ArticleMicroorganisms2026
Assessment of Stability of Preservation Techniques for Strawberry Soil Microbiomes: Exploring the Biotechnological Relevance for Sustainable Agriculture.
Article in Microorganisms, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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15 authors.
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Abstract
Preserving ex situ soil microbial communities is essential for bacterial biodiversity conservation in microbiome biobanking, accurate microbiome research, and future biotechnological applications in sustainable agriculture. The effect of three soil preservation methods-cryopreservation at -80 °C, refrigeration at 4 °C, and lyophilization-on the viability, diversity and metabolic functionality of the soil microbiome was evaluated using soil from untreated and solarized strawberry fields stored at 0, 6 and 12 months. Microbial viability, ecological strategies, functionality, and diversity were assessed using plate counts, r/K strategist profiling, BIOLOG EcoPlates, and 16S rRNA/ITS gene amplicon-based sequencing, respectively. Cryopreservation outperformed the other preservation strategies by generally maintaining total bacterial counts, especially in control soil, preserving the balance between oligotrophic and copiotrophic communities, and sustaining high alpha diversity indices over 12 months. Refrigeration provided moderate preservation, though microbial viability and community stability declined over time. In contrast, lyophilization significantly reduced microbial abundance, altered community composition, and diminished metabolic diversity and substrate utilization. Beta diversity analyses confirmed that cryopreserved samples remained similar in microbial structure to the initial timepoint, while lyophilized samples diverged substantially. Functional analyses also revealed reduced metabolic activity in lyophilized soils, underscoring the negative impact on the microbiome's ecological roles. Overall, the results of this study identify cryopreservation as the most effective storage method for maintaining soil microbiome integrity, providing critical guidance for preserving soil samples in microbiome research and sustainable agricultural biotechnology.
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