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Topic: Bacterium

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In the News (Wed 20 Mar 19)

  Virus Or Bacterium?
A typical bacterium has a rigid cell wall and a thin, rubbery cell membrane surrounding the fluid, or cytoplasm (sigh-toe-plasm), inside the cell.
In addition, it may have extra loose bits of DNA called plasmids floating in the cytoplasm.
The bacteriophage cuts a hole in the E. coli's cell wall.
www.microbeworld.org /microbes/virus_bacterium.aspx   (353 words)

  Ancient Bacterium May Hold Secret of Life's Origins
The bacterium that lived millions of years before the dinosaurs was in a state of suspended animation in an ancient salt crystal in an underground cavern near Carlsbad, New Mexico.
The bacterium was trapped in a tiny brine pocket in the salt from ancient rock formations.
The scientists are comparing the bacterium to its modern relatives and are now looking for even older organisms.
www.space.com /searchforlife/ancient_bacterium_001019_wg.html   (446 words)

 New bacterium isolated from patients with rare immune disorder
To establish that the bacterium had specifically caused the infection in the lymph nodes, the researchers inoculated healthy mice and mice genetically altered to carry CGD with various amounts of the bacterium.
Subsequent genetic sequencing confirmed that the bacterium found in the mice was identical to the organism isolated from the patient.
The bacterium was not fatal in the CGD patient nor the infected mice.
www.earthtimes.org /articles/show/6162.html   (553 words)

 [No title]
The bacterium is characterized by high proportions of the fatty acids palmitic acid, oleic acid, tuberculostearic acid and hydroxypalmitic acid.
The purification and characterization of triose-phosphate isomerase from the psychrophilic bacterium Vibrio marinus (vTIM) is described.
Since this bacterium produces a luxuriant growth in standard culture media, it is a good candidate for the development of an inexpensive and specific affinity chromatography technique.
www.lycos.com /info/bacterium--growth.html   (530 words)

 Characterization of a Hot-Spring Bacterium Resembling Heliothrix oregonensis
The unidentified bacterium was observed to either use reduced species of sulfur in a photoautotrophic mode or grow photoheterotrophically using organic carbon excreted by coinhabiting cyanobacteria.
In this study, an unidentified bacterium resembling the known bacterium Heliothrix oregonensis and an unknown purple sulfur bacterium was characterized.
and that of the unidentified purple sulfur bacterium.
www.wou.edu /~boomers/research/thesisstuff/RCRthesis.htm   (4611 words)

 [No title]   (Site not responding. Last check: 2007-11-07)
By acquiring this gene, the bacterium gradually changed from a germ that causes a mild human stomach illness acquired via contaminated food or water to the flea-borne agent of the "Black Death," which in the 14th century killed one-fourth of Europe's population.
A nitrate-reducing bacterium, strain SPR2T, was isolated from a sulphur-oxidizing, autotrophic denitrification reactor used for advanced treatment of wastewater from the lake of Sihwa, Korea.
Moreover, the bacterium carries a large number of genes coding for the biosynthesis of antibiotics and fungicides, which are potential sources of spin-offs for the treatment of infectious diseases.
www.lycos.com /info/bacterium--genes.html   (835 words)

 Bacterium definition - Medical Dictionary definitions of popular medical terms
Bacterium definition - Medical Dictionary definitions of popular medical terms
Bacterium Discovered In Arteries With Giant Cell Arteritis -
Helicobacter Pylori - Learn about Helicobacter pylori (H. pylori) including what it is, how this infection is diagnosed, and how and why it is treated
www.medterms.com /script/main/art.asp?articlekey=2416   (159 words)

 Medical College of Wisconsin - Medical College receives NIAID grant to study infectious bacterium
Infection with this bacterium can cause tularemia, a plague-like disease primarily found in rodents that can be transferred to humans.
Additionally, the bacterium was turned into a weapon in the past, making the development of vaccines and the identification of therapeutic agents particularly urgent.
The goal of this research is to genetically engineer strains of this bacterium suitable for the design of a new vaccine.
www.mcw.edu /display/router.asp?docid=15778   (234 words)

