Claim · model-written summary
SEC3A did not appear involved in polarized secretion for expansion of tip growing root hairs.
- Taxon
- Arabidopsis
Arabidopsist0 - Organ / stage
- tip growing root hairse0
- Gene
- SEC3Ae0
- Outcome
- polarized secretion for cell expansione0
Not reportedMaterialCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Arabidopsis”
e0“SEC3A does not appear to be involved in polarized secretion for cell expansion in tip growing root hairs.”
Title
Ying Zhang; Richard Immink; Chun‐Ming Liu; et al. New Phytologist 2013. doi:10.1111/nph.12236
Other claims from this paper (7)
- Observation sec3a mutants were defective in the globular to heart stage transition of embryogenesis.
- Observation SEC3A-GFP localized to the cell plate similarly to other plant exocyst subunits.
- Observation In interphase cells SEC3A-GFP localized to the cytoplasm and plasma membrane as immobile puncta lasting 2–40 seconds.
- Observation SEC3A puncta were equally distributed on root epidermal cells and growing root hairs.
- Observation SEC3A puncta density did not decrease after these cells stopped growing.
- Intervention effect Brefeldin A inhibition of exocytosis strongly decreased SEC3A puncta density.
- Mechanism The authors suggested SEC3 landmark function is conserved in plants.