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Researchers take a closer look at the genomes of microbial communities in the human mouth phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.
E-Mail IMAGE: Micrograph showing Rothia cells (light blue) in their native habitat, a bacterial biofilm scraped from the human tongue. view more Credit: Photo credit: Jessica Mark Welch, Marine Biological Laboratory. Bacteria often show very strong biogeography - some bacteria are abundant in specific locations while absent from others - leading to major questions when applying microbiology to therapeutics or probiotics: how did the bacteria get into the wrong place? How do we add the right bacteria into the right place when the biogeography has gotten out of whack ? These questions, though, have one big obstacle, bacteria are so tiny and numerous with very diverse and complicated populations which creates major challenges to understanding which subgroups of bacteria live where and what genes or metabolic abilities allow them to thrive in these wrong places. ....
E-Mail From the perspective of A. Murat Eren, PhD, the mouth is the perfect place to study microbial communities. Not only is it the beginning of the GI tract, but it s also a very special and small environment that s microbially diverse enough that we can really start to answer interesting questions about microbiomes and their evolution, said Eren, an assistant professor in the Department of Medicine at the University of Chicago. There s a surprising amount of site specificity, in that you find defined patterns of microbes in different areas of the mouth the microbes associated with the tongue are very different from those on the plaque on your teeth, he continued. Your tongue microbes are more similar to those living on someone else s tongue than they are to those living in your throat or on your gums! ....