Phylogenetic diversity of the Rickettsiae

¹Department of Microbiology, University of Illinois, Urbana 61801.

|August 1, 1989

Abstract:

Small subunit rRNA sequences have been determined for representative strains of six species of the family Rickettsiaceae: Rickettsia rickettsii, Rickettsia prowazekii, Rickettsia typhi, Coxiella burnetii, Ehrlichia risticii, and Wolbachia persica. The relationships among these sequences and those of other eubacteria show that all members of the family Rickettsiaceae belong to the so-called purple bacterial phylum. The three representatives of the genus Rickettsia form a tight monophyletic cluster within the alpha subdivision of the purple bacteria. E. risticii also belongs to the alpha subdivision and shows a distant yet specific relationship to the genus Rickettsia. However, the family as a whole is not monophyletic, in that C. burnetii and W. persica are members of the gamma subdivision. The former appears to show a specific, but rather distant, relationship to the genus Legionella.

Related Experiment Videos

Phylogenetic diversity of the Rickettsiae

Related Concept Videos

Phylogenetic measurement in procaryotes by primary structural characterization.

A Phylogenetic Analysis of Lactobacilli, Pediococcus pentosaceus and Leuconostoc mesenteroides.

The acceptability of the female condom: perspectives of family planning providers in New York City, South Africa, and Nigeria.

Efficacy and safety of sodium phosphate tablets compared with PEG solution in colon cleansing: two identically designed, randomized, controlled, parallel group, multicenter phase III trials.

Identification of HLA-B27-restricted peptides from the Chlamydia trachomatis proteome with possible relevance to HLA-B27-associated diseases.

Association of olanzapine-induced weight gain with an increase in body fat.

Loss of the Ap4A hydrolase YqeK impairs stress adaptation and virulence gene expression in Staphylococcus aureus.

FlgJ cell-wall hydrolyzing activity enhances, but is not required, for flagellum assembly in Salmonella enterica.

Functional diversity of accessory factors of the type VI secretion system.

Pseudomonas aeruginosa: a model system for studying the behavior of unbiased flagellar motors.

Discovery of PilU as a second type IV pilus retraction motor in Myxococcus xanthus.

High levels of antisense transcription from numerous genes in the obligate intracellular bacterium Orientia tsutsugamushi.

Unveiling the link between oral microbial α-diversity, advanced cardiovascular-kidney-metabolic syndrome, and mortality.

Hardwired survival algorithms: RelBE1 and MadR1 couple carbon state to metabolic persistence in Mycobacterium tuberculosis.

A Multilocus Nanopore eDNA Workflow for Red Algal Diversity Assessment in an Algal Reef System.

Lipid-manager autophagy proteins ATG2 and ATG9 regulate extracellular vesicle secretion via amphisome biogenesis and cell lipidome modulation.

Microbial succession drives quality deterioration in refrigerated golden pompano (Trachinotus ovatus): regulatory network of dominant spoilage microbiota on characteristic biomarkers.

Bacterial dehalogenases for organohalide and organofluorine remediation: Mechanistic insights, evidence gaps, and future relevance to GenX treatment.

Related Experiment Videos

Phylogenetic diversity of the Rickettsiae

Abstract:

Related Concept Videos

Related Articles