Alex A. Kröper, Sabine Zikeli, Monika A. Wimmer, Christian Zörb
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Lentils can Absorb Amino Acids as a Nitrogen Source Supporting Early Growth
Background
Lentils (Lens culinaris Medik.) are a valuable crop due to their high nutritional content, low environmental impact, and nitrogen-fixing ability via rhizobacteria. Early in development, before this symbiosis is established, lentils require external nitrogen, typically supplied through fertilizers or already present in soils.
Aim
This study explores whether lentils can utilize amino acids as a nitrogen source and how amino acid supplementation affects growth and nitrate uptake.
Results
The findings show that lentils can absorb amino acids from soil, with no adverse effects on growth compared to mineral N fertilizers. The amino acid patterns show only slight changes in individual amino acids. NPF/NRT1, NRT2, AMT2, and DUR3 were expressed in all treatments in root tissue. LHT1 plays a minor role in the distribution of N in the shoots of lentil plants.
Conclusion
Although amino acid uptake is less efficient than that of nitrate, it may still benefit young plants in organic farming until rhizobacterial symbiosis is established.
期刊介绍：
Established in 1922, the Journal of Plant Nutrition and Soil Science (JPNSS) is an international peer-reviewed journal devoted to cover the entire spectrum of plant nutrition and soil science from different scale units, e.g. agroecosystem to natural systems. With its wide scope and focus on soil-plant interactions, JPNSS is one of the leading journals on this topic. Articles in JPNSS include reviews, high-standard original papers, and short communications and represent challenging research of international significance. The Journal of Plant Nutrition and Soil Science is one of the world’s oldest journals. You can trust in a peer-reviewed journal that has been established in the plant and soil science community for almost 100 years.
Journal of Plant Nutrition and Soil Science (ISSN 1436-8730) is published in six volumes per year, by the German Societies of Plant Nutrition (DGP) and Soil Science (DBG). Furthermore, the Journal of Plant Nutrition and Soil Science (JPNSS) is a Cooperating Journal of the International Union of Soil Science (IUSS). The journal is produced by Wiley-VCH.
Topical Divisions of the Journal of Plant Nutrition and Soil Science that are receiving increasing attention are:
JPNSS – Topical Divisions
Special timely focus in interdisciplinarity:
- sustainability & critical zone science.
Soil-Plant Interactions:
- rhizosphere science & soil ecology
- pollutant cycling & plant-soil protection
- land use & climate change.
Soil Science:
- soil chemistry & soil physics
- soil biology & biogeochemistry
- soil genesis & mineralogy.
Plant Nutrition:
- plant nutritional physiology
- nutrient dynamics & soil fertility
- ecophysiological aspects of plant nutrition.
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