Abstract:
:In this work, we assayed the ability of newly prepared indolizine derivates (epimers) 6C and 6A to inhibit the growth of Mycobacterium smegmatis and used them for resistance induction. 6A inhibited the growth of M. smegmatis at a concentration of 100 μg/mL. No inhibitory effect was observed in the presence of 6C. By incubating the bacteria with 6C and 6A, colonies resistant to 6A were observed. Finally, 37 stable resistant strains were isolated. These resistant strains were able to grow on a 5-fold higher concentration of 6A (500 μg/mL) than the minimal inhibitory concentration of the wild type (100 μg/mL), with no growth inhibition. Resistant strains were then tested for cross-resistance to other antibiotics: ampicillin, tetracycline, ciprofloxacin, chloramphenicol, gentamicin, and streptomycin. Determinations of resistance patterns to 6 antibiotics revealed 36 strains that were resistant to at least one drug.
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Olejníková P,Kurucová M,Švorc L,Marchalín Šdoi
10.1139/cjm-2012-0438subject
Has Abstractpub_date
2013-02-01 00:00:00pages
126-9issue
2eissn
0008-4166issn
1480-3275journal_volume
59pub_type
杂志文章abstract::Eighteen gram-negative marine bacteria and two terrestrial species, Escherichia coli and Pseudomonas aeruginosa, were examined for their sensitivity to lysis in distilled water after exposure to a salt solution containing a sea water concentration of Mg2+ (0.05 M) or to 0.5 M NaCl. A spectrum of lytic susceptibility w...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
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journal_title:Canadian journal of microbiology
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journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:
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journal_title:Canadian journal of microbiology
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abstract::Marine shrimp of the species Penaeus monodon were collected from the coastal region (Haroa) of the deltaic Sundarbans of West Bengal, India during the premonsoon period in 1996. Klebsiella pneumoniae was isolated from the alimentary canal and gills of the shrimp as the sole isolate. All 10 isolated strains were resist...
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更新日期:1998-02-01 00:00:00
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