Candidatus Rhabdochlamydia crassificans, an intracellular bacterial pathogen of the cockroach Blatta orientalis (Insecta: Blattodea).

Détails

ID Serval
serval:BIB_6CD852C73BB4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Candidatus Rhabdochlamydia crassificans, an intracellular bacterial pathogen of the cockroach Blatta orientalis (Insecta: Blattodea).
Périodique
Systematic and applied microbiology
Auteur⸱e⸱s
Corsaro D., Thomas V., Goy G., Venditti D., Radek R., Greub G.
ISSN
0723-2020
Statut éditorial
Publié
Date de publication
04/2007
Peer-reviewed
Oui
Volume
30
Numéro
3
Pages
221-8
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't - Publication Status: ppublish
Résumé
The genus Rickettsiella comprises various intracellular bacterial pathogens of arthropods, exhibiting a chlamydia-like developmental cycle. Species may be divided into two main groups, the R. popilliae-R. grylli group and the R. chironomi group. Previous phylogenetic studies based on the 16S ribosomal RNA encoding gene showed that two Rickettsiella species, one from each group, belong in reality to two distantly related lineages, the gamma-Proteobacteria (R. grylli) and the Chlamydiales ('Candidatus Rhabdochlamydia porcellionis', a pathogen of terrestrial isopods). In the present work, the 16S rDNA sequence of another Rickettsiella-like species, causing abdominal swelling to its cockroach host Blatta orientalis, was determined and phylogenetic analysis performed. Identical 16S rDNA sequences of 1495 nucleotides were obtained from fat body and ovary tissues of both healthy and diseased cockroach individuals. The sequence shared only 73% of similarity with R. grylli, but 82-87% with most Chlamydiales, and even 96.3% with 'Candidatus Rhabdochlamydia porcellionis'. Phylogenetic analyses confirmed the affiliation of the cockroach pathogen within the order Chlamydiales, and based on ultrastructural characteristics and genetic analyses, we propose its inclusion in the 'Candidatus Rhabdochlamydia' as a distinct taxon, 'Candidatus Rhabdochlamydia crassificans'. These results extend our knowledge of the phylogenetic diversity of the Chlamydiales.
Mots-clé
Animals, Chlamydiales, Cockroaches, DNA, Bacterial, DNA, Ribosomal, Molecular Sequence Data, Phylogeny, RNA, Ribosomal, 16S
Pubmed
Web of science
Création de la notice
25/01/2008 14:28
Dernière modification de la notice
20/08/2019 14:26
Données d'usage