Claim · model-written summary
Mesophyll cell division continued after epidermal division stopped, until epidermal cells reached 40 micrometers in high-LER plants.
- Taxon
- Tall Fescue
Lolium arundinaceumt0 - Outcome
- Division of mesophyll cells adjacent to abaxial epidermal cells continued after epidermal cell division stoppede0
- Value
- 40 micrometerse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Division of mesophyll cells adjacent to abaxial epidermal cells continued after epidermal cell division stopped, until epidermal cells had elongated to a mean length of 40 micrometers in the high-LER”
t0“Tall Fescue”
Title
Jennifer W. MacAdam; Jeffrey J. Volenec; Curtis J. Nelson PLANT PHYSIOLOGY 1989. doi:10.1104/pp.89.2.549
Other claims from this paper (12)
- Observation Epidermal cell elongation rate was exponential.
- Intervention effect High N increased relative epidermal cell elongation rates by 9%.
- Intervention effect High N increased leaf elongation rate by 89%.
- Observation Cell elongation lasted about 20 hours longer in the high-LER genotype, regardless of N.
- Observation The proportion of dividing mesophyll cells was greater in the high-LER genotype.
- Intervention effect High N increased the percentage of dividing mesophyll cells in both genotypes.
- Observation The corresponding epidermal cell length was 50 micrometers in the low-LER genotype.
- Observation Mesophyll cell cycle length was calculated as 12 to 13 hours.
- Intervention effect Nitrogen increased mesophyll cell number more than epidermal cell number.
- Observation Final adjacent mesophyll cell number was 10 under low N.
- Observation Final adjacent mesophyll cell number was 14 under high N.
- Method / resource A spatial model illustrates overlap of mesophyll division and epidermal elongation and the transition to secondary wall deposition.