Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium Supply
Ammonium (NH<sub>4</sub><sup>+</sup>) is an essential nitrogen source for plants, but excessive exposure can trigger stress responses that vary among and within different plant species. This study investigated the phenotypic variations in response to ammonium nutrition in fiv...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/15/2819 |
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| author | Marlon De la Peña Rodrigo Ruiz-Romero Hernán Mauricio Romero |
| author_facet | Marlon De la Peña Rodrigo Ruiz-Romero Hernán Mauricio Romero |
| author_sort | Marlon De la Peña |
| collection | DOAJ |
| description | Ammonium (NH<sub>4</sub><sup>+</sup>) is an essential nitrogen source for plants, but excessive exposure can trigger stress responses that vary among and within different plant species. This study investigated the phenotypic variations in response to ammonium nutrition in five oil palm genotypes seedlings. Nitrate nutrition was used as a reference for a non-stressful condition, and three different nitrogen concentrations (5, 10, and 15 mM) were examined. Control groups without external nitrogen application were included for each genotype. Several parameters were analyzed, including plant growth, root length, gas exchange, fluorescence, chlorophyll, reducing sugars, amino acids, proteins, and nitrogen uptake. The results revealed a significant genotype effect, particularly between the interspecific OxG hybrid and the <i>Elaeis guinensis</i> genotypes. Ammonium nutrition increased shoot growth in all genotypes compared to nitrate nutrition. Additionally, there was a trend towards increased primary root length, amino acids, proteins, and nitrogen uptake under ammonium supply. These findings are promising, particularly considering the recommendation to use ammonium with inhibitors for environmental sustainability. |
| first_indexed | 2024-03-11T00:18:57Z |
| format | Article |
| id | doaj.art-f2e08b78af654aecb01df406815609ea |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T00:18:57Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-f2e08b78af654aecb01df406815609ea2023-11-18T23:26:18ZengMDPI AGPlants2223-77472023-07-011215281910.3390/plants12152819Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium SupplyMarlon De la Peña0Rodrigo Ruiz-Romero1Hernán Mauricio Romero2Oil Palm Biology and Breeding Research Program, Colombian Oil Palm Research Center—Cenipalma, Bogotá 11121, ColombiaOil Palm Biology and Breeding Research Program, Colombian Oil Palm Research Center—Cenipalma, Bogotá 11121, ColombiaOil Palm Biology and Breeding Research Program, Colombian Oil Palm Research Center—Cenipalma, Bogotá 11121, ColombiaAmmonium (NH<sub>4</sub><sup>+</sup>) is an essential nitrogen source for plants, but excessive exposure can trigger stress responses that vary among and within different plant species. This study investigated the phenotypic variations in response to ammonium nutrition in five oil palm genotypes seedlings. Nitrate nutrition was used as a reference for a non-stressful condition, and three different nitrogen concentrations (5, 10, and 15 mM) were examined. Control groups without external nitrogen application were included for each genotype. Several parameters were analyzed, including plant growth, root length, gas exchange, fluorescence, chlorophyll, reducing sugars, amino acids, proteins, and nitrogen uptake. The results revealed a significant genotype effect, particularly between the interspecific OxG hybrid and the <i>Elaeis guinensis</i> genotypes. Ammonium nutrition increased shoot growth in all genotypes compared to nitrate nutrition. Additionally, there was a trend towards increased primary root length, amino acids, proteins, and nitrogen uptake under ammonium supply. These findings are promising, particularly considering the recommendation to use ammonium with inhibitors for environmental sustainability.https://www.mdpi.com/2223-7747/12/15/2819nitrogen use efficiencygrowthmetabolitesammonium tolerance |
| spellingShingle | Marlon De la Peña Rodrigo Ruiz-Romero Hernán Mauricio Romero Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium Supply Plants nitrogen use efficiency growth metabolites ammonium tolerance |
| title | Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium Supply |
| title_full | Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium Supply |
| title_fullStr | Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium Supply |
| title_full_unstemmed | Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium Supply |
| title_short | Nitrogen Use Efficiency in Oil Palm Seedlings: Unraveling the Untapped Potential of Elevated External Ammonium Supply |
| title_sort | nitrogen use efficiency in oil palm seedlings unraveling the untapped potential of elevated external ammonium supply |
| topic | nitrogen use efficiency growth metabolites ammonium tolerance |
| url | https://www.mdpi.com/2223-7747/12/15/2819 |
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