Claim · model-written summary
Localized division appears to keep sinus cells smaller.
- Taxon
- Arabidopsis
Arabidopsist0 - Outcome
- cells at the sinus smallere0
- Qualifier
- Localized cell divisione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Localized cell division seemed to keep cells at the sinus smaller, rather than halt cell elongation.”
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.
- Observation Marginal cell numbers between teeth became similar as leaves matured.
- Mechanism The authors infer repeated spatial monitoring of cell number and regulation of cell division during tooth formation.
- 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.