(n.) A microscopic vegetable organism, belonging to the class Algae, usually in the form of a jointed rodlike filament, and found in putrefying organic infusions. Bacteria are destitute of chlorophyll, and are the smallest of microscopic organisms. They are very widely diffused in nature, and multiply with marvelous rapidity, both by fission and by spores. Certain species are active agents in fermentation, while others appear to be the cause of certain infectious diseases. See Bacillus.
Example Sentences:
(1) After Listeria, a bacterium, is phagocytosed by a macrophage, it dissolves the phagosomal membrane and enters the cytoplasm.
(2) These results suggest that the bacterium may not play an important pathogenetic role in ulcer healing and relapse, when patients are managed using an H2-blocker.
(3) Three strains of fluorescent pseudomonads (IS-1, IS-2, and IS-3) isolated from potato underground stems with roots showed in vitro antibiosis against 30 strains of the ring rot bacterium Clavibacter michiganensis subsp.
(4) Microbiological analyses of sediments located near a point source for petrogenic chemicals resulted in the isolation of a pyrene-mineralizing bacterium.
(5) However, the amino acid sequence of the enzyme from the bacterium exhibited low identities (25-30%) with the same enzyme from eukaryotes.
(6) The cytoplasm and the periplasma of the gram-negative facultative photosynthetic bacterium Rhodopseudomonas sphaeroides contain phospholipid transfer proteins; these seem to be involved in the biosynthesis of prokaryotic membranes.
(7) in all of the clinical groups studied suggests that this bacterium is not a good marker of periodontal disease and that it is necessary to define the most characteristic phenotypes and genotypes.
(8) Mössbauer spectroscopy has been used to study the heme iron in various states of cytochrome P450cam from the camphor-hydroxylating system of the bacterium Pseudomonas putida.
(9) We examined the predacious gram-negative bacterium Bdellovibrio bacteriovorous 109J and free-living strains 109J-A1 and 109J-KA1 derived therefrom for penicillin-binding proteins (PBPs).
(10) The enzyme hydrogenase, from the photosynthetic bacterium Chromatium, was purified to homogeneity after solubilization of the particulate enzyme with deoxycholate.
(11) The 3-ketoglycose-synthesizing system in the bacterium does not affect the relative participation of these two pathways.
(12) We have isolated a mutant of the luminous bacterium Beneckea harveyi, which requires exogenous adenosine 3',5'-monophosphate (cyclic AMP) to synthesize luciferase and emit light.
(13) Of the major metabolic processes investigated in this bacterium, only de novo synthesis of the cell envelope was inhibited by lombazole well in advance of an effect on growth.
(14) Allo-deoxycholic acid was formed only in cell extracts prepared from bacteria induced by cholic acid, suggesting that their formation may be a branch of the cholic acid 7 alpha-dehydroxylation pathway in this bacterium.
(15) Crude extracts from aerobically grown bacterium Klebsiella pneumoniae contain three different types of catalases, designated KpT, KpCP, and KpA, whose activities in crude extracts are in the ratio 4.1:1:0.3.
(16) Nitrendipine, verapamil, LaCl3 and omega-conotoxin were tested and these blockers inhibited chemotactic behaviour in the bacterium toward L-alanine.
(17) After several rounds, the scientists had pieced together all 1m letters of the bacterium's genome.
(18) An assay for the determination of NAD(P)+ and NAD(P)H in extracts from the obligate anaerobe bacterium Thermoanaerobacter finnii is developed and the strategy for this development is described.
(19) The bacterium produces unique, branched-chain fatty acids, catalase, oxidase (weakly), and gelatinase and uses starch while ignoring other carbohydrates.
(20) Previous studies have demonstrated that human salivary alpha-amylase specifically binds to the oral bacterium Streptococcus gordonii.
Organism
Definition:
(n.) Organic structure; organization.
(n.) An organized being; a living body, either vegetable or animal, compozed of different organs or parts with functions which are separate, but mutually dependent, and essential to the life of the individual.
Example Sentences:
(1) The high amino acid levels in the cells suggest that these cells act as inter-organ transporters and reservoirs of amino acids, they have a different role in their handling and metabolism from those of mammals.
(2) These organic compounds were found to be stable on the sorbent tubes for at least seven days.
(3) The main clinical features pertaining to the concept of the "psycho-organic syndrome" (POS) were investigated in a sample of children who suffered from severe craniocerebral trauma.
(4) After 3 and 6 months, blood collected by cardiocentesis using ether anesthesia and then sacrificed to remove CNS and internal organs.
(5) Addition of phospholipase A2 from Vipera russelli venom led to a significant increase in the activity of guanylate cyclase in various rat organs.
(6) For the first time it was organized on the basis of population.
(7) Acceptance of less than ideal donors is ill-advised even though rejection of such donors conflicts with the current shortage of organs.
(8) There is no evidence that health-maintenance organizations reduce admissions in discretionary or "unnecessary" categories; instead, the data suggest lower admission rates across the board.
(9) We conclude that chloramphenicol resistance encoded by Tn1696 is due to a permeability barrier and hypothesize that the gene from P. aeruginosa may share a common ancestral origin with these genes from other gram-negative organisms.
(10) Recovery of CV-3988 from plasma averaged 81.7% for the column procedure and 40% for the organic extraction.
(11) One of the main users is coastal planning organizations and conservation organizations that are working on coral reefs.
(12) Infection with opportunistic organisms, either singly or in combination, is known to occur in immunocompromised patients.
(13) The causative organisms included viruses, fungi, and bacteria of both high and low pathogenicity.
(14) A chronic cannulation procedure is described which allows for sampling vomeronasal organ (VNO) contents repeatedly in freely moving conscious subjects.
(15) Neither Brucella organisms, nor increased numbers of neutrophils could be found in semen samples collected from the experimental animals.
(16) The lineage and clonality of Hodgkin's disease (HD) were investigated by analyzing the organization of the immunoglobulin and T-cell receptor beta-chain (T beta) gene loci in 18 cases of HD, and for comparison, in a panel of 103 cases of B- and T-cell non-Hodgkin's lymphomas (NHLs) and lymphoid leukemias (LLs).
(17) A review is made from literature and an inventory of psychological and organic factors implicated in this pathology.
(18) The authors conclude that H. pylori alone causes little or no effect on an intact gastric mucosa in the rat, that either intact organisms or bacteria-free filtrates cause similar prolongation and delayed healing of pre-existing ulcers with active chronic inflammation, and that the presence of predisposing factors leading to disruption of gastric mucosal integrity may be required for the H. pylori enhancement of inflammation and tissue damage in the stomach.
(19) Data is available to support the early influences of enamel organ epithelium upon a responding mesenchyme in the determination of dental morphogenetic fields (Dryburg, 1967; Miller, 1969).
(20) The four deaths were not related to the injuries of parenchymatous organs.