ArticlePLoS genetics2024
Inositol pyrophosphate catabolism by three families of phosphatases regulates plant growth and development.
Article in PLoS genetics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Review
- Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates.FEBS letters · 2026Review
- Analytical methods and tools for studying inositol phosphates.FEBS letters · 2026Review
- Telomere-to-telomere genome of Stylosanthes guianensis uncovers symbiotic adaptation to phosphorus-deficient soils.Genome biology · 2026Article
- Article
- Affinity-Based Interactome Mapping of Inositol Pyrophosphates Reveals 4/6-PP-InsPAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Insomnia Increases Susceptibility to Sciatica: Evidence from Mendelian Randomization and Integrative Genetic Analyses.Journal of pain research · 2026Article
- NUDIX hydrolases target specific inositol pyrophosphates and regulate phosphate homeostasis and bacterial pathogen susceptibility in Arabidopsis.Journal of integrative plant biology · 2025Article
- EstablishingAnalytical chemistry · 2025Article
- Metabolic hubs under attack: Effector-mediated manipulation of plant inositol phosphate signaling.PLoS pathogens · 2025Article
- Article
- Conservation of heat stress acclimation by the IPK2-type kinases that control the synthesis of the inositol pyrophosphate 4/6-InsP7 in land plants.PLoS genetics · 2025Article
- Article
- A small signaling domain controls PPIP5K phosphatase activity in phosphate homeostasis.Nature communications · 2025Article
- A fusion protein of polyphosphate kinase 1 (PPK1) and a Nudix hydrolase is involved in inorganic polyphosphate accumulation in the unicellular red alga Cyanidioschyzon merolae.Plant molecular biology · 2024Article
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Inositol pyrophosphates (PP-InsPs) are nutrient messengers whose cellular levels are precisely regulated. Diphosphoinositol pentakisphosphate kinases (PPIP5Ks) generate the active signaling molecule 1,5-InsP8. PPIP5Ks harbor phosphatase domains that hydrolyze PP-InsPs. Plant and Fungi Atypical Dual Specificity Phosphatases (PFA-DSPs) and NUDIX phosphatases (NUDTs) are also involved in PP-InsP degradation. Here, we analyze the relative contributions of the three different phosphatase families to plant PP-InsP catabolism. We report the biochemical characterization of inositol pyrophosphate phosphatases from Arabidopsis and Marchantia polymorpha. Overexpression of different PFA-DSP and NUDT enzymes affects PP-InsP levels and leads to stunted growth phenotypes in Arabidopsis. nudt17/18/21 knock-out mutants have altered PP-InsP pools and gene expression patterns, but no apparent growth defects. In contrast, Marchantia polymorpha Mppfa-dsp1ge, Mpnudt1ge and Mpvip1ge mutants display severe growth and developmental phenotypes and associated changes in cellular PP-InsP levels. Analysis of Mppfa-dsp1geand Mpvip1ge mutants supports a role for PP-InsPs in Marchantia phosphate signaling, and additional functions in nitrate homeostasis and cell wall biogenesis. Simultaneous elimination of two phosphatase activities enhanced the observed growth phenotypes. Taken together, PPIP5K, PFA-DSP and NUDT inositol pyrophosphate phosphatases regulate growth and development by collectively shaping plant PP-InsP pools.
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