<i>Pseudomonas</i> sp. Strain ADAl3-4 Enhances Aluminum Tolerance in Alfalfa (<i>Medicago sativa</i>).

ABSTRACT: Aluminum toxicity severely inhibits root elongation and nutrient uptake, causing global agricultural yield losses. Dissolved Al³⁺ are accumulating in plants and subsequently entering food chains via crops and forage plants. Chronic dietary exposure to Al³⁺ poses a risk to human health. In this study, Pseudomonas sp. strain ADAl3-4, isolated from plant rhizosphere soil, significantly enhanced plant development and biomass. Phenotypic validation using Arabidopsis mutants showed that strain ADAl3-4 regulates plant growth and development under aluminum stress by reprogramming the cell cycle, regulating auxin and ion homeostasis, and enhancing the root absorption of Al³⁺ from the soil. Transcriptomic and biochemical analyses showed that strain ADAl

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC12111897 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature