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“magnitude of decrease”

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1970

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paper W1549604758 ✕

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Phlorizin prevented the ADP-associated ΔpH decrease.

Treatment: phlorizine0
Outcome: this decreasee0
Direction: preventede0

Not reportedTaxonComparator

Verbatim

e0
“In the presence of arsenate, ΔpH was decreased by ADP up to 0.4 unit and this decrease was prevented by phlorizin, an energy transfer inhibitor.”
✓ located verbatim in the source · abstract, characters 532–676

Title

Effects of Adenine Nucleotides and of Photophosphorylation on H+ Uptake and the Magnitude of the H+ Gradient in Illuminated Chloroplasts

Archie R. Portis; Richard E. McCarty Journal of Biological Chemistry 1974. doi:10.1016/s0021-9258(19)42246-1

Other claims from this paper (5)

Intervention effect Saturating ADP with arsenate decreased steady-state H+ uptake in illuminated chloroplasts.
Intervention effect ATP or ADP without arsenate enhanced the light-induced chloroplast H+ gradient by 0.15 to 0.2 unit.
Intervention effect ADP with arsenate decreased ΔpH by up to 0.4 unit.
Association With reduced light intensity or added uncoupler, phosphorylation rates fell faster than ΔpH.
Association A 0.3 to 0.34 unit decrease in ΔpH accompanied a 10-fold decrease in phosphorylation rate.

Associationobservedoriginal resultmeasured

Claim · model-written summary

A 0.3 to 0.34 unit decrease in ΔpH accompanied a 10-fold decrease in phosphorylation rate.

Outcome: rate of phosphorylatione0
Direction: decreasee0
Value: 10-folde0
Qualifier: 0.3 to 0.34 unite0
Comparator: ΔpHe0

Not reportedTaxon

Verbatim

e0
“Plots of log phosphorylation rate against ΔpH were linear and showed that a decrease in ΔpH of 0.3 to 0.34 unit was accompained by a 10-fold decrease in the rate of phosphorylation.”
✓ located verbatim in the source · abstract, characters 906–1087

Title

Effects of Adenine Nucleotides and of Photophosphorylation on H+ Uptake and the Magnitude of the H+ Gradient in Illuminated Chloroplasts

Archie R. Portis; Richard E. McCarty Journal of Biological Chemistry 1974. doi:10.1016/s0021-9258(19)42246-1

Other claims from this paper (5)

Intervention effect Saturating ADP with arsenate decreased steady-state H+ uptake in illuminated chloroplasts.
Intervention effect ATP or ADP without arsenate enhanced the light-induced chloroplast H+ gradient by 0.15 to 0.2 unit.
Intervention effect ADP with arsenate decreased ΔpH by up to 0.4 unit.
Intervention effect Phlorizin prevented the ADP-associated ΔpH decrease.
Association With reduced light intensity or added uncoupler, phosphorylation rates fell faster than ΔpH.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

ADP with arsenate decreased ΔpH by up to 0.4 unit.

Treatment: ADPe0
Outcome: ΔpHe0
Direction: decreasede0
Value: 0.4 unite0
Qualifier: In the presence of arsenatee0

Not reportedTaxonComparator

Verbatim

e0
“In the presence of arsenate, ΔpH was decreased by ADP up to 0.4 unit and this decrease was prevented by phlorizin, an energy transfer inhibitor.”
✓ located verbatim in the source · abstract, characters 532–676

Title

Effects of Adenine Nucleotides and of Photophosphorylation on H+ Uptake and the Magnitude of the H+ Gradient in Illuminated Chloroplasts

Archie R. Portis; Richard E. McCarty Journal of Biological Chemistry 1974. doi:10.1016/s0021-9258(19)42246-1

Other claims from this paper (5)

Intervention effect Saturating ADP with arsenate decreased steady-state H+ uptake in illuminated chloroplasts.
Intervention effect ATP or ADP without arsenate enhanced the light-induced chloroplast H+ gradient by 0.15 to 0.2 unit.
Intervention effect Phlorizin prevented the ADP-associated ΔpH decrease.
Association With reduced light intensity or added uncoupler, phosphorylation rates fell faster than ΔpH.
Association A 0.3 to 0.34 unit decrease in ΔpH accompanied a 10-fold decrease in phosphorylation rate.

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“magnitude of decrease”

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