ArticleScientific reports2025
Lanthanum nitrate enhances aroma precursors of tobacco leaves via influencing chemical components and photosynthetic characteristics.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Shaking and withering intensity from oolong tea processing alters the chemical and sensory quality of tobacco.Scientific reports · 2026Article
- Deciphering the mechanism of light quality regulating the quality of sun-cured yellow tobacco based on GC-MS non-targeted metabolomics.Frontiers in plant science · 2026Article
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8 authors.
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Abstract
Aroma precursors are key biochemical factors determining the aroma quality of flue-cured tobacco (Nicotiana tabacum L.). While rare earth elements (REEs) are known to enhance tobacco growth, their role in the biosynthesis of aroma precursors and overall quality remains insufficiently understood. In this study, a controlled pot experiment was conducted using flue-cured tobacco treated with a gradient of lanthanum nitrate [La(NO₃)₃] solutions (0, 25, 50, 90, 130, and 170 mg L⁻¹) applied via foliar spraying to systematically evaluate dose-dependent effects. The impacts of these treatments on aroma precursors, photosynthetic characteristics, chemical components, and agronomic traits were assessed. A hormetic concentration-dependent response showed: 25-90 mg L⁻¹ lanthanum nitrate significantly increased the content of polyphenols, plastid pigments, and chemical components, while improving photosynthetic efficiency and promoting shoot and root growth. However, supraoptimal concentrations above 130 mg L
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