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Self-Assembled Nanocoatings Protect Microbial Fertilizers for Climate-Resilient Agriculture
- Source :
- JACS Au; 20230101, Issue: Preprints
- Publication Year :
- 2023
-
Abstract
- Chemical fertilizers have been crucial for sustaining the current global population by supplementing overused farmland to support consistent food production, but their use is unsustainable. Pseudomonas chlororaphisis a nitrogen-fixing bacterium that could be used as a fertilizer replacement, but this microbe is delicate. It is sensitive to stressors, such as freeze-drying and high temperatures. Here, we demonstrate protection of P. chlororaphisfrom freeze-drying, high temperatures (50 oC), and high humidity using self-assembling metal-phenolic network (MPN) coatings. The composition of the MPN is found to significantly impact its protective efficacy, and with optimized compositions, no viability loss is observed for MPN-coated microbes under conditions where uncoated cells do not survive. Further, we demonstrate that MPN-coated microbes improve germination of seeds by 150% as compared to those treated with fresh P. chlororaphis. Taken together, these results demonstrate the protective capabilities of MPNs against environmental stressors and represent a critical step towards enabling the production and storage of delicate microbes under nonideal conditions.
Details
- Language :
- English
- ISSN :
- 26913704
- Issue :
- Preprints
- Database :
- Supplemental Index
- Journal :
- JACS Au
- Publication Type :
- Periodical
- Accession number :
- ejs64358785
- Full Text :
- https://doi.org/10.1021/jacsau.3c00426