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Mutation of a nitrate transporter, AtNRT1:4, results in a reduced petiole nitrate content and altered leaf development.

Plant & cell physiology - 1 Sept 2004

Chiu Chi-Chou, Lin Choun-Sea, Hsia An-Ping, Su Ruey-Chih, Lin Huey-Ling, Tsay Yi-Fang

Abstract excerpt

Unlike nitrate uptake of plant roots, less is known at the molecular level about how nitrate is distributed in various plant tissues. In the present study, characterization of the nitrate transporter, AtNRT1:4, revealed a special role of petiole in nitrate homeostasis. Electrophysiological studies using Xenopus oocytes showed that AtNRT1:4 was a low-affinity nitrate transporter. Whole-mount in situ hybridization...

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PMID: 15509836
DOI: 10.1093/pcp/pch143

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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