Studies on the Biological Properties of Nocardia Brasiliensis Isolated from Pus

Nocardia brasiliensis의 분리(分離) 및 생물학적(生物學的) 성상(性狀)에 관(關)하여

The majority of Nocardial infections reported in North America areIN. ;asteroides while those in Latin America are N. brasiliensis species. Infection with N. brasiliensis, to our knowledge, has not previously been reported in Korea. The auther isolated one strain of Nocardia brasiliensis from the abscess of right bottock of 23 month old female leukemic patient who was treated with methotrixate for five months at the Seoul National University Hospital. The morphological characteristics and biological properties were similar with the R.E. Gordon's description. The results are summarized as follow: 1. After 5 days incubation on Sabouroud's glucose agar, the acid fast character appeared partially. 2. Tyrosine, casein and urea were decomposed by 7 days incubation both at room temperature and at $37^{\circ}C$. 3. Sod, citrate and sod. acetate were utilized at $22^{\circ}C\;and\;37^{\circ}C$ after 28 days incubation while the sod. benzoate utilization was negative. 4. The survival range of temperature was from $10^{\circ}C\;to\;40^{\circ}C$. 5. Dulcitol, galactose, glycerol, lactose, maltose, mannitol, raffinose, rhamnose, sorbitol, trehalose and xylose fermentations were not observed up to 28 days, while the fermentation of glucose and inositol were positive.