Claim · model-written summary
Flavonol production in either anthers or pistils was required for pollen tube growth.
- Taxon
- Petunia hybrida
Petunia ×hybridat0 - Organ / stage
- anthers or the pistilse0
- Outcome
- pollen tube growthe0
- Qualifier
- production of flavonolse0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the production of flavonols in either the anthers or the pistils was required for pollen tube growth and seed set.”
t0“Petunia hybrida”
Title
Bauke Ylstra; Jacqueline Busscher; John Franken; et al. The Plant Journal 1994. doi:10.1046/j.1365-313x.1994.6020201.x
Other claims from this paper (12)
- Observation Flavonols and chs mRNA were abundant in male and female reproductive organs.
- Observation The chs promoter and flavonol synthesis were spatially and temporally regulated in stigma, style and ovules.
- Intervention effect Antisense inhibition of chs blocked flavonol biosynthesis.
- Intervention effect Flavonol absence rendered mutant plants self sterile.
- Mechanism Flavonol production in either anthers or pistils was required for seed set.
- Observation Flavonol deficient mutant pollen germinated normally.
- Observation Mutant pollen tubes ruptured after a short period in vitro and pollen grains died.
- Intervention effect Flavonol aglycones rescued the mutant pollen tube phenotype.
- Intervention effect Other flavonoids did not rescue the mutant pollen tube phenotype.
- Observation Wild type pollen tubes contained high flavonol levels throughout.
- Observation Flavonols were not detected in growing tube exine or cell wall.
- Intervention effect Apigenin completely inhibited pollen tube growth.