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( Bacteria)
Acidobacteria
Actinobacteria
Aquificae
Bacteroidetes
Chlamydiae
Chlorobi
Chloroflexi
Chrysiogenetes
Cyanobacteria
Deferribacteres
Deinococcus-Thermus
Dictyoglomi
Fibrobacteres
Firmicutes
Fusobacteria
Gemmatimonadetes
Nitrospirae
Planctomycetes
Proteobacteria
Spirochaetes
Thermodesulfobacteria
Thermomicrobia
Thermotogae
Verrucomicrobia The Bacteria [bæk't?r.i.?] (help·info) (singular bacterium) are a group of unicellular microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals. Bacteria are ubiquitous in every habitat on Earth, growing in soil, acidic hot springs, radioactive waste,[1] seawater, and deep in the Earth's crust. There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water; in all, there are approximately five nonillion (5×1030) bacteria on Earth,[2] forming much of the world's biomass.[3] Bacteria are vital in recycling nutrients, and many important steps in nutrient cycles depend on bacteria, such as the fixation of nitrogen from the atmosphere. However, most of these bacteria have not been characterized, and only about half of the phyla of bacteria have species that can be cultured in the laboratory.[4] The study of bacteria is known as bacteriology, a branch of microbiology. There are approximately ten times as many bacterial cells as human cells in the human body, with large numbers of bacteria on the skin and in the digestive tract.[5] Although the vast majority of these bacteria are rendered harmless by the protective effects of the immune system, and a few are beneficial, some are pathogenic bacteria and cause infectious diseases, including cholera, syphilis, anthrax, leprosy and bubonic plague. The most common fatal bacterial diseases are respiratory infections, with tuberculosis alone killing about 2 million people a year, mostly in sub-Saharan Africa.[6] In developed countries, antibiotics are used to treat bacterial infections and in various agricultural processes, so antibiotic resistance is becoming common. In industry, bacteria are important in processes such as sewage treatment, the production of cheese and yoghurt, biotechnology, and the manufacture of antibiotics and other chemicals.[7] Bacteria are prokaryotes. Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. Although the term bacteria traditionally included all prokaryotes, the scientific classification changed after the discovery in the 1990s that prokaryotic life consists of two very different groups of organisms that evolved independently from an ancient common ancestor. These evolutionary domains are called Bacteria and Archaea.[8]
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Bacteria Subcategories
Bacteria Articles
Green Tea Extract - The Health Benefits by New Vitality Editorial Team
Tea is made from the dried leaves of a shrub called Camellia sinensis. Historically, India, China, Japan, and Thailand have been drinking its brew for thousands of years. Because ancient sages realized the health benefits of green tea, it became part...
Want to Lose Weight? Stop Eating Sugar! by Yuri Elkaim
Sugar may taste sweet but its health effects are anything but. Excessive sugar consumption throws the body’s pH levels out of balance making it harder for us to lose weight and maintain good health. The sugar, and the acidity that it creates, provi...
Beneficial Pond Bacteria is a Necessity for Healthy Ponds by Casey Coke
Pond bacteria exists in all ponds, large or small. However, there is both good and bad pond bacteria. The good bacteria (aerobic bacteria) exists to efficiently keep organic waste such as fish waste, excess food, dead vegetation and even fertilizer ...
Information on Q fever-a bacterial disease by Peter Hutch
Q fever is an infectious disease that spreads from animals to humans. Q fever is caused by a microbe called "Coxiella burnetii." This microbe can survive for months and even years in dust or soil.
Many infections are asymptomatic. Common symp...
Acne Vulgaris, the 8 Stages of Acne, Skin Care, Adult Acne, and Scar Removal Options. by Stephen Seabrook
Acne Vulgaris:
This is a medical term used to describe most cases of acne. It really isn't as bad as it sounds! Vulgaris doesn't mean that the acne is vulgar, only that it means that it is common.
Be aware that there a...
Mid-life Mouth Myths by Sheila Wolf, RDH "Mama Gums"
When Robert Browning said, “Grow old with me! The best is yet to be,” I don’t believe he was referring to the merits of our aging bodies. No one really likes to think of getting old but as we watch the maturing process, we need to distinguish between...
Let Probiotics Add More Life to Your Years by Dr.Joseph Mercola
If you're like most people, you really want to live life with passion ... to feel at the height of health all the time, so you can accomplish more of what you want in life. Probiotics can help you do just that! Probiotics are live microorganisms t...
Crowing About Toothache by malo alvarez
When you take care of the natural teeth in your mouth, there will be no toothache to crow about. Toothache refers to the pain caused by tooth or jaw problems such as dental cavity, a cracked tooth, an exposed tooth root, gum disease, disease of the...
The Quest For The Fountain Of Youth by catya asilo
Aging is inevitable. But it seems age is always an issue most especially to women who would go to such length as exhausting all means to hide or delay the proof of age. Some people are gifted with firm, supple and naturally blushed skin that they c...
Getting the Right Bacteria Balance by Paul C
BACTERIA BALANCE What are Probiotics? Probiotics are the beneficial bacteria that live in your digestive tract. Your digestive trace is home to more than 500 different species of bacterial, ideally 80 are the bad ones. There are literally trillio...
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