 Researchers Discover New Disease-Causing Bacterium in Patients with Rare Immune Disorder   (Site not responding. Last check: 2007-11-07)
The bacterium is part of the Acetobacteraceae family that includes several types of bacteria prevalent in the environment and used industrially to produce vinegar.
Genetic sequencing confirmed that the bacterium found in the mice was identical to the organism isolated from the patient.
The bacterium was not fatal in the CGD patient nor the infected mice.
www3.niaid.nih.gov /news/newsreleases/2006/CGD_bacterium.htm   (924 words)

 bacterium - Search Results - MSN Encarta
Various species are responsible for decay, fermentation, nitrogen fixation, and many plant and animal diseases.
germ, microbe, infection, virus, bacterium, microorganism, fault, error, mistake, problem, gremlin, listening device, hidden microphone, surveillance...
amoeba, bacteriophage, bacterium, botulinum, candida, ciliate, coccus, E. coli, flagellate, listeria, mycoplasma, protozoan, rhizopod, salmonella,...
encarta.msn.com /bacterium.html   (170 words)

 Luminescent bacteria - morphology and physiology   (Site not responding. Last check: 2007-11-07)
The cells of this bacterium are motile by one to three unsheathed polar flagella.
The cells of this bacterium are motile by two to eight sheathed polar flagella.
On the photo on the left colonies of the luminescent bacterium Photobacterium luciferum are shown.
www.biology.pl /bakterie_sw/bac_mf_en.html   (582 words)

 Bacterium Tapped to Battle Fire Blight Disease in Tree Fruit / March 25, 2005 / News from the USDA Agricultural ...
Their fight is against Erwinia amylovora, the bacterium responsible for fire blight, a costly disease of apples, pears and other tree fruit.
The blossom-dwelling bacterium naturally competes with fire blight for space and nutrients that both need to survive.
There, he showed that spraying E325 onto blossoms enables the bacterium to crowd out its fire blight rival so the disease is less able to cause harm.
www.ars.usda.gov /is/pr/2005/050325.htm   (382 words)

 Bacterium - WrongDiagnosis.com - WrongDiagnosis.com
Bacterium: infections and associated diseases by bacteria, general or unspecified.
Bacterium: Another name for Bacterial diseases (or close medical condition association).
Bacterium: Bacterium is listed as a type of (or associated with) the following medical conditions in our database: Bacterial diseases, Microbes, Non-genetic diseases
www.wrongdiagnosis.com /medical/bacterium_printer.htm   (313 words)

 Bacterium In Giant Cell Arteritis - Arthritis and arthritic conditions, medications, and treatment on MedicineNet.com
Researchers in Germany recently discovered evidence of the presence of a bacterium, called Chlamydia pneumonia, in the arteries of patients with giant cell arteritis and polymyalgia rheumatica.
They further theorized that the bacterium may affect the arteries in the elderly because these arteries may have been damaged by atherosclerosis (hardening of the arteries), thereby creating a favorable environment for the bacterium.
While the exact role of the bacterium Chlamydia pneumonia in patients with giant cell arteritis and polymyalgia rheumatica is not clear, this is very exciting medical news.
www.medicinenet.com /script/main/art.asp?articlekey=14193   (568 words)

 Bacteria - Wikinfo
Bacteria, bacterium in the singular, are a type of single celled micro-organisms characterized by the lack of a membrane-bound nucleus and membrane-bound organelles, the other type being the archaea.
Bacteria are among the oldest and most numerous living things and are found in the soil, water, and inside and outside most multicellular organisms.
The term bacterium was introduced by German scientist C.G. Ehrenberg in 1828 as a representative name for some bacterial types.
www.wikinfo.org /wiki.php?title=Bacterium   (4903 words)

 What the Heck is a Bacterium's "Tail"?
So, when a bacterium is in a liquid environment, there may be nutrients within the medium.
A bacterium cannot make these consious decisions; however, as the bacterium moves out of the nutrient molecules the nutrient-binding proteins in the membrane will soon not be occupied any longer, and the intracellular signal will cease.
One end of the bacterium acts as the north, and the other end as the south magnetic pole - when the bacteria are not attached to something, the bacteria will move rapidly by flagellar rotation along a magnetic field line until they run into a place for attachment.
people.ku.edu /~jbrown/flagel.html   (1796 words)

