Israeli researchers discover microbes coordinate activity to reduce competition

In a significant breakthrough, researchers at Ben-Gurion University of the Negev have unveiled how microbes, often perceived as simple organisms, engage in complex social interactions. Their study, featured in the prestigious journal Nature Microbiology, demonstrates that microbial communities are not merely passive collections of species but dynamic systems where organisms actively coordinate their activities. This coordination, driven by the detection of and response to neighboring microbes, allows for reduced competition and the stable coexistence of diverse species.

Led by Dr. Sarah Moraïs and supervised by Prof. Itzhak Mizrahi, the research challenges the traditional view that competition for resources is the primary factor governing microbial populations. Instead, the findings reveal that microbes can sense the presence and identity of their microbial neighbors, altering their protein production and functional roles in ways that can be more impactful than nutrient availability itself. This intricate dance of cooperation and task division is key to understanding how complex and stable microbiomes, essential for everything from human health to environmental processes, develop and persist.

The implications of this discovery extend far beyond basic science. Prof. Mizrahi highlighted the potential for designing more effective probiotics by selecting combinations of microbes that naturally divide functions, a stark contrast to current approaches. In agriculture, a deeper understanding of microbial organization could lead to improved feed efficiency and reduced emissions. Furthermore, the biotechnology sector could leverage these findings to develop sophisticated multi-microbe systems, moving beyond single engineered organisms. This research underscores Israel's continued contribution to cutting-edge scientific discovery, particularly in fields with profound global impact.

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A microbe is not defined only by its genome, which represents its potential, but also by its community. The same bacterium can behave very differently depending on who surrounds it.