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Nettle-induced metabolic changes in chive microgreens: first characterization of polyamine composition
Zorica Mrkonjić1, Marko Kebert2, Zorana Srećkov1
1Faculty of Ecological Agriculture, University Educons, Sremska Kamenica.
Natural Product Research
|July 7, 2026
Summary
Nettle extract influences polyamine levels in chive microgreens. Specific concentrations of nettle extract (Urtica dioica L.) can increase putrescine (PUT) or decrease all polyamines, suggesting biostimulant potential.
Area of Science:
- Plant Physiology
- Nutritional Biochemistry
- Agricultural Science
Background:
- Chives (Allium schoenoprasum L.) microgreens are recognized for their functional food potential.
- Limited data exists on the specific polyamine composition of chive microgreens.
- Polyamines are crucial for plant growth and development, influencing various metabolic pathways.
Purpose of the Study:
- To characterize the polyamine profile of chive microgreens.
- To investigate the effect of natural treatments, specifically nettle (Urtica dioica L.) extract, on polyamine accumulation.
- To explore the potential of nettle extract as a natural biostimulant for chive microgreens.
Main Methods:
- Chive microgreens were cultivated using distilled water and varying concentrations of nettle extract.
- Polyamine analysis was performed to quantify putrescine (PUT), spermidine (SPD), and spermine (SPM).
- Concentration-dependent effects of nettle extract on polyamine levels were assessed.
Main Results:
- Putrescine (PUT) was identified as the predominant polyamine in chive microgreens.
- Nettle extract significantly modulated polyamine concentrations in a dose-dependent manner.
- A concentration of 8 mg/mL nettle extract yielded the highest PUT levels (1857.91 nmol g⁻¹ DW), while 160 mg/mL reduced all quantified polyamines.
Conclusions:
- Nettle extract shows potential as a natural biostimulant for modulating nitrogen-related metabolic pathways in chive microgreens.
- The study provides novel insights into the polyamine profile of chive microgreens.
- Findings support the nutritional relevance and potential functional food applications of chive microgreens treated with nettle extract.
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