Claim · model-written summary
A significant portion of total tobacco leaf mRNA shifted away from polyribosomes after 20 minutes in darkness.
- Taxon
- tobacco
Nicotiana tabacume0 - Organ / stage
- leafe0
- Treatment
- in the darke0
- Outcome
- total tobacco leaf mRNA is shifted from polyribosomal to non-polyribosomal fractionse0
- Direction
- shiftede0
- Value
- 20 mine0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant portion of total tobacco leaf mRNA is shifted from polyribosomal to non-polyribosomal fractions after 20 min in the dark”
Title
Eric R. Hansen; Marie E. Petracek; Lynn F. Dickey; et al. PLANT PHYSIOLOGY 2001. doi:10.1104/pp.125.2.770
Other claims from this paper (7)
- Intervention effect The Fed-1 internal light response element rapidly reduced translational efficiency after darkness.
- Intervention effect iLRE-containing mRNAs dissociated from polyribosomes within 20 minutes of dark transfer.
- Observation The translation and polyribosome changes preceded decline in mRNA abundance.
- Intervention effect Reillumination rapidly reversed mRNA polyribosome association.
- Mechanism The authors propose that polyribosome association or translation stabilizes Fed-1 mRNA in illuminated leaves.
- Mechanism In darkness, much Fed-1 mRNA dissociates from polyribosomes and is subsequently degraded in the authors model.
- Observation Some cytoplasmic mRNAs encoding photosynthesis proteins belonged to the rapidly down-regulated translation class, but others did not.