ArticleScientific reports2018
Phytase overexpression in Arabidopsis improves plant growth under osmotic stress and in combination with phosphate deficiency.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 20 citations in OpenAlex.
- Whole-genome sequencing and functional validation of the plant growth-promoting Bacillus velezensis DO23 isolated in Vietnam.World journal of microbiology & biotechnology · 2026Article
- Arbuscular Mycorrhizal Fungi-Mediated Reconfiguration of Poplar Leaf C-N-P Metabolic Networks: Environment-Dependent Synergies and Nutrient Interactions.Journal of fungi (Basel, Switzerland) · 2026Article
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- Natural variations of chlorophyll fluorescence and ion transporter genes influenced the differential response ofFrontiers in plant science · 2023Article
- Foliar Application of an Inositol-Based Plant Biostimulant Boosts Zinc Accumulation in Wheat Grains: A μ-X-Ray Fluorescence Case Study.Frontiers in plant science · 2022Article
- Link between Lipid Second Messengers and Osmotic Stress in Plants.International journal of molecular sciences · 2021Review
- Effects of Simulated Microgravity on the Proteome and Secretome of the Polyextremotolerant Black FungusFrontiers in genetics · 2021Article
- Article
- Prescience of endogenous regulation in Arabidopsis thaliana by Pseudomonas putida MTCC 5279 under phosphate starved salinity stress condition.Scientific reports · 2020Article
- Manipulation of Ascorbate Biosynthetic, Recycling, and Regulatory Pathways for Improved Abiotic Stress Tolerance in Plants.International journal of molecular sciences · 2020Review
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Engineering osmotolerant plants is a challenge for modern agriculture. An interaction between osmotic stress response and phosphate homeostasis has been reported in plants, but the identity of molecules involved in this interaction remains unknown. In this study we assessed the role of phytic acid (PA) in response to osmotic stress and/or phosphate deficiency in Arabidopsis thaliana. For this purpose, we used Arabidopsis lines (L7 and L9) expressing a bacterial beta-propeller phytase PHY-US417, and a mutant in inositol polyphosphate kinase 1 gene (ipk1-1), which were characterized by low PA content, 40% (L7 and L9) and 83% (ipk1-1) of the wild-type (WT) plants level. We show that the PHY-overexpressor lines have higher osmotolerance and lower sensitivity to abscisic acid than ipk1-1 and WT. Furthermore, PHY-overexpressors showed an increase by more than 50% in foliar ascorbic acid levels and antioxidant enzyme activities compared to ipk1-1 and WT plants. Finally, PHY-overexpressors are more tolerant to combined mannitol stresses and phosphate deficiency than WT plants. Overall, our results demonstrate that the modulation of PA improves plant growth under osmotic stress, likely via stimulation of enzymatic and non-enzymatic antioxidant systems, and that beside its regulatory role in phosphate homeostasis, PA may be also involved in fine tuning osmotic stress response in plants.
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