Claim · model-written summary
The mutations did not change cell-wall polysaccharide amounts.
- Taxon
- Arabidopsis
Arabidopsist0 - Treatment
- mutationse0
- Outcome
- polysaccharidese0
- Direction
- unaffectede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amounts of cell wall-associated phenolics and polysaccharides were unaffected by the mutations.”
t0“Arabidopsis”
Title
S R Turner; C R Somerville The Plant Cell 1997. doi:10.1105/tpc.9.5.689
Other claims from this paper (12)
- Mechanism Recessive mutations at three loci caused collapse of mature Arabidopsis xylem cells.
- Association The irx lines had up to an eightfold reduction in stem cellulose.
- Intervention effect The mutations did not change cell-wall phenolic amounts.
- Mechanism Reduced cellulose changed the spatial organization of wall material in irx lines.
- Mechanism Normal cellulose deposition may be required to assemble lignin or polysaccharides.
- Mechanism Reduced cellulose content decreased stem stiffness.
- Mechanism The authors infer that irx walls fail to resist compressive forces.
- Mechanism Cellulose may directly provide resistance to compressive forces.
- Mechanism Cellulose may be needed to develop normal lignin structure.
- Observation irx plants grew slightly more slowly and were shorter.
- Observation irx plants were otherwise normal in appearance.
- Recommendation The authors expect irx mutations to help identify control factors for cell-wall synthesis and deposition.