Microalgae-Bacteria Interactions in the Bio-based Circular Economy: Mechanisms and Biotechnological Applications.
Romy C, Neehara JV, Veerabadhran M, Subramani N, Perumal K
Soil Health
Bacteria-algae partnerships described could one day make the fertilizers, fish feed, and biofuels we rely on far cheaper and cleaner to produce, reducing the environmental footprint of the food on your plate.
Scientists have found that tiny algae and bacteria work together in surprisingly helpful ways — bacteria release natural growth boosters that help algae thrive, while the algae provide food and shelter for the bacteria in return. This teamwork lets the pair grow in wastewater instead of clean water, soaking up pollution while producing useful stuff like proteins, pigments, and oils. Growing them together is also cheaper and more reliable than growing algae alone, making the whole process more practical for large-scale use.
Key Findings
Bacteria produce growth-stimulating compounds like indole-3-acetic acid (IAA), vitamins, and siderophores that directly boost microalgae biomass, protein, pigment, lipid, and carbohydrate production.
Microalgae-bacteria consortia can grow on wastewater in non-arable land, simultaneously remediating nutrient pollution and generating biomass valuable for bioenergy and pharmaceuticals.
Co-cultivation outperforms monocultures by reducing contamination risk, improving cost-effectiveness, and enhancing the diversity and health of surrounding soil microbiomes.
chevron_right Technical Summary
Pairing microalgae with bacteria in co-cultivation systems supercharges algae growth, cleans up wastewater, and produces valuable compounds for food, fuel, and medicine — all at lower cost than growing algae alone.
Abstract Preview
Prokaryotic cyanobacteria and eukaryotic microalgae are promising photosynthetic microorganisms that convert solar energy to biomass which is commercially being used for food, dietary supplements, ...
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