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Article

Toxicity of free proline revealed in an arabidopsis T-DNA-tagged mutant deficient in proline dehydrogenase.

Plant & cell physiology - 1 May 2003

Nanjo Tokihiko, Fujita Miki, Seki Motoaki, Kato Tomohiko, Tabata Satoshi, Shinozaki Kazuo

Abstract excerpt

The toxicity of proline (Pro) to plant growth has raised questions despite its protective functions in response to environmental stresses. To evaluate Pro toxicity, we isolated an Arabidopsis T-DNA-tagged mutant, pdh, that had a defect in Pro dehydrogenase (AtProDH), which catalyzes the first step of Pro catabolism. The pdh mutant showed hypersensitivity to exogenous application of < or =10 mM L-Pro, at which...

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Identifiers

PMID: 12773641
DOI: 10.1093/pcp/pcg066

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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