- Brief Summary
Microorganism Glossary give introductions on some kinds of Microorganisms.A microorganism or microbe is a microscopic organism,which may be a single cell or multicellular organism.Microorganisms are very diverse; they include all of the prokaryotes,namely the bacteria and archaea; and various forms of eukaryotes, comprising the protozoa,fungi,algae,microscopic plants (green algae), and animals such as rotifers and planarians.Some microbiologists also classify viruses as microorganisms, but others consider these as nonliving.
- Bacterial Cell:
Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most habitats on the planet. Bacteria inhabit soil, water, acidic hot springs, radioactive waste,and the deep portions of Earth's crust. Bacteria also live in plants, animals,and have survived in space.Generalized Bacterial Cell Structure introduced.more.
Staphylococcus (from the Greek: σταφυλή, staphylē, "grape" and κόκκος, kókkos, "granule") is a genus of Gram-positive bacteria.Staphylococcus aureus (or Staph aureus) is a type of bacteria commonly found on the skin and hair as well as in the noses and throats of people and animals.These bacteria are present in up to 25 percent of healthy people and are even more common among those with skin,eye,nose,or throat infections.more.
- Escherichia coli:
Escherichia coli is a Gram-negative, facultative anaerobic, rod-shaped bacterium that is commonly found in the lower intestine of warm-blooded organisms.Most E. coli strains pose no harm to human health, except for serotype O157:H7, which can cause food poisoning in humans and can become life-threatening.more.
Salmonella is a genus of rod-shaped, Gram-negative, non-spore-forming, predominantly motile enterobacteria.Salmonella germs can live in the intestinal tract of many different animals.Salmonellosis is a bacterial disease caused by the bacterium Salmonella.Salmonella is closely related to the Escherichia genus and are found worldwide in cold- and warm-blooded animals (including humans), and in the environment.They cause illnesses such as typhoid fever, paratyphoid fever, and foodborne illness.more.
- Bacteria and Diseases:
Bacterias are very tiny orgnaisms which are existed almost every where. Bacterias are prokaryotes, they have only one cell, without nucleus. Their genome is only several hundred Kilo base pairs (Kb) to several Mega base pairs (Mb), compared to 3000 Mbs of human genome. Bacteria can be better observed under a microscope as they are typically several µm in diameter. Sometimes bacterias grow into a larger colony and it can then be seen by eye.more.
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