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bacteria
bacteria
A Dictionary of Food and Nutrition
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2005
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© A Dictionary of Food and Nutrition 2005, originally published by Oxford University Press 2005. (Hide copyright information)
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bacteria Unicellular micro‐organisms, ranging between 0.5 to 5 μm in size. They may be classified on the basis of their shape: spherical (coccus), rodlike (bacilli), spiral (spirillum), comma‐shaped (vibrio), corkscrew‐shaped (spirochaetes), or filamentous. Other classifications are based on whether or not they are: stained by Gram's stain;
aerobic or
anaerobic; and
autotrophic or
heterotrophic. Some form spores that are resistant to heat and sterilizing agents.
Bacteria are responsible for much food spoilage, and for disease (pathogenic bacteria), but they are also made use of, for example in the
pickling process and
fermentation of milk, as well as in the manufacture of
vitamins and
amino acids and a variety of
enzymes and
hormones.
Between 45 and 85% of the dry matter of bacteria is protein, and some can be grown on petroleum residues or methanol for use in animal feed.
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Bacteria get a bad rap.(Originated from Knight-Ridder Newspapers)
Newspaper article from: Knight Ridder/Tribune News Service; 8/23/1995; ; 700+ words
; TOXIC (say it TOX-ik) Poisonous Bacteria get a bad rap. It's true that some kinds of bacteria cause infections and disease. They give...ve got some kind of bug.'' That bug is bacteria (say it bak-TEER-ee-uh). Bacteria...
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Bacteria are indigenous to esophagus.
Newspaper article from: Cancer Weekly; 4/6/2004; 700+ words
; ...surprises concerning bacteria. For many years, doctors didn't believe that bacteria could survive in the...discovered that the bacterium Helicobacter pylori...scientists established the bacterium's link to certain...of disease-causing bacteria also reside in the esophagus...
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Bacteria: the good, the bad, and the itchy.(antibiotic use)
Magazine article from: Current Health 2, a Weekly Reader publication; 9/1/2002; ; 700+ words
; ...the latest horror flick--it's just the bacteria living in and on our bodies. Bacteria are everywhere: They're in our air, in...carries approximately one-quarter pound of bacteria on our bodies. They are so tiny that without...
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BACTERIA MIX IT UP AT THE MICROSCOPIC LEVEL
News Wire article from: US Fed News Service, Including US State News; 11/20/2009; 700+ words
; ...studies of the motion of tiny swimming bacteria, scientists at the U.S. Department...University, piled Bacillus subtillis bacteria into thin films to decode the physics that govern how they move. The bacteria, each equipped with many tiny flagella...
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Where Bacteria Get their Genes
Magazine article from: USA Today; 6/1/2005; ; 700+ words
; ...know which of a bacterium's genes came from...studied group of bacteria, the Gamma-Proteobacteria...load into other bacteria. This way, bacteriophages...up DNA from one bacterium and dumping it into another. Bacteria also can make contact...
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Bacteria lingering in body may pose future food poisoning risks.
Newspaper article from: Biotech Week; 3/3/2004; 700+ words
; ...Poor hygiene can spread the bacteria excreted in stool to the hands...fortuitous genetics; the bacteria express at least one gene...surroundings more hospitable. "The bacteria have obviously maintained...said Contag. "Since the bacterium was often found in the gall...
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Bacteria play role in preventing spread of malaria.
Newspaper article from: Drug Week; 6/12/2009; 700+ words
; Bacteria in the gut of the Anopheles gambiae mosquito...Research Institute found that removing these bacteria, or microbial flora, with antibiotics...Research Institute. "The interplay between bacteria and the mosquito's immune system may...
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Bacteria create aquatic superbugs in waste treatment plants.
Newspaper article from: NewsRx Health; 6/14/2009; 700+ words
; ANN ARBOR, Mich.---For bacteria in wastewater treatment plants...team sampled water containing the bacteria Acinetobacter at five sites in and...found the so-called superbugs---bacteria resistant to multiple antibiotics...
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Hemolytic bacteria in water from the dental air-water syringe. (Research).(Statistical Data Included)
Magazine article from: Journal of Dental Hygiene; 3/22/2002; ; 700+ words
; ...questions remain concerning the importance of bacteria in DUW, including AWS water. Of primary...the issue of human exposure to these bacteria during dental treatment. (2,3) It...municipal water mains. Thus, the source of bacteria in DUW is understood to be ubiquitous...
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Study: Bacteria Live in the Esophagus.
News Wire article from: AScribe Medicine News Service; 3/16/2004; 700+ words
; ...surprises concerning bacteria. For many years, doctors didn't believe that bacteria could survive in the...discovered that the bacterium Helicobacter pylori...scientists established the bacterium's link to certain...of disease-causing bacteria also reside in the esophagus...
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bacteria
Book article from: The Columbia Encyclopedia, Sixth Edition
bacteria [pl. of bacterium], microscopic unicellular prokaryotic organisms...Once considered a part of the plant kingdom, bacteria were eventually placed in a separate kingdom, Monera . Bacteria fall into one of two groups, Archaebacteria...
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Bacteria
Encyclopedia entry from: UXL Encyclopedia of Science
...form of the word bacterium, which represents...single organism. Bacteria are found everywhere...surface of some bacteria cells. Coccus: A type of bacterium with a spherical...of a typical bacterium shows, the cytoplasm of all bacteria is enclosed within...
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Bacteria, Growth and Reproduction
Book article from: World of Forensic Science
...example, if a bacterium uses organic...chemoheterotrophic bacteria), then sources...the individual bacteria, the process...the parent bacterium grows and becomes...divides the parent bacterium into two so-called daughter bacteria. This whole...
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Bacteria, Classification
Book article from: World of Forensic Science
Bacteria, Classification The shapes of bacterial...vibrio) cells. Many bacilli and vibrio bacteria have whiplike appendages (called flagella...and act as tiny propellers, making the bacteria very mobile. On the surface of some bacteria...
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Luminescent Bacteria
Book article from: World of Microbiology and Immunology
...luminescent process. The bacteria produce a chemical called...the chemical exits a bacterium and drifts away in the...cell densities when the bacteria are tightly packed together...luminescent genes into other bacteria allows the development...again and because a bacterium's cycle of ...
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