ArticlemBio2026
High-density microdroplet cultivation reveals the essential role of microbial interactions in the growth of environmental microbes.
Article in mBio, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
8 authors.
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Abstract
The significance of microbial interactions in nature is not well understood because of technical limitations in observing how individual microbial cells begin to grow within complex microbial community. To address this limitation for further solution of microbial uncultivability, we developed a gel microdroplet aggregate in oil (GMD-agg) cultivation method. This method provides a high cell density (>10 IMPORTANCE: The overwhelming majority of environmental microbes remain uncultured, limiting our understanding of their physiology and ecological roles. Although microbial interactions have been predicted as one of the key factors for the growth of uncultivable microbial types, the effect of these interactions on cultivability remains poorly understood. In this study, we developed a new droplet-based co-cultivation approach that promotes microbial interactions while maintaining pure cultures and enables growth tracking at the single-cell level. This method significantly improved cultivability (approximately 10 times), including the growth of taxa that are difficult to cultivate. Direct observation of microbial growth in the community using this method clearly demonstrated that microbial interactions are essential for the growth of diverse microbial types. These findings underscore the importance of microbial interactions in cultivation and offer a basis for radically expanding microbial bioresources, manipulating microbial communities, and exploring previously unrecognized microbial interactions.
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