![proteus o x 19 proteus o x 19](https://image.slidesharecdn.com/rickettsiasub-140901023618-phpapp01/95/rickettsia-22-638.jpg)
Proteus species show variable reactions in the production ofhydrogen sulfide and indole.They do not decarboxylate amino acids, such as lysine or arginine.They reduce nitrate to nitrite but do not utilize malonate.They do not ferment lactose, mannitol, mannose, inositol, adonitol, dulcitol, sorbitol, raffinose, and arabinose.Proteus species ferment glucose with production of acid only.It is because bile salts present in the MacConkey medium inhibit the swarming. Swarming does not occur on MacConkey medium, on which Proteus produces colorless non-lactose-fermenting colonies. Hence, sev-eral methods are available to inhibit swarming these include the use of increased concentration of agar in the medium from 1–2% to 6%, and the use of chloral hydrate (1:500), sodium azide (1:500), alcohol (56%), sulfonamide, surface active agents, or boric acid (1:1000). Swarming, shown by Proteus, is aproblem when mixed growth on a solid medium is obtained in which Proteus bacilli are present with other bacteria. The exact mechanism responsible for swarming shown by Proteus species is not known. They spread on the surface of the plate in successive waves to form a thin filmy layer in concen-tric circles. vulgaristypically spread or swarmon surface of the medium. Proteus colonies on the medium emit a characteristic putrefactive (“fishy” or “seminal”) odor. Proteeae organisms are aerobic bacteria, which grow well on ordi-nary media, such as nutrient agar. Tässä bakteerissa esiintyvät somaattiset O. Proteus vulgaris Sillä on antigeeninen rakenne, joka muodostuu somaattisesta O-antigeenistä, lippulaarisesta H: sta ja pinnallisesta K. Most of them, with few exceptions, are motile due to the presence of peritrichous flagella. Proteus OX-19 on yksi bakteerin tuottamista somaattisista antigeeneistä Proteus vulgaris.Antigeeni on organismille vieras molekyyli, jonka immuunijärjestelmä tunnistaa ja johon se tuottaa vastauksen.Many of them form long, curved, and filamentous forms in young cultures.Manufacturer: Thermo Scientific R30165801. Remel Agglutinating Sera, Proteus O are used as positive controls for stained Proteus suspensions. They are arranged as single, in pairs, or in short chains. Thermo Scientific Remel Agglutinating Sera, Proteus O.Proteeae organisms are Gram-negative and noncapsulated coccobacilli measuring 1–3 0.6 m in size.