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Human microbiota are microorganisms (bacteria, viruses, fungi and archaea) found in a specific environment. They can be found in the stomach, intestines, skin, genitals and other parts of the body. [1] Various body parts have diverse microorganisms. Some microbes are specific to certain body parts and others are associated with many microbiomes.
Graphic depicting the human skin microbiota, with relative prevalences of various classes of bacteria. The human microbiome is the aggregate of all microbiota that reside on or within human tissues and biofluids along with the corresponding anatomical sites in which they reside, [1] [2] including the gastrointestinal tract, skin, mammary glands, seminal fluid, uterus, ovarian follicles, lung ...
Fungi host endohyphal bacteria; [112] the effects of the bacteria are not well studied. Many such fungi in turn live within plants. [112] These fungi are otherwise known as fungal endophytes. It is hypothesized that the fungi offers a safe haven for the bacteria, and the diverse bacteria that they attract create a micro-ecosystem. [113]
Cholera (caused by Vibrio cholerae bacteria) and bubonic plague, or the Black Death (caused by the bacterium Yersinia pestis) are some of the most famous examples of how devastating a pandemic can be.
While tetanus toxin is produced from Clostridium tetani, a spore forming bacteria found in soil, Tetanus is a paralytic disease that is global and commonly affects newborns as well as non-immunized individuals. Tetanus enters the body of organisms through wounds or skin breaks and can be found in manure, soil, and dust.
Microorganisms including bacteria, [58] [59] fungi, and viruses are important as plant pathogens, causing disease to crop plants. Fungi cause serious crop diseases such as maize leaf rust, wheat stem rust, and powdery mildew. Bacteria cause plant diseases including leaf spot and crown galls. Viruses cause plant diseases such as leaf mosaic.
A lichen consists of a body formed mainly by fungi, with unicellular algae or cyanobacteria (green) interspersed within the structure, and a bacterial microbiome. The species are mutually interdependent, like cells within a multicellular organism. [21]
And because bacteria can adapt over time, overuse of antibiotics has created more and more bacterial strains that resist treatment. While bacterial and viral infections are different, they’re ...