1887

Abstract

Intracellular bacteria were observed in the hepatopancreas of the terrestrial isopod . Comparative 16S rRNA gene sequence analysis and electron microscopic observations were used to determine the taxonomic position of these intracellular bacteria. Phylogenetic analysis and a complex developmental cycle affiliate these bacteria to the order , within which they form a distinctive lineage, close to the family . They share <92 % 16S rRNA gene sequence similarity with their closest relative and <88 % similarity with other members of the order . A specific signature oligonucleotide sequence was identified and used as a probe, enabling the identification of intracellular bacteria in infected hepatopancreatic tissue. According to the distinctive morphology of their elementary bodies, which are rod-shaped rather than spherical and contain translucent oblong structures, their genomic properties and their crustacean host, the name ‘ Rhabdochlamydia porcellionis' is proposed for intracellular bacteria in the hepatopancreas of .

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2004-03-01
2021-04-13
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