ArticlePlant molecular biology2025
NnMTP10 from Nelumbo nucifera acts as a transporter mediating manganese and iron efflux.
Article in Plant molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Overexpression of LotusPlants (Basel, Switzerland) · 2026Article
- Jasmonic Acid and Salicylic Acid in Regulating Plant Cadmium Accumulation and Tolerance: Mechanisms and Crosstalk.Plants (Basel, Switzerland) · 2026Review
- Transcriptomic Profiling Reveals the Involvement of the Phenylpropanoid-Lignin Pathway in the Response of Maize Roots to Zinc Stress.Plants (Basel, Switzerland) · 2025Article
- Genomic characterisation of the metal tolerance protein gene family and elucidation of functional role in heavy metal tolerance and accumulation inFrontiers in plant science · 2025Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Deficiency or excess of mineral elements in the environment is a primary factor limiting crop yields and nutritional quality. Lotus (Nelumbo nucifera) is an important aquatic crop in Asia, but the mechanism for accumulating mineral nutrients and coping with nutrient deficiency/excess is still largely unknown. Here, we identified NnMTP10, a member of the cation diffusion facilitator family, by screening the cDNA library of lotus. Subcellular localization to the plasma membrane, increased manganese (Mn) and iron (Fe) tolerance and reduced metal accumulation in yeast transformants demonstrated that the protein functions as an exporter to mediate the efflux of Mn and Fe. Arabidopsis overexpressing NnMTP10 exhibited less Mn accumulation in roots, increased long-distance transport to shoots, and increased tolerance to Mn stress under high-Mn conditions. However, the accumulation and tolerance of Fe in Arabidopsis transformants are opposite to those of Mn. Further analysis revealed that excessive Fe in the root apoplast exported by NnMTP10 was sequestrated by the cell wall, thereby reducing the transport of Fe to the shoot. Correspondingly, the expression of NnMTP10 in the roots of lotus was increased under the high-Mn treatment but decreased under the high-Fe treatment. These results suggest that NnMTP10 is involved in the long-distance transport of Mn and Fe in lotus and may play a role in coordinating the adaptation to stresses caused by excessive Mn and Fe.
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Registered trials
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