Molybdenum supply increases 15N-nitrate uptake by maize
Nitrogen (N) is widely used in maize (Zea mays L.) production. The supply of molybdenum (Mo) can increase the recovery of N by the plant due to the role of this micronutrient in the assimilation of nitrate through nitrate reductase (NR). We aimed to evaluate N metabolism and auxiliary measurements i...
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Frontiers Media S.A.
2025-04-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2025.1546132/full |
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| author | Lílian A. Moreira Lílian A. Moreira Merle Tränkner Eduardo Mariano Rafael Otto |
| author_facet | Lílian A. Moreira Lílian A. Moreira Merle Tränkner Eduardo Mariano Rafael Otto |
| author_sort | Lílian A. Moreira |
| collection | DOAJ |
| description | Nitrogen (N) is widely used in maize (Zea mays L.) production. The supply of molybdenum (Mo) can increase the recovery of N by the plant due to the role of this micronutrient in the assimilation of nitrate through nitrate reductase (NR). We aimed to evaluate N metabolism and auxiliary measurements in maize as affected by combined N and Mo omission or supply under controlled conditions. Plants were grown for 28 d in a nutrient solution without Mo and N, with Mo and N, and under the omission of Mo or N. The treatments with omission received nutrients with foliar application or via nutrient solution after 28 d. Gas exchange, chlorophyll and anthocyanins indexes, and N accumulation were evaluated at 28, 35, and 44 d after transplanting (DAT). The amino acid profile was altered due to Mo and N supply to the plants, as well as the uptake and accumulation of nitrate. The highest biomass production was quantified in the positive control, supplied by the nutrient solution and later by the absence of Mo, being the foliar application inferior to this treatment. Maize biomass, with the omission of N and Mo, was 31 % lower than the supply of both nutrients. Molybdenum favors nitrate uptake by maize, mainly when supplied through the nutrient solution. |
| format | Article |
| id | doaj-art-4865d94e7aed4366a7128f4b5458db22 |
| institution | OA Journals |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj-art-4865d94e7aed4366a7128f4b5458db222025-08-20T02:08:26ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-04-011610.3389/fpls.2025.15461321546132Molybdenum supply increases 15N-nitrate uptake by maizeLílian A. Moreira0Lílian A. Moreira1Merle Tränkner2Eduardo Mariano3Rafael Otto4Luiz de Queiroz College of Agriculture, University of São Paulo, Department of Soil Science, Piracicaba, São Paulo, BrazilInstitute of Applied Plant Nutrition, University of Göttingen, Göttingen, GermanyInstitute of Applied Plant Nutrition, University of Göttingen, Göttingen, GermanyLaboratory of Stable Isotope, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilLuiz de Queiroz College of Agriculture, University of São Paulo, Department of Soil Science, Piracicaba, São Paulo, BrazilNitrogen (N) is widely used in maize (Zea mays L.) production. The supply of molybdenum (Mo) can increase the recovery of N by the plant due to the role of this micronutrient in the assimilation of nitrate through nitrate reductase (NR). We aimed to evaluate N metabolism and auxiliary measurements in maize as affected by combined N and Mo omission or supply under controlled conditions. Plants were grown for 28 d in a nutrient solution without Mo and N, with Mo and N, and under the omission of Mo or N. The treatments with omission received nutrients with foliar application or via nutrient solution after 28 d. Gas exchange, chlorophyll and anthocyanins indexes, and N accumulation were evaluated at 28, 35, and 44 d after transplanting (DAT). The amino acid profile was altered due to Mo and N supply to the plants, as well as the uptake and accumulation of nitrate. The highest biomass production was quantified in the positive control, supplied by the nutrient solution and later by the absence of Mo, being the foliar application inferior to this treatment. Maize biomass, with the omission of N and Mo, was 31 % lower than the supply of both nutrients. Molybdenum favors nitrate uptake by maize, mainly when supplied through the nutrient solution.https://www.frontiersin.org/articles/10.3389/fpls.2025.1546132/fullamino acidsmolybdatenitrateammoniumphotosynthesisfertilizers |
| spellingShingle | Lílian A. Moreira Lílian A. Moreira Merle Tränkner Eduardo Mariano Rafael Otto Molybdenum supply increases 15N-nitrate uptake by maize Frontiers in Plant Science amino acids molybdate nitrate ammonium photosynthesis fertilizers |
| title | Molybdenum supply increases 15N-nitrate uptake by maize |
| title_full | Molybdenum supply increases 15N-nitrate uptake by maize |
| title_fullStr | Molybdenum supply increases 15N-nitrate uptake by maize |
| title_full_unstemmed | Molybdenum supply increases 15N-nitrate uptake by maize |
| title_short | Molybdenum supply increases 15N-nitrate uptake by maize |
| title_sort | molybdenum supply increases 15n nitrate uptake by maize |
| topic | amino acids molybdate nitrate ammonium photosynthesis fertilizers |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2025.1546132/full |
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