Scanning electron micrograph (SEM) of Streptococcus gordonii. This Gram-positive bacterium colonizes the gum and surrounding periodontal areas in the mouth. It forms a large proportion of the bacterial biofilm that develops on the surfaces of clean teeth, also known as dental plaque. Streptococcus gordonii is a non-pathogenic organism of the genus Strepotococci and grows in pairs or bead-like chains. S. gordonii plays an integral role in initiating colonization by creating surfaces for other colonizers to adhere to. Eventually dental biofilms lead to periodontal disease and dental cavities. Magnification is 12, 500x at 15cm image size. | |
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Crédit: | Science Photo Library / Science Source / Nano Creative |
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