ArticleScientific reports2023
Nordic microalgae produce biostimulant for the germination of tomato and barley seeds.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 36 citations in OpenAlex.
- Article
- Engineering Plant-Associated Microorganisms for Bioremediation and Sustainable Agriculture.Microorganisms · 2026Review
- Microalgae-Based Biostimulants: Effects on Growth and Stress Resistance in Agricultural Crops.Plants (Basel, Switzerland) · 2025Review
- Plant growth-promoting microbes and microalgae-based biostimulants: sustainable strategy for agriculture and abiotic stress resilience.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Harnessing dairy wastewater to cultivateFrontiers in plant science · 2025Article
- Physiological Effects and Mechanisms ofPlants (Basel, Switzerland) · 2024Article
- Isolation and Selection of Protein-Rich Mutants ofPlants (Basel, Switzerland) · 2024Article
- Article
- Plant-Based Biostimulants for Seeds in the Context of Circular Economy and Sustainability.Plants (Basel, Switzerland) · 2024Review
- A Comprehensive Review of Microalgae and Cyanobacteria-Based Biostimulants for Agriculture Uses.Plants (Basel, Switzerland) · 2024Review
- Integrating microalgae-based wastewater treatment, biostimulant production, and hydroponic cultivation: a sustainable approach to water management and crop production.Frontiers in bioengineering and biotechnology · 2024Article
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microalgal biomass may have biostimulating effects on plants and seeds due to its phytohormonal content, and harnessing this biostimulating effect could contribute to sustainable agriculture. Two Nordic strains of freshwater microalgae species Chlorella vulgaris and Scenedesmus obliquus were each cultivated in a photobioreactor receiving untreated municipal wastewater. The algal biomass and the supernatant after algal cultivation were tested on tomato and barley seeds for biostimulating effects. Intact algal cells, broken cells, or harvest supernatant were applied to the seeds, and germination time, percentage and germination index were evaluated. Seeds treated with C. vulgaris, in particular intact cells or supernatant, had up to 25 percentage units higher germination percentage after 2 days and an overall significantly faster germination time (germinated on average between 0.5 and 1 day sooner) than seeds treated with S. obliquus or the control (water). The germination index was higher in C. vulgaris treatments than in the control for both tomato and barley, and this was observed for both broken and intact cells as well as supernatant. The Nordic strain of C. vulgaris cultivated in municipal wastewater thus shows potential for use as biostimulant in agriculture, adding novel economic and sustainability benefits.
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