EFFECT OF PHOSPHATE ON COLICIN V FORMATION BY STRAINS OF ESCHERICHIA COLI / 微生物学通报
Microbiology
;
(12)1992.
Article
in Chinese
| WPRIM
| ID: wpr-683673
ABSTRACT
ColV~+ strains of Escherichia coli produced larger inhibitory zones when these strains grown on nutrient agar containing phosphate after overlaid sensitive indicators. This appears that production of colicin V is increased by the addition of phosphate to nutrient agar. It was sure that stimulation of phosphate to colicin V formation results from its effect in reducing divalent cation levels in nutrient agar since adding EDTA to nutrient agar had the same effect as phosphate, but the addition of Mg~(2+) or Ca~(2+) had the oppsite effect. Therefore nutrient agar supplemented with phosphate can be used to isolate and identificate ColV~+ strains of E. coli.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Microbiology
Year:
1992
Type:
Article
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