articleFrontiers in Plant ScienceJan 12, 2026GOLD OA

Microalgae and cyanobacteria as a tool for agricultural sustainability: a review of biofertilizer and biostimulant potential

Yantai University · Hexi University · +2 more institutions

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Abstract

Microalgae and cyanobacteria are emerging as sustainable alternatives to chemical fertilizers and pesticides, offering nutrient recycling, stress mitigation, and environmental restoration within the framework of circular bioeconomy. This review synthesizes recent advances in the utilization of cyanobacteria and green microalgae as biofertilizers, biostimulants, and biopesticides, emphasizing their physiological mechanisms and agronomic potential. Microalgae and cyanobacteria can fix atmospheric nitrogen, solubilize phosphorus, and supply essential micronutrients through exopolysaccharides, organic acids, and siderophores, thereby improving soil fertility and structure. Their metabolites, including…

Citation impact

7
total citations
FWCI
26.23
Percentile
100%
References
114
Too recent for citation history.

Authors

6

Topics & keywords

Keywords
  • Biofertilizer
  • Biomass (ecology)
  • Cyanobacteria
  • Nutrient
  • Agriculture
  • Sustainable agriculture
  • Soil fertility
  • Biofuel
UN Sustainable Development Goals
  • Zero hunger
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