ArticlePlant physiology2014
Abscisic acid promotion of arbuscular mycorrhizal colonization requires a component of the PROTEIN PHOSPHATASE 2A complex.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.
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Who cites it
52 citing papers in PubMed, 99 citations in OpenAlex.
- Review
- Arbuscular mycorrhizal symbiosis in tomato roots with a diverse range of carotene accumulation.Mycorrhiza · 2026Article
- A semi-hydroponic cultivation system designed for collecting root exudates from maize in symbiosis with arbuscular mycorrhiza fungi.Journal of plant research · 2026Article
- Low Dosage of ABA Enhances Arbuscule Formation and Recovers the Inhibitory Effect of Low pH on This Process.Plant-environment interactions (Hoboken, N.J.) · 2026Article
- A Potential Role for Common Mycorrhizal Networks (CMNs) in Mediating Response Strategies and Signaling Between Different Plant Combinations Under Salt Stress.Journal of fungi (Basel, Switzerland) · 2026Article
- Abscisic acid at the crossroad of abiotic stress responses and plant-microbe interactions.PLoS pathogens · 2026Article
- Synthetic microbial community in pristine environment promotes the growth of the endangered plant Lilium tsingtauense.Microbiome · 2025Article
- Emerging crops and plant growth-promoting bacteria (PGPB): a synergistic approach to climate-resilient agriculture.Microbiome · 2025Review
- LYCOPENE β-CYCLASE overexpression improves growth, modulates hormone content, and affects rhizospheric interactions in tobacco and tomato roots.Plant cell reports · 2025Article
- ABA promotes fatty acid biosynthesis and transport to boost arbuscular mycorrhizal symbiosis in apple roots.Plant communications · 2025Article
- Role ofBiology · 2025Article
- Intricate phytohormonal orchestration mediates mycorrhizal symbiosis and stress tolerance.Mycorrhiza · 2025Review
- Article
- Review
- Sesquiterpenes of the ectomycorrhizal fungus Pisolithus microcarpus alter root growth and promote host colonization.Mycorrhiza · 2024Article
- TheFrontiers in microbiology · 2024Article
- Involvement of Dynamic Adjustment of ABA, Proline and Sugar Levels in Rhizomes in Effective Acclimation ofInternational journal of molecular sciences · 2023Article
- Distinct Clades of Protein Phosphatase 2A Regulatory B'/B56 Subunits Engage in Different Physiological Processes.International journal of molecular sciences · 2023Review
- The role of arbuscular mycorrhizal symbiosis in plant abiotic stress.Frontiers in microbiology · 2023Review
- Zaxinone synthase controls arbuscular mycorrhizal colonization level in rice.The Plant journal : for cell and molecular biology · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
Legumes can establish intracellular interactions with symbiotic microbes to enhance their fitness, including the interaction with arbuscular mycorrhizal (AM) fungi. AM fungi colonize root epidermal cells to gain access to the root cortex, and this requires the recognition by the host plant of fungus-made mycorrhizal factors. Genetic dissection has revealed the symbiosis signaling pathway that allows the recognition of AM fungi, but the downstream processes that are required to promote fungal infection are poorly understood. Abscisic acid (ABA) has been shown to promote arbuscule formation in tomato (Solanum lycopersicum). Here, we show that ABA modulates the establishment of the AM symbiosis in Medicago truncatula by promoting fungal colonization at low concentrations and impairing it at high concentrations. We show that the positive regulation of AM colonization via ABA requires a PROTEIN PHOSPHATASE 2A (PP2A) holoenzyme subunit, PP2AB'1. Mutations in PP2AB'1 cause reduced levels of AM colonization that cannot be rescued with permissive ABA application. The action of PP2AB'1 in response to ABA is unlinked to the generation of calcium oscillations, as the pp2aB'1 mutant displays a normal calcium response. This contrasts with the application of high concentrations of ABA that impairs mycorrhizal factor-induced calcium oscillations, suggesting different modes of action of ABA on the AM symbiosis. Our work reveals that ABA functions at multiple levels to regulate the AM symbiosis and that a PP2A phosphatase is required for the ABA promotion of AM colonization.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.