Claim · model-written summary
No additional mechanism for consuming, hydrolysing or exporting PPi exists in the studied potato tissue.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- additional mechanism for consuming, hydrolysing, or exporting PPie0
- Qualifier
- in the studied tissuee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato”
e0“no additional mechanism for consuming, hydrolysing, or exporting PPi exists in the studied tissue”
Title
Inhibition of plastid PPase and NTT leads to major changes in starch and tuber formation in potato
Mariette Andersson; Helle Turesson; Stéphanie Arrivault; et al. Journal of Experimental Botany 2018. doi:10.1093/jxb/ery051
Other claims from this paper (10)
- Intervention effect In transgenic potato lines, starch and amylose content were lower with StpsPPase down-regulation, which gave the most pronounced effects.
- Intervention effect In transgenic potato lines, granule size was smaller with StpsPPase down-regulation.
- Intervention effect Single-gene down-regulation of StpsPPase or StNTT increased tuber number per plant.
- Intervention effect Single-gene down-regulation of StpsPPase or StNTT gave higher fresh weight yield.
- Intervention effect With both StpsPPase and StNTT inhibited simultaneously, some lines formed only a few, small and distorted tubers.
- Observation Metabolite analysis revealed altered amounts of sugar intermediates in potato.
- Intervention effect StpsPPase down-regulation increased ADP-glucose content in the transgenic lines.
- Observation Intermediates of vitamin C biosynthesis were increased in the transgenic potato lines.
- Mechanism The authors suggest hydrolysis of pyrophosphate by a plastidial PPase is vital for functional starch accumulation in potato tubers.
- Mechanism Functional PPi hydrolysis combined with efficient ATP import is essential for potato tuber formation and development.