ArticleFrontiers in plant science2026
Glutamine alleviates the toxicity of externally applied amino acids in Arabidopsis.
Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Plants use amino acids not only as building blocks for protein synthesis, but also as nitrogen carriers between the various organs and as precursors of a plethora of specialized compounds that fulfill essential functions ranging from structural roles to interaction with other organisms. Feedback regulation of amino acid metabolic enzymes is well studied in plants and has been accepted as a main regulatory mechanism of pathway activity. Studies in Results and discussion: The present study established an Arabidopsis-based framework to further study the mechanisms controlling the activity of amino acid metabolic pathways. In this context, we determined with precision the toxicity of each amino acid on Arabidopsis plants grown in solid and liquid media. The level of toxicity varied between 0.3 and 4 mM, depending on the amino acid, with some amino acids found non-toxic at concentrations up to 20 mmol.l
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