Claim · model-written summary
As the tonoplast disintegrated, [3H]uridine incorporation into the nucleus and cytoplasm stopped
- Treatment
- [3H]uridinee7
- Outcome
- [3H]uridine incorporation into both the nucleus and the cytoplasme7
- Direction
- stoppede7
- Qualifier
- As the tonoplast of the sieve element disintegratede7
LathyrusNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“secondary phloem of the primary root of Pisum”
e7“As the tonoplast of the sieve element disintegrated, [3H]uridine incorporation into both the nucleus and the cytoplasm stopped, which is interpreted as a cessation in RNA synthesis”
Title
Development of the secondary phloem of the primary root of Pisum
S Zee; TC Chambers Australian Journal of Botany 1969. doi:10.1071/bt9690199
Other claims from this paper (8)
- Observation The sieve element plastid lacks a well-developed internal membrane system and contains starch granules and protein crystalloids
- Observation [3H]thymidine label was specifically lodged in the chromatin of cambial initials, companion cells, phloem parenchyma cells and young sieve elements
- Observation During sieve element maturation the [3H]thymidine label became less specifically associated with chromatin
- Observation The [3H]uridine labelling pattern was associated with the nucleolus, chromatin and cytoplasm of young sieve elements, companion cells and phloem parenchyma
- Observation The young sieve element, companion cells and phloem parenchyma were active in RNA synthesis
- Observation The nucleolus disappeared at a very early stage of sieve element development
- Observation Nucleolus disappearance was associated with a decrease in [3H]uridine incorporation into the nucleus
- Observation [3H]uridine was not incorporated into the slime material at any stage of sieve element development