scholarly journals Aerococcus, a New Bacterial Genus

1953 ◽  
Vol 8 (3) ◽  
pp. 475-480 ◽  
Author(s):  
R. E. O. Williams ◽  
A. Hirch ◽  
S. T. Cowan
Keyword(s):  
Bacterial Genus

Surveillance of Antibiotic Resistance Among Enterobacteriaceae Strains Isolated in an Infectious Diseases Hospital from Romania

2018 ◽  
Vol 69 (5) ◽  
pp. 1240-1243
Author(s):  
Manuela Arbune ◽  
Mioara Decusara ◽  
Luana Andreea Macovei ◽  
Aurelia Romila ◽  
Alina Viorica Iancu ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Infectious Diseases ◽  
Salmonella Spp ◽  
Resistance Level ◽  
E Coli ◽  
Bacterial Genus ◽  
Antibiotic Resistance Profile ◽  
Carbapenem Resistant ◽  
Invasive Infections ◽  
Klebsiella Spp

The aim of the present study was to characterize the antibiotic resistance profile of enterobacteriaceae strains isolated in Infectious Diseases Hospital Galati, Romania, during 2016, in order to guide the local antibiotic stewardship strategy. There are 597 biological samples with positive cultures for enterobacteriaceae, related to invasive and non-invasive infections. The main bacterial genus were E. coli 62%, Klebsiella spp 15%, Proteus spp 11% and Salmonella spp 6%. Over a half of isolated strains have one or more antibiotic resistance. The resistance level depends on bacterial genus, with highest level found among the rare isolates: Enterobacter spp, Citrobacter spp, Morganella spp and Serratia spp. The rate of MDR was 17.,6% for E. coli, 40.9% for Klebsiella spp and 50.7% for Proteus spp. while the rate of strains producing Extended Spectrum of Beta Lactamase are 7.2% for E. coli, 28.4% for Klebsiella spp and 12.3% for Proteus spp. The carbapenem resistant strains were found in 1.1% cases.

scholarly journals Nigella A ameliorates inflammation and intestinal flora imbalance in DSS induced colitis mice

AMB Express ◽  
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Xingjiang Hu ◽  
Nana Xu ◽  
Xi Yang ◽  
Xi Hu ◽  
Yunliang Zheng ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Chinese Medicine ◽  
Traditional Chinese Medicine ◽  
Inflammatory Response ◽  
Therapeutic Effect ◽  
Antioxidant Activities ◽  
Intestinal Flora ◽  
Signs And Symptoms ◽  
Microbial Composition ◽  
Bacterial Genus

Abstract Nigella A, also named Sieboldianoside A, has been extracted from many kinds of Traditional Chinese Medicine (TCM), such as Nigella glandulifera, Stauntonia chinensis DC., and the leaves of Acanthopanax sieboldianus. Nigella A exhibited potential analgesic, anti-inflammatory, anti-tumor, and antioxidant activities. However, whether Nigella A could treat ulcerative colitis (UC) is still unknown. As saponins always be regarded as the kinds of ingredients that could regulate immunity and intestinal flora. This research aimed to investigate the therapeutic effect of Nigella A on UC and explore its effect on intestinal flora. We noted that Nigella A and Sulfasalazine (SASP) could significantly improve the signs and symptoms, alleviate colonic pathological injury in DSS-induced mice. The changing of many specific bacterial genus such as Lactobacillus, Porphyromonadaceae, Bacteroides and Escherichia might closely related to the recovery of intestinal inflammatory response. This study initially confirmed the therapeutic effect of Nigella A and SASP on DSS-induced colitis by improving the diversity of intestinal microbial composition. Nigella A has the potential to be developed for the treatment of UC and other disorders related to the imbalance of intestinal flora.

scholarly journals Salmonella enterica serovars associated with bacteremia in Canada, 2006–2019

2021 ◽  
Vol 47 (56) ◽  
pp. 259-268
Author(s):  
Sandeep Tamber ◽  
Brendan Dougherty ◽  
Kimberly Nguy
Keyword(s):  
Organ Failure ◽  
Salmonella Enterica ◽  
Surveillance Program ◽  
Bacterial Genus ◽  
Salmonella Infections ◽  
Clinical Presentations ◽  
Salmonella Serovars

Background: Members of the bacterial genus Salmonella cause salmonellosis, a disease with a spectrum of clinical presentations from a self-limiting gastroenteritis to more severe bacteremia, organ failure and sepsis. The genus consists of over 2,600 serological variants (serovars). Important differences in the pathogenesis of Salmonella serovars have been noted. Objective: The purpose of this study was to determine which Salmonella serovars were more likely to be associated with bacteremia in Canada. Methods: Information on the total number of Salmonella infections and blood isolations reported to the National Enteric Surveillance Program (NESP) from 2006 to 2019 was extracted for each serovar. The risk (proportion) and likelihood (odds) of bacteremia were calculated for all serovars. Results: Of the 96,082 Salmonella cases reported to the NESP during the 14-year study period, 4.4% (95% CI: 4.3%–4.6%) were bacteremic. Twenty nontyphoidal Salmonella (NTS) serovars were associated with lower rates of bacteremia compared to all NTS serovars, and 19 NTS serovars were identified as having higher rates. Heidelberg, Oranienburg, Schwarzengrund, Virchow, Panama and Poona among the top 25 most commonly reported serovars in Canada during the study period. Conclusion: The identification of serovars associated with Salmonella bacteremia in Canada is a first step towards understanding differences in pathogenesis and disease presentation.

scholarly journals Karakteristik Genus Bakteri Pada Karkas Ayam Broiler Dari Swalayan di Kota Pontianak

