ArticleScientific reports2023
The putative transporter MtUMAMIT14 participates in nodule formation in Medicago truncatula.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 16 citations in OpenAlex.
- Genome-Wide Identification of the Soybean UMAMIT Family and Functional Analysis ofInternational journal of molecular sciences · 2026Article
- Symbiosis-associated UMAMIT transporters required for establishing efficient nitrogen fixation in Medicago truncatula.The New phytologist · 2026Article
- Genome-wide identification of the UMAMIT gene family in Medicago sativa L. and analysis of the response of umamits mutant to abiotic stress.BMC plant biology · 2026Article
- Transcriptional Modulation in Grapevine by a Biostimulant Treatment for Improved Plant Resilience to Stress Events.Plants (Basel, Switzerland) · 2026Article
- Identification of candidate genes involved in root gall formation during early infection ofFrontiers in plant science · 2026Article
- New insights into the evolution and function of the UMAMIT (USUALLY MULTIPLE ACIDS MOVE IN AND OUT TRANSPORTER) gene family.Journal of plant research · 2025Article
- Article
- Characterization of genetic diversity and identification of genetic loci associated with carbon allocation in NBMC genomics · 2024Article
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Authors and funding
12 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Transport systems are crucial in many plant processes, including plant-microbe interactions. Nodule formation and function in legumes involve the expression and regulation of multiple transport proteins, and many are still uncharacterized, particularly for nitrogen transport. Amino acids originating from the nitrogen-fixing process are an essential form of nitrogen for legumes. This work evaluates the role of MtN21 (henceforth MtUMAMIT14), a putative transport system from the MtN21/EamA-like/UMAMIT family, in nodule formation and nitrogen fixation in Medicago truncatula. To dissect this transporter's role, we assessed the expression of MtUMAMIT14 using GUS staining, localized the corresponding protein in M. truncatula root and tobacco leaf cells, and investigated two independent MtUMAMIT14 mutant lines. Our results indicate that MtUMAMIT14 is localized in endosomal structures and is expressed in both the infection zone and interzone of nodules. Comparison of mutant and wild-type M. truncatula indicates MtUMAMIT14, the expression of which is dependent on the presence of NIN, DNF1, and DNF2, plays a role in nodule formation and nitrogen-fixation. While the function of the transporter is still unclear, our results connect root nodule nitrogen fixation in legumes with the UMAMIT family.
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