scholarly journals Comparative analysis of metagenomes from three methanogenic hydrocarbon-degrading enrichment cultures with 41 environmental samples

2015 ◽  
Vol 9 (9) ◽  
pp. 2028-2045 ◽  
Author(s):  
Boonfei Tan ◽  
S Jane Fowler ◽  
Nidal Abu Laban ◽  
Xiaoli Dong ◽  
Christoph W Sensen ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Environmental Samples ◽  
Enrichment Cultures

scholarly journals Different Genetic Supports for thetet(S) Gene in Enterococci

2012 ◽  
Vol 56 (11) ◽  
pp. 6014-6018 ◽  
Author(s):  
Carla Novais ◽  
Ana R. Freitas ◽  
Eduarda Silveira ◽  
Fernando Baquero ◽  
Luísa Peixe ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Environmental Samples ◽  
Chromosomal Location ◽  
Genetic Elements ◽  
S Gene ◽  
Human Animal

ABSTRACTThe diversity oftet(S) genetic contexts of 13 enterococci from human, animal, and environmental samples from different geographical areas is reported. Thetet(S) gene was linked to either CTn6000variants of chromosomal location or composite platforms flanked by IS1216located on plasmids (∼40 to 115 kb). The comparative analysis of alltet(S) genetic elements available in the GenBank databases suggests that CTn6000might be the origin of a variety oftet(S)-carrying platforms that were mobilized to different plasmids.

Comparative analysis of tertiary alcohol esterase activity in bacterial strains isolated from enrichment cultures and from screening strain libraries

2011 ◽  
Vol 90 (3) ◽  
pp. 929-939 ◽  
Author(s):  
Susanne Herter ◽  
Giang-Son Nguyen ◽  
Mark L. Thompson ◽  
Fabian Steffen-Munsberg ◽  
Frieder Schauer ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Esterase Activity ◽  
Tertiary Alcohol ◽  
Bacterial Strains ◽  
Enrichment Cultures

Assay of Salmonella in enrichment cultures of foods, feeds and environmental samples by the polymyxin-cloth enzyme immunoassay1Contribution no.: 97-002.1

1997 ◽  
Vol 37 (2-3) ◽  
pp. 183-188 ◽  
Author(s):  
Burton W Blais ◽  
Pui Lan Chan ◽  
Lucille M Phillippe ◽  
Brian W Brooks ◽  
Satoko Hayashi ◽  
...  
Keyword(s):  
Environmental Samples ◽  
Enrichment Cultures

scholarly journals Comparative analysis of current diagnostic PCR assays in detecting pathogenic Leptospira isolates from environmental samples

2019 ◽  
Vol 12 (10) ◽  
pp. 472
Author(s):  
VasanthaKumari Neela ◽  
May-Ling Yap ◽  
Zamberi Sekawi ◽  
Hui-Yee Chee ◽  
HanKiat Alan Ong
Keyword(s):  
Comparative Analysis ◽  
Environmental Samples ◽  
Pathogenic Leptospira ◽  
Diagnostic Pcr ◽  
Pcr Assays

scholarly journals In Vitro Susceptibility and Florfenicol Resistance in Citrobacter Isolates and Whole-Genome Analysis of Multidrug-Resistant Citrobacter freundii

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Wangxiao Zhou ◽  
Qianqian Chen ◽  
Changrui Qian ◽  
Kai Shen ◽  
Xinyi Zhu ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Resistance Genes ◽  
Environmental Samples ◽  
Multidrug Resistant ◽  
Molecular Characteristics ◽  
Published Data ◽  
Citrobacter Freundii ◽  
Whole Genome Analysis ◽  
In Vitro Susceptibility

The genus Citrobacter is an opportunistic pathogen causing infections in animals, and the published data for its resistance to florfenicol are scarce. In this study, we investigated the antimicrobial susceptibility and molecular characteristics of florfenicol resistance genes among Citrobacter isolates from animal and relevant environmental samples and conducted a comparative analysis of a multidrug-resistant Citrobacter freundii strain isolated from a rabbit. Among 20 Citrobacter strains isolated from animal samples, resistance was most commonly observed to ampicillin (100%), tetracycline (75%), streptomycin (65%), florfenicol (60%), chloramphenicol (60%), and aztreonam (50%), while all the strains found in environmental samples were resistant to few antibiotics. The florfenicol resistance gene floR was detected in 12 isolates (48%, 12/25) from animal samples, and all of the floR-positive isolates were resistant to florfenicol with minimum inhibitory concentration (MIC) values ≥256 μg/mL. Sequencing and comparative analysis of the plasmids from a multidrug-resistant C. freundii isolate named R47 showed that the floR-containing region in the plasmid pR47-54 was a truncated transposon-like structure and could be found on both plasmids and chromosomes of bacteria of either animal or human origin. Furthermore, a range of antimicrobial and metal resistance genes associated with mobile genetic elements could be identified in pR47-54 and the other plasmid pR47-309 of C. freundii R47. These results provide in-depth views into the phenotypic and molecular characteristics of Citrobacter isolates recovered from animal and relevant environmental samples, as well as highlight the role horizontal gene transfer plays in the dissemination of plasmid-encoded resistance genes.

Sign in / Sign up

Export Citation Format

Share Document