2018 ◽  
Vol 7 (3) ◽  
Author(s):  
Prianti Rahmawati Diah Wulandari Rousdy
Keyword(s):  
Broiler Chicken ◽  
Pathogenic Bacteria ◽  
Chicken Meat ◽  
Bacterial Isolates ◽  
Bacterial Genus ◽  
Chicken Carcass

The availability  of nutrients in chicken carcasses can cause chicken meat to be an excellent medium for the growth of pathogenic and non-pathogenic bacteria. This study aims to determine the characteristics of the bacterial genus in broiler chicken carcasses from supermarkets in Pontianak City. Based on the results of the study found 23 bacterial isolates in broiler chicken carcass samples from supermarkets in Pontianak City, which included members of the Aeromonas, Acetobacter, Alcaligenes, Amphibacillus, Bacillus, Brevibacterium, Camphylobacter, Carnobacterium, Erwinia,  Erysipelothrik, Eubacterium, Hafnia, Kluyvera, Klebsiella, Kurthia, Lactobacillus, Listeria, Proteus, Pseudomonas, Shigella, Sporolactobacillus, Serratia, and  Yersinia.

scholarly journals Phosphoenolpyruvate:glycose phosphotransferase system in species of Vibrio, a widely distributed marine bacterial genus.

1987 ◽  
Vol 169 (11) ◽  
pp. 4893-4900 ◽  
Author(s):  
N D Meadow ◽  
R Revuelta ◽  
V N Chen ◽  
R R Colwell ◽  
S Roseman
Keyword(s):  
Phosphotransferase System ◽  
Bacterial Genus

A robust phylogenetic framework for the bacterial genus Photorhabdus and its use in studying the evolution and maintenance of bioluminescence: A case for 16S, gyrB, and glnA

2010 ◽  
Vol 57 (2) ◽  
pp. 728-740 ◽  
Author(s):  
Scott M. Peat ◽  
Richard H. ffrench-Constant ◽  
Nick R. Waterfield ◽  
Judit Marokházi ◽  
Andras Fodor ◽  
...  
Keyword(s):  
Bacterial Genus ◽  
Phylogenetic Framework

scholarly journals Marseillibacter massiliensis gen. nov., sp. nov., a new bacterial genus isolated from the human gut

2017 ◽  
Vol 16 ◽  
pp. 30-31
Author(s):  
S. Ndongo ◽  
G. Dubourg ◽  
F. Bittar ◽  
C. Sokhna ◽  
P.-E. Fournier ◽  
...  
Keyword(s):  
Human Gut ◽  
Bacterial Genus

scholarly journals Lateral Gene Transfer Dynamics in the Ancient Bacterial Genus Streptomyces

mBio ◽  
2017 ◽  
Vol 8 (3) ◽  
Author(s):  
Bradon R. McDonald ◽  
Cameron R. Currie
Keyword(s):  
Gene Transfer ◽  
Lateral Gene Transfer ◽  
Point Mutations ◽  
Time Span ◽  
Genetic Exchange ◽  
Bacterial Evolution ◽  
Phylogenetic Groups ◽  
Modern Biology ◽  
Genus Streptomyces ◽  
Bacterial Genus

ABSTRACT Lateral gene transfer (LGT) profoundly shapes the evolution of bacterial lineages. LGT across disparate phylogenetic groups and genome content diversity between related organisms suggest a model of bacterial evolution that views LGT as rampant and promiscuous. It has even driven the argument that species concepts and tree-based phylogenetics cannot be applied to bacteria. Here, we show that acquisition and retention of genes through LGT are surprisingly rare in the ubiquitous and biomedically important bacterial genus Streptomyces . Using a molecular clock, we estimate that the Streptomyces bacteria are ~380 million years old, indicating that this bacterial genus is as ancient as land vertebrates. Calibrating LGT rate to this geologic time span, we find that on average only 10 genes per million years were acquired and subsequently maintained. Over that same time span, Streptomyces accumulated thousands of point mutations. By explicitly incorporating evolutionary timescale into our analyses, we provide a dramatically different view on the dynamics of LGT and its impact on bacterial evolution. IMPORTANCE Tree-based phylogenetics and the use of species as units of diversity lie at the foundation of modern biology. In bacteria, these pillars of evolutionary theory have been called into question due to the observation of thousands of lateral gene transfer (LGT) events within and between lineages. Here, we show that acquisition and retention of genes through LGT are exceedingly rare in the bacterial genus Streptomyces , with merely one gene acquired in Streptomyces lineages every 100,000 years. These findings stand in contrast to the current assumption of rampant genetic exchange, which has become the dominant hypothesis used to explain bacterial diversity. Our results support a more nuanced understanding of genetic exchange, with LGT impacting evolution over short timescales but playing a significant role over long timescales. Deeper understanding of LGT provides new insight into the evolutionary history of life on Earth, as the vast majority of this history is microbial.

Detection of the antibacterial effect of Chaetomium cochliodes Palliser CCM F-232 based on agar plugs and unprocessed fungal substances from cultivation media

Biologia ◽  
2016 ◽  
Vol 71 (11) ◽  
Author(s):  
Katarína Chovanová ◽  
Marcel Zámocký
Keyword(s):  
Side Effects ◽  
Antibacterial Effect ◽  
Bacterial Genus ◽  
Highly Effective ◽  
Increasing Demand ◽  
Novel Antibiotics

AbstractThere is an increasing demand for novel antibiotics that are highly effective, but simultaneously reveal minimal side effects. Currently, major sources of antibiotics are found among bacterial genus

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