Don't panic, this rainbow is a microbe on your tongue

are everywhere in our guts and mouths. A study published in Cell Reports found that "peers" who live on our tongues are not randomly mixed, but rather seem to prefer to live with their peers and divide into different groups according to their race.
researchers first scratched the tongues of 21 healthy volunteers, and then used fluorescent markers to identify specific groups of bacteria, some of which provided us with nutrients. In this way, the researchers were able to see exactly where each bacteria was on the surface of the tongue.
, the bacteria, without exception, form a cluster of the same species that is tightly bounded and clearly bounded.
under the microscope, these clusters are like a microbial rainbow. In the picture, for example, red line bacteria grow near the skin tissue of the tongue (the gray part of the picture), while cyan-colored Rothella forms long patches between other groups. Green streptococcus forms thin skins on the edge of the tongue and elongation veins inside.
looking at these images, researchers can guess how the steriles were built and how they grew over time.
, although scientists have learned from DNA sequencing what microbes exist in the human body, this is the first time they have observed the microbiome of the tongue in such detail. Looking at where different species gather and how they organize themselves provides a deeper understanding of how bacteria work and how they interact with each other, the researchers said.
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