ArticlePlant physiology2000
Genotypical differences in aluminum resistance of maize are expressed in the distal part of the transition zone. Is reduced basipetal auxin flow involved in inhibition of root elongation by aluminum?
Article in Plant physiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.
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71 citing papers in PubMed.
- Hormonal Status and the Probable Role of Phytohormones in Response of Pea Cultivar Sparkle and Mutant E107 (Plants (Basel, Switzerland) · 2026Article
- A novel SlSTOP1-SlHAK5-cytosolic pH feedback loop drives dual adaptation to proton and aluminum toxicity in tomato.Horticulture research · 2025Article
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- Genetic dissection of seedling root architecture under aluminium toxicity in tropical maize (Frontiers in plant science · 2025Article
- Aluminium stress tolerance byPhysiology and molecular biology of plants : an international journal of functional plant biology · 2024Review
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- Aluminum-Immobilizing Rhizobacteria Modulate Root Exudation and Nutrient Uptake and Increase Aluminum Tolerance of Pea Mutant E107 (Plants (Basel, Switzerland) · 2023Article
- Research Advances in the Mutual Mechanisms Regulating Response of Plant Roots to Phosphate Deficiency and Aluminum Toxicity.International journal of molecular sciences · 2022Review
- Identification and characterization of long noncoding RNAs involved in the aluminum stress response inFrontiers in plant science · 2022Article
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- Identification of an ATP-Binding Cassette Transporter Implicated in Aluminum Tolerance in Wild Soybean (International journal of molecular sciences · 2021Article
- The Efficient and Easy Micropropagation Protocol ofPlants (Basel, Switzerland) · 2021Article
- Transition Zone1 Negatively RegulatesFrontiers in plant science · 2021Article
- Physiological, Biochemical, and Transcriptomic Responses ofInternational journal of molecular sciences · 2020Article
- Molecular Mechanisms Underlying Sugarcane Response to Aluminum Stress by RNA-Seq.International journal of molecular sciences · 2020Article
- AtHB7/12 Regulate Root Growth in Response to Aluminum Stress.International journal of molecular sciences · 2020Article
- Root Adaptation via Common Genetic Factors Conditioning Tolerance to Multiple Stresses for Crops Cultivated on Acidic Tropical Soils.Frontiers in plant science · 2020Review
- How Plants Handle Trivalent (+3) Elements.International journal of molecular sciences · 2019Review
- Nitric oxide precursors prevent Al-triggered auxin flow inhibition inJournal of advanced research · 2019Article
11 more citing papers are in PubMed but not listed here.
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3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Short-term Al treatment (90 microM Al at pH 4.5 for 1 h) of the distal transition zone (DTZ; 1-2 mm from the root tip), which does not contribute significantly to root elongation, inhibited root elongation in the main elongation zone (EZ; 2.5-5 mm from the root tip) to the same extent as treatment of the entire maize (Zea mays) root apex. Application of Al to the EZ had no effect on root elongation. Higher genotypical resistance to Al applied to the entire root apex, and specifically to the DTZ, was expressed by less inhibition of root elongation, Al accumulation, and Al-induced callose formation, primarily in the DTZ. A characteristic pH profile along the surface of the root apex with a maximum of pH 5.3 in the DTZ was demonstrated. Al application induced a substantial flattening of the pH profile moreso in the Al-sensitive than in the Al-resistant cultivar. Application of indole-3-acetic acid to the EZ but not to the meristematic zone significantly alleviated the inhibition of root elongation induced by the application of Al to the DTZ. Basipetal transport of exogenously applied [(3)H]indole-3-acetic acid to the meristematic zone was significantly inhibited by Al application to the DTZ in the Al-sensitive maize cv Lixis. Our results provide evidence that the primary mechanisms of genotypical differences in Al resistance are located within the DTZ, and suggest a signaling pathway in the root apex mediating the Al signal between the DTZ and the EZ through basipetal auxin transport.
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