ArticlePlant physiology2013
Molecular and physiological analysis of Al³⁺ and H⁺ rhizotoxicities at moderately acidic conditions.
Article in Plant physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 76 citations in OpenAlex.
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- Characterization of AlPlanta · 2024Article
- Systematic Investigation of Aluminum Stress-Related Genes and Their Critical Roles in Plants.International journal of molecular sciences · 2024Review
- Laser-induced graphene electrochemical sensor for quantitative detection of phytotoxic aluminum ions (AlScientific reports · 2024Article
- STOP1-regulatedPlant direct · 2024Article
- Recent Updates on ALMT Transporters' Physiology, Regulation, and Molecular Evolution in Plants.Plants (Basel, Switzerland) · 2023Review
- Editorial: Al-Induced and -Activated Signals in Aluminium Resistance.Frontiers in plant science · 2022Article
- STOP1 activates NRT1.1-mediated nitrate uptake to create a favorable rhizospheric pH for plant adaptation to acidity.The Plant cell · 2021Article
- Genome-Wide Association Study of Natural Variation inPlants (Basel, Switzerland) · 2021Article
- Expression GWAS ofFrontiers in plant science · 2021Article
- The Class III Peroxidase Encoding GeneInternational journal of molecular sciences · 2020Article
- Dissection of Root Transcriptional Responses to Low pH, Aluminum Toxicity and Iron Excess Under Pi-Limiting Conditions in Arabidopsis Wild-Type andFrontiers in plant science · 2020Article
- Root Adaptation via Common Genetic Factors Conditioning Tolerance to Multiple Stresses for Crops Cultivated on Acidic Tropical Soils.Frontiers in plant science · 2020Review
- Genome-Wide Association Study and Genomic Prediction Elucidate the Distinct Genetic Architecture of Aluminum and Proton Tolerance inFrontiers in plant science · 2020Article
- Lipid remodeling under acidic conditions and its interplay with low Pi stress in Arabidopsis.Plant molecular biology · 2019Article
- Under phosphate starvation conditions, Fe and Al trigger accumulation of the transcription factor STOP1 in the nucleus of Arabidopsis root cells.The Plant journal : for cell and molecular biology · 2019Article
- Analysis of gene co-expression networks of phosphate starvation and aluminium toxicity responses in Populus spp.PloS one · 2019Article
- Low pH stress responsive transcriptome of seedling roots in wheat (Triticum aestivum L.).Genes & genomics · 2018Article
- Dark conditions enhance aluminum tolerance in several rice cultivars via multiple modulations of membrane sterols.Journal of experimental botany · 2018Article
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Authors and funding
9 authors at 6 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Al³⁺ and H⁺ toxicities predicted to occur at moderately acidic conditions (pH [water] = 5-5.5) in low-Ca soils were characterized by the combined approaches of computational modeling of electrostatic interactions of ions at the root plasma membrane (PM) surface and molecular/physiological analyses in Arabidopsis (Arabidopsis thaliana). Root growth inhibition in known hypersensitive mutants was correlated with computed {Al³⁺} at the PM surface ({Al³⁺}(PM)); inhibition was alleviated by increased Ca, which also reduced {Al³⁺}(PM) and correlated with cellular Al responses based on expression analysis of genes that are markers for Al stress. The Al-inducible Al tolerance genes ALUMINUM-ACTIVATED MALATE TRANSPORTER1 and ALUMINUM SENSITIVE3 were induced by levels of {Al³⁺}(PM) too low to inhibit root growth in tolerant genotypes, indicating that protective responses are triggered when {Al³⁺}(PM) was below levels that can initiate injury. Modeling of the H⁺ sensitivity of the SENSITIVE TO PROTON RHIZOTOXICITY1 knockout mutant identified a Ca alleviation mechanism of H⁺ rhizotoxicity, possibly involving stabilization of the cell wall. The phosphatidate phosphohydrolase1 (pah1) pah2 double mutant showed enhanced Al susceptibility under low-P conditions, where greater levels of negatively charged phospholipids in the PM occur, which increases {Al³⁺}(PM) through increased PM surface negativity compared with wild-type plants. Finally, we found that the nonalkalinizing Ca fertilizer gypsum improved the tolerance of the sensitive genotypes in moderately acidic soils. These findings fit our modeling predictions that root toxicity to Al³⁺ and H⁺ in moderately acidic soils involves interactions between both toxic ions in relation to Ca alleviation.
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