; (2) Gram-negative—cocci and bacilli. Many anaerobic bacteria possess virulence factors that facilitate their pathogenicity (e.g. histolytic enzymes and various toxins). A putrid odour of the affected tissue or drainage is highly suggestive of an anaerobic infection, as is the presence of ...
The type of bacteria isolated belong to in gram positive, gram negative, aerobic and anaerobic bacteria as shown in table (4) the most bacteria which found were the aerobic bacteria (10 strains) including Bacillus sp. Isolation and identification of bacteria and parasite from teeth caries and pe...
Anaerobic bacteria are important commensal flora of the skin and oral, intestinal, and pelvic mucosae, and are classified according to their Gram-staining characteristics and ability to produce spores: (1) Gram-positive—cocci, non-spore-forming bacilli, and spore-forming bacilli (notably the ...
gram-negative bacteriaroot canalIntroduction. Bacteria from the root canal can penetrate beyond the apex and cause acute or chronic inflammation in periapical region. The aim of this study was to investigate the prevalence of different forms of apical periodontitis and to determine the presence of ...
special handling, as O2 (i.e., open air) is toxic to cultures and they may present as “culture-negative” if exposed; once the specimen arrives in the lab, it is processed under conditions of decreased O2, and any bacteria identified are recultured to determine their sensitivity to ...
Why is Mobiluncus said to be Gram variable? - it is truly Gram positive - but looks Gram negative because the stains are easily washed away on the decolorization step What does Mobiluncus usually cause? - bacterial vaginosis: vaginitis w/out an inflammatory response ...
Among all, Gram-positive bacteria constitute the most frequently isolated pathogens (45–65%), followed by Gram-negative bacteria (25–40%) and fungi (3–6%) [1–4]. Infection with mycobacteria and anaerobic bacteria is rare, both of which are found in <0.5% of peritonitis episodes [1]....
The coliform group referred to the aerobic or facultative anaerobic gram-negative budless bacillus.(大肠菌群是指需氧和兼性厌氧的革兰氏阴性无芽孢杆菌。) But aerating sewage is expensive and difficult; using anaerobic bacteria is cheaper and simpler.(给污物充气是昂贵且困难的,不过利用厌氧细菌却便宜...
An analysis was made of the anaerobic bacteria isolated from 5‐week‐old chickens, the organisms being divided into groups based on morphological and some physiological criteria. It was found that the Gram‐negative non‐sporing anaerobes (Bacteroidaceae) and the Gram‐positive non‐sporing rods...
Rapid methods for differentiating gram-positive from gram-negative aerobic and facultative anaerobic bacteria. M anafi , M. & K neifel , W. 1990. Rapid methods for differentiating Gram-positive from Gram-negative aerobic and facultative anaerobic bacteria. Journal o... M Manafi,W Kneifel - 《Jo...