Phylogenetic analysis of cpn60 gene from locally isolated Acinetobacter baumannii

2018 ◽  
Vol 59 (1A) ◽  
Viruses ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1688
Author(s):  
Olga Yu. Timoshina ◽  
Mikhail M. Shneider ◽  
Peter V. Evseev ◽  
Anastasia S. Shchurova ◽  
Andrey A. Shelenkov ◽  
...  

Acinetobacter baumannii appears to be one of the most crucial nosocomial pathogens. A possible component of antimicrobial therapy for infections caused by extremely drug-resistant A. baumannii strains may be specific lytic bacteriophages or phage-derived enzymes. In the present study, we observe the biological features, genomic organization, and phage–host interaction strategy of novel virulent bacteriophage Aristophanes isolated on A. baumannii strain having K26 capsular polysaccharide structure. According to phylogenetic analysis phage Aristophanes can be classified as a representative of a new distinct genus of the subfamily Beijerinckvirinae of the family Autographiviridae. This is the first reported A. baumannii phage carrying tailspike deacetylase, which caused O-acetylation of one of the K26 sugar residues.


2019 ◽  
Vol 6 (7) ◽  
Author(s):  
Ella M Meumann ◽  
Nicholas M Anstey ◽  
Bart J Currie ◽  
Kim A Piera ◽  
Robert Baird ◽  
...  

Abstract Community-onset bacteremic Acinetobacter baumannii pneumonia recurred in 3 of 30 (10%) patients followed prospectively, all with ongoing hazardous alcohol intake, 3–56 months after initial pneumonia. Paired isolates underwent whole-genome sequencing. Phylogenetic analysis showed that recurrence strains were all distinct from preceding strains, indicating reinfection in susceptible individuals rather than relapse.


2019 ◽  
Vol 1 (1A) ◽  
Author(s):  
Zaaima Al-Jabri ◽  
Roxana Zamudio ◽  
Eva Horvath-Papp ◽  
Joseph D. Ralph ◽  
Zakariya Al-Muharrami ◽  
...  

2020 ◽  
Vol 141 ◽  
pp. 39-46
Author(s):  
MD Dorjievna Batueva ◽  
X Pan ◽  
J Zhang ◽  
X Liu ◽  
W Wei ◽  
...  

In the present study, we provide supplementary data for Myxidium cf. rhodei Léger, 1905 based on morphological, histological and molecular characterization. M. cf. rhodei was observed in the kidneys of 918 out of 942 (97%) roach Rutilus rutilus (Linnaeus, 1758). Myxospores of M. cf. rhodei were fusiform with pointed ends, measuring 12.7 ± 0.1 SD (11.8-13.4) µm in length and 4.6 ± 0.1 (3.8-5.4) µm in width. Two similar pear-shaped polar capsules were positioned at either ends of the longitudinal axis of the myxospore: each of these capsules measured 4.0 ± 0.1 (3.1-4.7) µm in length and 2.8 ± 0.1 (2.0-4.0) µm in width. Polar filaments were coiled into 4 to 5 turns. Approximately 18-20 longitudinal straight ridges were observed on the myxospore surface. The suture line was straight and distinctive, running near the middle of the valves. Histologically, the plasmodia of the present species were found in the Bowman’s capsules, and rarely in the interstitium of the host. Phylogenetic analysis revealed that M. cf. rhodei was sister to M. anatidum in the Myxidium clade including most Myxidium species from freshwater hosts.


Sign in / Sign up

Export Citation Format

Share Document