 CNN.com - Scientists sequence largest bacterium genome so far - August 30, 2000
It is the major cause of death of cystic fibrosis sufferers and causes infection in burn victims and AIDS and cancer patients.
The sequencing of all the genes in the bacterium will allow scientists to discover how it lives in different environments and manages to elude the immune system and resist antibiotics.
The bacterium is intriguing for scientists because unlike other bacteria it is very adaptable, lives in drainpipes, showers and soil and cannot be destroyed with common disinfectants.
archives.cnn.com /2000/HEALTH/08/30/bacterium.genome.reut   (690 words)

 Ecosystem of vanishing lake yields valuable bacterium
Peyton hoped the salty ecosystem of Soap Lake might be home to a bacterium that could live in such high-salt waters and also find nitrates appetizing.
The bacterium was perfect for the treatment of salty, nitrate-bearing wastewater, as well as wastewater from the production of explosives and fertilizers.
It could take years more for the bacterium to be turned into an industrial process, something Peyton hopes a company will attempt in the future.
www.montana.edu /cpa/news/nwview.php?article=4144   (752 words)

 bacterium - multiple sclerosis encyclopaedia   (Site not responding. Last check: 2007-11-07)
They are not the same as viruses which are considerably smaller and simpler structures and, unlike bacteria, are unable to reproduce on their own.
Bacterium is the singular of the word and bacteria is the plural - one bacterium and many bacteria.
This enables them to reproduce very quickly and one bacterium can become several million bacteria in a very short space of time if the conditions are right.
www.mult-sclerosis.org /bacterium.html   (279 words)

  cbs5.com - Jamba Juice Warns Of Deadly Bacterium In Smoothies
The warning, released in consultation with the U.S. Food and Drug Administration, applies to smoothies sold at Jamba Juice stores in Arizona, Southern Nevada and Southern California between Nov. 25 and Dec. 1.
San Francisco-based Jamba Juice issued the warning after one of its suppliers—Cleugh's Frozen Foods of Salinas—said that frozen strawberries from one of its facilities tested positive for Listeria monocytogenes.
The bacterium can cause sometimes fatal infections in young children, the elderly and others with weak immune systems.
cbs5.com /topstories/local_story_339170709.html   (269 words)

  Bacteria - Wikipedia, the free encyclopedia
Bacteria (singular, bacterium) are a major group of living organisms.
Most are microscopic and unicellular, with a relatively simple cell structure lacking a cell nucleus, and organelles such as mitochondria and chloroplasts.
The end result is that a bacterium contains a combination of traits from two different parental cells.
en.wikipedia.org /wiki/Bacterium   (2153 words)

 How the Cholera Bacterium Got Its Virulence
Scientists have known that the cholera bacterium (Vibrio cholera) owes its virulence to two factors--the cholera toxin and another protein, TCP pili, which enables it to clump together and adhere to the intestines.
Once inside the bacterium, the cholera toxin gene is activated by the same gene that turns the TCP pili gene on.
Yet in the series of experiments reported in Science, Mekalanos and Waldron show that the CTX phage does move from a donor bacterium (Vibrio cholera 01) to a nonvirulent recipient bacterium, bringing with it all of its genes.
www.hms.harvard.edu /news/releases/696cholera.html   (762 words)

 André Lwoff - Nobel Lecture
To him the transmission of properties from one bacterium to another was the result of the transmission by the external environment of certain genes endowed with a relative stability, and the viruses were compared to lethal genes.
The bacterium divided, the daughters were separated, and at each division a specimen was taken from the medium.
In the last analysis, the fate of a bacterium infected by a bacteriophage thus depends on the genetic constitution of the bacteriophage, on the genetic constitution of the bacterium, and on the metabolism of the bacterium which is in turn controlled by the environment.
www.nobel.se /medicine/laureates/1965/lwoff-lecture.html   (4605 words)

 Dorlands Medical Dictionary
chemoautotrophic bacterium,   one that is autotrophic and obtains energy by the oxidation of inorganic compounds of iron, nitrogen, sulfur, or hydrogen; none is pathogenic.
lysogenic bacterium,   one that harbors in its genome the genetic material (prophage) of a temperate bacteriophage and thus reproduces the bacteriophage in cell division; occasionally the prophage develops into the mature form, replicates, lyses the bacterial cell, and is free to infect other cells.
sulfur bacterium,   a bacterium that oxidizes hydrogen sulfide, sulfur, or thiosulfate.
www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_b_02zPzhtm   (2750 words)

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