Claim · model-written summary
P deficiency decreased total adenylate in the plant cell fraction of soybean nodules by 62%.
- Taxon
- soybean (Glycine max L. Merr.)
Glycine maxe0 - Organ / stage
- plant cell fraction of nodulese5
- Treatment
- P deficiency treatmente5
- Outcome
- total adenylatee5
- Direction
- decreasede5
- Value
- 62e5
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“energy status of soybean (Glycine max L. Merr.) nodules”
e5“ATP and total adenylate concentrations and energy charge in the plant cell fraction of nodules were significantly decreased 91, 62, and 50%, respectively, by the P deficiency treatment”
Title
Energy Status and Functioning of Phosphorus-Deficient Soybean Nodules
Tong-Min Sa; Daniel W. Israel PLANT PHYSIOLOGY 1991. doi:10.1104/pp.97.3.928
Other claims from this paper (15)
- Intervention effect Continuous P deficiency decreased whole plant dry mass of soybean relative to P-sufficient controls by 62% at 44 days.
- Intervention effect Continuous P deficiency decreased whole plant P of soybean relative to P-sufficient controls by 90%.
- Intervention effect Continuous P deficiency decreased whole plant N of soybean relative to P-sufficient controls by 78%.
- Intervention effect P deficiency decreased specific nitrogenase activity in soybean nodules by an average of 28% over 16 days.
- Intervention effect Whole nodules of P-deficient soybean contained 70 to 75% lower ATP concentrations than P-sufficient controls.
- Intervention effect P treatment did not significantly affect energy charge or ATP concentrations in the bacteroid fraction of soybean nodules.
- Intervention effect P deficiency decreased ATP in the plant cell fraction of soybean nodules by 91%.
- Intervention effect P deficiency decreased energy charge in the plant cell fraction of soybean nodules by 50%.
- Intervention effect After alleviation of P limitation, nitrogenase activity in the plant cell fraction recovered to nonstressed levels within 2 days.
- Intervention effect After alleviation of P limitation, energy charge in the plant cell fraction recovered to nonstressed levels within 2 days.
- Intervention effect After alleviation of P limitation, ATP concentration in the plant cell fraction recovered to nonstressed levels within 4 days.
- Intervention effect Bacteroid mass per unit nodule mass and bacteroid N concentration did not reach nonstressed levels until 7 days after alleviation of P limitation.
- Intervention effect Energy charge in the bacteroid fraction of soybean recovering from P deficiency was decreased by 10% relative to P-sufficient controls at two sampling dates.
- Mechanism P deficiency is suggested to impair oxidative phosphorylation in the plant cell fraction of soybean nodules more than in the bacteroids.
- Mechanism P deficiency is concluded to decrease specific nitrogenase activity by inhibiting an energy-dependent reaction in the plant cell fraction of nodules.