Claim · model-written summary
Seeds of the Arabidopsis double mutant contain high levels of the spermidine precursor putrescine.
- Taxon
- Arabidopsis
Arabidopsist0 - Outcome
- levels of its precursor, putrescinee0
- Direction
- higherinferrede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high levels of its precursor, putrescine”
t0“Arabidopsis”
Title
Spermidine Synthase Genes Are Essential for Survival of Arabidopsis
Akihiro Imai; Takashi Matsuyama; Yoshie Hanzawa; et al. PLANT PHYSIOLOGY 2004. doi:10.1104/pp.104.041699
Other claims from this paper (6)
- Observation Arabidopsis spds1-1 spds2-1 double-mutant seeds are abnormally shrunken and their embryos are arrested morphologically at the heart-torpedo transition stage.
- Observation Each single spds1 or spds2 T-DNA mutant allele shows normal growth in Arabidopsis.
- Observation Seeds of the Arabidopsis double mutant contain significantly reduced levels of spermidine.
- Intervention effect The embryo lethal phenotype of the Arabidopsis spds1-1 spds2-1 double mutant is complemented by the wild-type SPDS1 gene.
- Observation An F2 seed population from the cross of the spds2-1 allele with SPDS1 RNA interference transgenic lines showed a nearly identical seed phenotype to the double mutant.
- Mechanism The authors conclude that spermidine synthase plays a critical role in plant embryo development, based on genetic evidence.