaf Tissue

Rains

1968

Plant Physiol.

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“…Thus, electron transfer to 02 likely occurs only when NADP is limiting. The higher affinity of reduced ferredoxin for NADP than for 02 (1) lends credence to this concept.…”

Section: Resultsmentioning

confidence: 76%

“…Such a reaction occurs in fragmented spinach chloroplasts in which an equimolar exchange of 02 is accompanied by ATP synthesis (24,33). Since the photophosphorylation occurs during transfer of electrons from H20 to 02, this process has been called "oxygen-linked noncyclic photophosphorylation" (1). Its importance may lie in providing sufficient ATP, in addition to that produced during NADP synthesis, to convert CO. to the level of carbohydrate (13,16,36).…”

Section: Resultsmentioning

confidence: 99%

Photorespiratory Phenomena in Maize

Volk¹,

Jackson²

1972

Plant Physiol.

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Concurrent 02 evolution, 02 uptake, and CO2 uptake by illuminated maize (Zea maya) leaves were measured using 12CO2 and 802. Considerable 02 uptake occurred during active photosynthesis. At CO2 compensation, 02 uptake increased. Associated with this increase was a decrease in 02 release such that a stoichiometric exchange of 02 occurred. The rate of 02 exchange at CO2 compensation was directly related to 02 concentration in the atmosphere at least up to 8% (v/v).When illuminated maize leaves were exposed to saturating CO2 concentrations containing approximately equal amounts of 'CO2 and '3CO2, the latter was taken up more rapidly, thus depressing the atom % 13C in the atmosphere. Moreover, upon exposure to CO2 containing 96 atom % "3C, there occurred a directly measurable efflux of '2CO2 from the leaves for at least 15 minutes. During this period an equimolar evolution of 1602 and uptake of 12CO2 was observed. Thereafter, although the rate of 1602 evolution remained unchanged, the rate of "3CO2 uptake declined markedly, suggesting continual "3C enrichment of the photorespiratory substrate.It is concluded that a finite photorespiratory process occurs in maize and that the CO2 generated thereby is efficiently recycled. Recycling maintains the internal C02 concentration at a level difficult to detect by most photorespiratory assays.

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The Photochemical Systems of Photosynthesis

Nk¹

1968

Advances in Enzymology - And Related Areas of Molecular Biology

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Ferredoxin and Photosynthetic Phosphorylation

Cited by 164 publications

References 21 publications

Kinetics and Energetics of Light-enhanced Potassium Absorption by Corn Leaf Tissue

Kinetics and Energetics of Light-enhanced Potassium Absorption by Corn Leaf Tissue

Photorespiratory Phenomena in Maize

The Photochemical Systems of Photosynthesis

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