Nanotech coatings could help friendly soil bacteria survive and work better
Roy S, Chandra S
Soil Health
The healthy, crumbly soil in your garden beds is alive with bacteria that trade nutrients for sugar with your plants' roots, and this review explains how scientists are learning to protect and deploy those microscopic allies more reliably instead of losing them to wind, heat, or UV light before they ever reach the soil.
Certain friendly bacteria that live around plant roots act like tiny helpers: they pull nitrogen from the air, dissolve locked-up phosphorus, release iron-grabbing compounds, and even warn plants to boost their immune defenses before disease strikes. The problem is these bacteria often die or wash away before they can do their job. Researchers are now exploring nano-sized capsules and coatings that shield these bacteria and release them slowly and precisely, which could make eco-friendly farming more reliable than relying on chemical fertilizers and pesticides.
Key Findings
PGPR use both direct mechanisms (phosphate solubilization, nitrogen fixation, ACC deaminase activity, hydrogen cyanide and siderophore production) and indirect mechanisms (induced systemic resistance and systemic acquired resistance) to promote plant growth and health
Applying PGPR as single strains or multi-strain consortia, combined with omics-based approaches, improves crop performance and resilience across varied conditions
Major limitations include PGPR loss during aerial application and die-off under environmental stress, which nanotechnology-based controlled-release delivery systems are being developed to overcome
chevron_right Technical Summary
Soil bacteria that naturally help plants grow by fixing nitrogen, unlocking phosphate, and fighting off disease could become even more effective when paired with nanotechnology, which protects them during spraying and releases them exactly where and when crops need them.
Abstract Preview
Original paper
Plant growth promoting rhizobacteria and nanotechnology: emerging perspectives and functional roles for climate resilient sustainable agriculture.
This review highlights the pivotal role of Plant Growth Promoting Rhizobacteria (PGPR) in association with nanotechnology for enhancing plant growth and health. It narratively discusses diverse PGP...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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