Search results for "bactericidal activity"
showing 3 items of 13 documents
Surface Components of Escherichia coli That Mediate Resistance to the Bactericidal Activities of Serum and Phagocytes
1985
Microorganisms that enter the animal body, either actively or passively, encounter a battery of nonspecific and specific chemical and cellular defenses whose role is to inactivate and eliminate foreign materials. Successful pathogens have the ability to avoid, resist, or inactivate these defenses for at least the period necessary for initiation of the disease process.
Isolation of Vibrio vulnificus Serovar E from Aquatic Habitats in Taiwan
1999
ABSTRACT The existence of strains of Vibrio vulnificus serovar E that are avirulent for eels is reported in this work. These isolates were recovered from water and oysters and differed from eel virulent strains in (i) fermentation and utilization of mannitol, (ii) ribotyping after Hin dIII digestion, and (iii) susceptibility to eel serum. Lipopolysaccharide of these strains lacked the highest molecular weight immunoreactive bands, which are probably involved in serum resistance.
Elimination of in vitro bacterial contaminants in shoot cultures of ‘MRS 2/5’ plum hybrid by the use of Melia azedarach extracts
2008
The antimicrobial activity of leaf and callus extracts of Melia azedarach was tested on in vitro shoot cultures of the peach rootstoch 'MRS 2/5' (Prunus cerasifera × Prunus spinosa) that were heavily contaminated with Sphingomonas paucimobilis (Sp) and Bacillus circulans (Bc). The extracts were filter-sterilised and added at 0%, 1%, 5%, 10% and 20% to a modified Murashige and Skoog proliferation medium previously autoclave-sterilised. Up to about 17% shoots died with 10-20% extract, except for Sp-contaminated shoots, whose survival was reduced to 50% after treatment with 20% extract. No shoots died with 1% to 5% supplement. The undiluted leaf extract showed bactericidal activity on plated S…