Claim · model-written summary
The authors infer repeated spatial monitoring of cell number and regulation of cell division during tooth formation.
- Taxon
- Arabidopsis
Arabidopsist0 - Outcome
- teeth are formede0
- Qualifier
- spatially monitors cell number and regulates cell divisione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“teeth are formed by repetition of an unknown mechanism that spatially monitors cell number and regulates cell division.”
t0“Arabidopsis”
Title
Mechanisms of leaf tooth formation in Arabidopsis
Eiko Kawamura; Gorou Horiguchi; Hirokazu Tsukaya The Plant Journal 2010. doi:10.1111/j.1365-313x.2010.04156.x
Other claims from this paper (10)
- Observation After tooth emergence, marginal cells except sinus and tip cells elongate rapidly.
- Mechanism Localized division appears to keep sinus cells smaller.
- Observation Marginal cell numbers between teeth became similar as leaves matured.
- Observation cuc2-3 forms fewer leaf margin hydathodes and auxin maxima.
- Mechanism CUC2 is inferred to pattern serration through auxin regulation.
- Mechanism CUC2 promotes tooth outgrowth.
- Observation Mutants with increased CUC2 expression form ectopic tissues.
- Observation Mutants with increased CUC2 expression mis-express STM at the sinus.
- Observation STM expression also occurs infrequently in wild type.
- Mechanism The authors infer STM involvement in simple-leaf serration.