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Arabidopsis type I proton-pumping pyrophosphatase expresses strongly in phloem, where it is required for pyrophosphate metabolism and photosynthate partitioning.

Plant physiology - 1 Apr 2015

Pizzio Gaston A, Paez-Valencia Julio, Khadilkar Aswad S, Regmi Kamesh, Patron-Soberano Araceli, Zhang Shangji, Sanchez-Lares Jonathan, Furstenau Tara, Li Jisheng, Sanchez-Gomez Concepcion, Valencia-Mayoral Pedro, Yadav Umesh P, Ayre Brian G, Gaxiola Roberto A

Abstract excerpt

Phloem loading is a critical process in plant physiology. The potential of regulating the translocation of photoassimilates from source to sink tissues represents an opportunity to increase crop yield. Pyrophosphate homeostasis is crucial for normal phloem function in apoplasmic loaders. The involvement of Arabidopsis (Arabidopsis thaliana) type I proton-pumping pyrophosphatase (AVP1) in phloem loading was...

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PMID: 25681328
DOI: 10.1104/pp.114.254342
PMCID: PMC4378163

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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