| bacterial endarteritis | Implantation and growth of bacteria with formation of vegetations on the arterial wall, such as may occur in a patent ductus arteriosus or arteriovenous fistula. (05 Mar 2000) |
|---|---|
| bacterial endocarditis | Endocarditis caused by the direct invasion of bacteria and leading to deformity and destruction of the valve leaflets. Two types are acute bacterial endocarditis and subacute bacterial endocarditis. (05 Mar 2000) |
| bacterial endospore | <microbiology> A dormant body which certain Gram-positive bacteria can develop within them under conditions of stress (like lack of nutrients), which is highly resistant to harsh environmental conditions and which can develop into a new, live bacterium once conditions are good again. (09 Oct 1997) |
| bacterial flagella | <microbiology> Thin filaments composed of flagellin sub units that are rotated by the basal motor assembly and act as propellors. If rotating anticlockwise (as viewed from the flagellar tip) the bacterium moves in a straight path, if clockwise the bacterium tumbles. (18 Nov 1997) |
| bacterial food poisoning | A term commonly used to refer to conditions limited to enteritis or gastroenteritis (excluding the enteric fevers and the dysenteries) caused by bacterial multiplication per se or by a soluble bacterial exotoxin. (05 Mar 2000) |
| bacterial growth | Growth of a bacterial culture either by increase in cell material or cell number. (05 Mar 2000) |
| bacterial infection | <microbiology> Bacteria are group of micro-organisms that are a single cell approximately 1 micron in transverse diameter. Some bacteria cause disease in man, requiring treatment with an antibiotic. (27 Sep 1997) |
| bacterial infections | Infections by bacteria, general or unspecified. (12 Dec 1998) |
| bacterial infections and mycoses | Infections caused by bacteria and fungi, general, specified, or unspecified. (12 Dec 1998) |
| bacterial interference | The condition in which colonization by one bacterial strain prevents colonization by another strain. (05 Mar 2000) |
| bacterial outer membrane proteins | Proteins isolated from the outer membrane of bacteria. (12 Dec 1998) |
| bacterial peliosis | A bacterial infection of haemorrhagic cysts of the liver, spleen, or lymph nodes, seen in immunocompromised persons, caused by Rochalimaea henselae. (05 Mar 2000) |
| bacterial pericarditis | Pericarditis produced by bacterial infection. (05 Mar 2000) |
| bacterial physiology | Physiological processes and activities of bacteria. (12 Dec 1998) |
| bacterial plaque | In dentistry, a mass of filamentous microorganisms and large variety of smaller forms attached to the surface of a tooth which, depending on bacterial activity and environmental factors, may give rise to caries, calculus, or inflammatory changes in adjacent tissue. Synonym: dental plaque, mucous plaque, mucinous plaque. (05 Mar 2000) |
| green bacteria | <microbiology> Anoxygenic phototrophs containing chlorosomes and bacteriochlorophyll c, cs, d or e and light harvesting chlorophyll. (09 Oct 1997) |
|---|---|
| green sulfur bacteria | A group of green or brown bacteria of the families chlorobiaceae and chloroflexaceae that occur in aquatic sediments, sulfur springs, and hot springs and that utilise reduced sulfur compounds instead of oxygen. (12 Dec 1998) |
| photosynthetic bacteria | <microbiology> Bacteria that are able to carry out photosynthesis. Light is absorbed by bacteriochlorophyll and carotenoids. Two principal classes are the green bacteria and the purple bacteria. (31 Dec 1997) |
| phototrophic bacteria | A physiological community of gram-negative bacteria whose members can perform photosynthesis under anaerobic conditions. (12 Dec 1998) |
| coliform bacteria | Bacteria whose presence in waste water is an indicator of pollution and of potentially dangerous contamination. (05 Dec 1998) |
| haemophilic bacteria | <microbiology> Haemophilic bacteria are bacteria which thrive in the presence of blood. These bacteria all belong to the taxonomic genera of Haemophilus, Bordetella, and Moraxella. They are rod-shaped, gram-negative, nonmotile parasites. (09 Oct 1997) |
| purple sulphur bacteria | <microbiology> A group of phototrophic prokaryotes containing bacteriochlorophylls a or b and characterised by the ability to oxidize hydrogen sulphide (H2S) and store elemental sulphur inside the cells. (09 Oct 1997) |
| spiral and curved bacteria | A large, very diverse group of bacteria in which some species are curved, some helical. (12 Dec 1998) |
| sulfur-reducing bacteria | A group of gram-negative, anaerobic bacteria that is able to oxidise acetate completely to carbon dioxide using elemental sulfur as the electron acceptor. (12 Dec 1998) |
| endospore-forming bacteria | A group of rods or cocci whose taxonomic affinities are uncertain. They form endospores, thick-walled bodies formed within the vegetative cells of certain bacteria, able to withstand adverse environmental conditions for prolonged periods. (12 Dec 1998) |
| endosymbiotic bacteria | Bacteria that establish a symbiotic relationship within a eukaryotic cell. For example the nitrogen fixing bacteria of legume root nodules. See: endosymbiont hypothesis. (18 Nov 1997) |
| enteric bacteria | A large group of Gram negative rod-shaped bacteria characterised by a facultatively aerobic metabolism. Many of them are commonly found in the intestines of animals. (09 Oct 1997) |
| faecal coliform bacteria | <gastroenterology, microbiology> Aerobic bacteria found in the colon or faeces, often used as indicators of faecal contamination of water supplies. (09 Oct 1997) |
| flesh-eating bacteria | A strain of Group A streptococcus which, in severe cases, can destroy tissue as fast as surgeons can cut it out. The rapid destruction of tissue caused by these bacteria is localised, so it is unlikely to be caused by a general overstimulation of the immune system by, for example: superantigen exotoxin A. Instead, the invasive strains of strep A probably have other toxin such as exotoxin B, an enzyme (i.e. A cysteine protease) that destroys tissue by breaking down protein. (09 Oct 1997) |
| lactic acid bacteria | <microbiology> A group of Gram-positive, non-sporing bacteria which carry out a lactic acid fermentation of sugars. It includes species of Lactobacillus, Leuconostoc, Pediococcus and Streptococcus. See: lactic acid fermentation. (25 Jun 1999) |