Crossword clues for bacillus
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Bacillus \Ba*cil"lus\, n.; pl. Bacilli. [NL., for L. bacillum. See Bacillari[ae].] (Biol.) A variety of bacterium; a microscopic, rod-shaped vegetable organism.
Douglas Harper's Etymology Dictionary
1877, medical Latin, from Late Latin bacillus "wand," literally "little staff," diminutive of baculum "a stick," from PIE root *bak- "staff," also source of Greek bakterion (see bacteria). Introduced as a term in bacteriology 1853 by German botanist Ferdinand Cohn (1828-1898).
Wiktionary
n. Any of various rod-shaped, spore-forming aerobic bacteria in the genus ''Bacillus'', some of which cause disease.
WordNet
Wikipedia
Bacillus is a genus of gram-positive, rod-shaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes (oxygen reliant), or facultative anaerobes (having the ability to be aerobic or anaerobic). They will test positive for the enzyme catalase when there has been oxygen used or present. Ubiquitous in nature, Bacillus includes both free-living (nonparasitic) and parasitic pathogenic species. Under stressful environmental conditions, the bacteria can produce oval endospores that are not true 'spores', but to which the bacteria can reduce themselves and remain in a dormant state for very long periods. These characteristics originally defined the genus, but not all such species are closely related, and many have been moved to other genera of the Firmicutes.
Many species of Bacillus can produce copious amounts of enzymes which are made use of in different industries. Some species can form intracellular inclusions of polyhydroxyalkanoates under certain adverse environmental conditions, as in a lack of elements such as phosphorus, nitrogen, or oxygen combined with an excessive supply of carbon sources.
B. subtilis has proved a valuable model for research. Other species of Bacillus are important pathogens, causing anthrax and food poisoning.
A bacillus (plural bacilli) is a rod-shaped bacterium. Bacilli are found in many different taxonomic groups of bacteria. However, the name Bacillus, capitalized and italicized, refers to a specific genus of bacteria. The name Bacilli, capitalized but not italicized, can also refer to a less specific taxonomic group of bacteria that includes two orders, one of which contains the genus Bacillus. When the word is formatted with a lowercase and not italicized, 'bacillus', it will most likely be referring to shape and not to the genus at all. The shape bacillus can also be called rods.
Bacilli usually divide in the same plane and are solitary, but can combine to form diplobacilli, streptobacilli, and palisades.
- Diplobacilli: Two bacilli arranged side by side with each other.
- Streptobacilli: Bacilli arranged in chains.
- Coccobacillus: Oval and similar to coccus (circular shaped bacterium).
There is no connection between the shape of a bacterium and its color in the Gram staining. MacConkey agar can be used to distinguish among Gram negative bacilli such as E. coli and salmonella.
Bacillus is a stick insect genus, common in Europe.
Bacillus atticus atticus is an endemic species found in Greece and Bacillus rossius is found in Europe. Bacillus peristhenellus is found in Australia.
Usage examples of "bacillus".
We even tried aureomycin, in case the bacilli were resistant to streptomycin.
In five days they were dead, with exactly those symptoms their brothers had, after injections of the living diphtheria bacilli.
He took these creatures and shot an enormous dose of diphtheria bacilli into them.
The vaccine was basically weakened tubercle bacilli which were injected into the skin, then followed by injections of various drugs such as ethambutol, rifampicin, thiacetazone, and poyrazinamide, and sometimes streptomycin, isioniazid, and para-aminosalicylic acid.
Moreover, at the present time, when there is so much talk about the inoculative treatment of pulmonary consumption by the cultivated virus of its special microbe, it is highly interesting to know that the helenin of Elecampane is said to be peculiarly destructive to the bacillus of tubercular disease.
So he ranged abroad and gathered to his laboratory and injected his beloved terrible bacilli into tortoises, sparrows, five frogs and three eels.
Metchnikoff came out of the fog of his theory of phagocytes for a moment, and tried to satisfy them by sowing chicken cholera bacilli among the meadow mice which were eating up the crops.
Koch had finished his virulent and partly comic wrangle with Pasteur, who was just then with prodigious enthusiasm saving the lives of sheep and cattle in France, the discoverer of the tubercle bacillus started sniffing along the trail of one of the most delicate, the most easy to kill, and yet the most terribly savage of all microbes.
Most housing had been swallowed by beds of swampy fuzz, but a few buildings were so larded with chemical fungicides and brews of biological toxins that local bacilli and thallophytes had never established a foothold.
On Plates VII and VIII two kinds of unicellular organisms are shown, of one which - the green algae - is accustomed to live in light, the other - the bacilli - in darkness.
Our Gardener is, in my opinion, about to dip the solar system, and the human bacillus, the little mortal vibrio which twisted and wriggled upon the outer rind of the earth, will in an instant be sterilized out of existence.
As active bacilli or after sporulation on contact with air, the disease was literally designed to spread into the countryside.
But then he had picked up Scientific American to find a lengthy and colorful article by Sergei Forward on how he, the great Finnish research bacteriologist, had discovered how to mutate various bacilli with Uranium.
Nazi culture, if the group be understood as a common commitment to shared cultural ends and to the biomedical ideology defining the Jew as bacillus.
Koch had studied them carefully and found them to be veritable menageries of hideous scum-forming bacilli and strange cocci and other foreign creatures that had no business there.