Intracellular Microbial Urease
نویسندگان
چکیده
منابع مشابه
Microbial Urease in Health and Disease
Since the discovery of Helicobacter pylori, the urease activity of this bacterial pathogen has been identified as the key factor in infection and acid acclimation in the human stomach. Ureolytic activity plays a key role in the pathogenesis of several bacteria, and urease has also been described as an emerging pathogenic factor during fungal infection. However, urease produced by the oral bacte...
متن کاملUrease and Dental Plaque Microbial Profiles in Children
OBJECTIVE Urease enzymes produced by oral bacteria generate ammonia, which can have a significant impact on the oral ecology and, consequently, on oral health. To evaluate the relationship of urease with dental plaque microbial profiles in children as it relates to dental caries, and to identify the main contributors to this activity. METHODS 82 supragingival plaque samples were collected fro...
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Disintegration of microbial cells is a necessary first step for the production of intracellular enzymes and organelIes. With increasing use o f intracellular microbial material in industry and medicine, the cell disruption unit operation is gaining in importance. This review examines the state of the art o f the largescale cell disruption technology and disruption methods o f potential commerci...
متن کاملTillage Effects on Intracellular and Extracellular Soil Urease Activities Determined by an Improved Chloroform Fumigation Method
SoilScience • Volume 175, Number 11, November 2010 Urease is one of the most thoroughly studied soil enzymes because it greatly influences the fate and performance of a widely used fertilizer (urea) (Bremner and Mulvaney, 1978; Ma et al., 1999; Tate, 2002). Urea was reported to be taken up by microorganisms, such as Corynebacterium glutamicum and Paxillus involutus (Jahns and Kaltwasser, 1989; ...
متن کاملEffects of commercial diazinon and imidacloprid on microbial urease activity in soil and sod.
Diazinon [O,O-diethyl O-2-isopropyl-6-methyl(pyrimidine-4-yl) phosphorothioate] and imidacloprid [1-(1-[6-chloro-3-pyridinyl]methyl)-N-nitro-2-imidazolidinimine] are applied to lawns for insect control simultaneously with nitrogenous fertilizers such as urea, but their potential effect on urease activity and nitrogen availability in turfgrass management has not been evaluated. Urease activity i...
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ژورنال
عنوان ژورنال: Nature
سال: 1964
ISSN: 0028-0836,1476-4687
DOI: 10.1038/202930a0