| Autor: |
Vandekerckhove TT; University of Ghent, Department of Physiology, Biochemistry and Microbiology, Laboratory of Microbiology, K.L. Ledeganckstraat 35, B-9000, Ghent, Belgium. tom.vandekerckhove@rug.ac.be, Watteyne S, Willems A, Swings JG, Mertens J, Gillis M |
| Jazyk: |
angličtina |
| Zdroj: |
FEMS microbiology letters [FEMS Microbiol Lett] 1999 Nov 15; Vol. 180 (2), pp. 279-86. |
| DOI: |
10.1111/j.1574-6968.1999.tb08807.x |
| Abstrakt: |
Wolbachia pipientis are intracellular, transovarially inherited alpha-Proteobacteria in invertebrates. Four major Wolbachia groups exist: A, B (contained in divergent arthropods), C and D (harbored by Nematoda). By means of transmission electron microscopy, we observed Wolbachia-like bacteria in a primitive insect, Folsomia candida (Hexapoda, Collembola, Isotomidae). 16S rDNA analysis proved them to constitute a novel lineage, henceforth named group E, in the wolbachial phylogenetic tree. It shares 97.8% 16S rDNA homology with its nearest neighbors, groups A and B, which diverged from it more recently. We propose (i) a new taxon E for the Wolbachia strain in F. candida, (ii) that the single-described Wolbachia pipientis fall apart into at least three species: C, D and the large E-A-B complex. F. candida's group E Wolbachia rekindle the question about invasive capacities of free-living ancestral wolbachiae and horizontal transfer. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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