Low endotoxic activity of lipopolysaccharides isolated from Bradyrhizobium, Mesorhizobium, and Azospirillum strains
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چکیده
منابع مشابه
Studies on lipopolysaccharides isolated from strains of Neisseria gonorrhoeae.
Lipopolysaccharides, extracted by phenol-water from five strains fo Neisseria gonorrhoeae, were purified by treatment with ribonuclease followed by multiple washes. These preparations were fatal to mice when administered in submicrogram amounts with actinomycin D, the LD50 values varying from 4 to 16 mug/kg. Analyses showed that all preparations contained glucose, galactose, glucosamine, heptos...
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Lipopolysaccharides of two Mesorhizobium species of different host specificity were compared: M. huakuii and M. ciceri. M. huakuii sp. was represented by five strains with special consideration of M. huakuii IFO 15243(T). SDS/PAGE profiles revealed that all M. huakuii LPS preparations contained low molecular mass fractions (LPS-II) of the same molecular size. All of lipopolysaccharides containe...
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The lipopolysaccharide (LPS) of Bradyrhizobium japonicum 61A123 was isolated and partially characterized. Phenol-water extraction of strain 61A123 yielded LPS exclusively in the phenol phase. The water phase contained low-molecular-weight glucans and extracellular or capsular polysaccharides. The LPSs from B. japonicum 61A76, 61A135, and 61A101C were also extracted exclusively into the phenol p...
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Lactobacillus species play an important role in gastrointestinal (GI) tract function, intestinal microbiota balance, and the immune system activity by exerting a strong activity against many intestinal pathogens. The aim of this study was to isolate Lactobacillus species from fecal samples, investigate their antimicrobial properties, and characterixe their bacteriocins encoding genes. 48 fecal ...
متن کاملEvaluation of Safety Aspects and Antagonistic Activity of Enterococcus Strains Isolated from Traditional Pot Cheese
Background & objectives: Safety control of traditional raw milk cheese such as Pot cheese is of special importance. Although enterococci can play beneficial probiotic or technological properties in cheese and their use in food is the subject of debate due to evidence of pathogenicity and antibiotic resistance. Method: In the present study, after isolation and morphological and biochemical iden...
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ژورنال
عنوان ژورنال: Microbiology and Immunology
سال: 2010
ISSN: 0385-5600
DOI: 10.1111/j.1348-0421.2010.00269.x