Claim · model-written summary
Reduced SPS expression inhibited sucrose synthesis.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- Decreased expression of SPSe0
- Gene
- SPSe0
- Outcome
- sucrose synthesise0
- Direction
- inhibitede0
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Decreased expression of SPS inhibited sucrose synthesis”
t0“Arabidopsis thaliana”
Title
Åsa Strand; Rita Zrenner; Stephen Trevanion; et al. The Plant Journal 2000. doi:10.1046/j.1365-313x.2000.00847.x
Other claims from this paper (13)
- Intervention effect Reduced cFBPase expression inhibited sucrose synthesis.
- Intervention effect Reduced cFBPase expression caused phosphorylated intermediates to accumulate.
- Intervention effect Reduced cFBPase expression led to Pi limitation of photosynthesis.
- Intervention effect Reduced cFBPase expression stimulated starch synthesis.
- Mechanism Starch degradation maintained higher nighttime sugar levels and sucrose export.
- Observation Phosphorylated intermediates did not accumulate with reduced SPS expression.
- Observation Carbon partitioning was not redirected toward starch with reduced SPS expression.
- Intervention effect Sugar levels and sucrose export decreased during day and night with reduced SPS expression.
- Observation Ribulose-1,5-bisphosphate regeneration and photosynthesis were inhibited.
- Mechanism PGA/triose-P ratio remained low and ATP/ADP ratio high, indicating photosynthesis was not Pi recycling limited.
- Observation PPi decreased threefold in SPS antisense lines.
- Mechanism A shifted UDP-glucose/hexose phosphate ratio favoured sucrose synthesis and prevented intermediate accumulation.
- Observation AGPase activity did not increase relative to cFBPase activity.