RESUMEN
Five hundred soil samples were examined for Nocardia species in Patiala area by using paraffin bait technique. Forty (8 per cent) yielded Nocardia species. All the forty isolates identified as Nocardia asteroides were pathogenic to white mice.
Asunto(s)
Animales , India , Ratones , Nocardia/clasificación , Nocardiosis/microbiología , Microbiología del Suelo , Especificidad de la Especie , Vísceras/microbiologíaRESUMEN
Four hundred isolates of Gram Negative bacilli from different samples were tested by three tube method and conventional tests. An overall agreement between the two methods was 89.5%. Non-agreement was in respect of less stable tests like gas production and motility. This does not reflect adversely on the efficacy and suitability of the method. The three tube method is simple, rapid, economical and accurate, saving both time and material.
Asunto(s)
Técnicas Bacteriológicas , Colorimetría , Enterobacteriaceae/aislamiento & purificación , Fermentación , Glucosa/metabolismo , Manitol/metabolismo , Ureasa/químicaRESUMEN
A total of 150 strains of E. coli isolated from faecal samples of normal population (Group I), hospital personnel (Group II) and hospitalised patients (Group III) were studied for the transfer of R-plasmids. Auto-transferable R-plasmids were observed in 72.0, 82.0 and 80.0 per cent of groups I, II and III respectively. 77.0 per cent strains were typable. 04 was the most common serotype found in groups I and II, 0134 in group III.