Claim · model-written summary
After 96 hr, 50% of the administered 14C had been released as 14CO2, showing extensive arginine metabolism.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Verbatim
e0“pumpkin seedlings”
e1“after 96 hr 50% of the administered 14C had been released as 14CO2”
Title
Arginine metabolism by pumpkin seedlings. Separation of plant extracts by ion exchange resins
WALTER E. SPLITTSTOESSER Plant and Cell Physiology 1969. doi:10.1093/oxfordjournals.pcp.a074401
Other claims from this paper (5)
- Observation At most 24% of the 14C administered to the cotyledons as arginine was transported to the axis tissue.
- Observation The remaining label was mainly in unmetabolized arginine, protein or the axis tissue, with little label in other amino acids.
- Mechanism The authors suggest that the arginine incorporated into cotyledonary protein indicates rapid protein turnover.
- Mechanism The authors suggest that arginine carbon goes into protein or is catabolized to CO2, while the carbon for new amino acid skeletons comes from sugar.
- Method / resource A simple, reproducible method is reported for the quantitative fractionation of plant extracts or hydrolysates into basic, acidic and neutral amino acids, organic acids and sugars.