1887

Abstract

The structural gene encoding the 16S rRNA of the new obligate intracellular organism presently designated WSU 86-1044 was sequenced and analysed to establish its phylogenetic relationships. The 16S rDNA sequence was most closely related to those of chlamydial species, having 84·7–85·3 % sequence similarity, while it had 72·4–73·2% similarity with rickettsia-like organisms. When the sequences of the four species of chlamydiae ( and ) were compared, they had > 93% sequence similarity indicating that WSU 86-1044 was not close enough to be in the same family as current members. However, based on the 84·7–85·3% 16S rDNA sequence similarity of WSU 86-1044 and other previously described characteristics, WSU 86-1044 belongs to a novel family within the order hence, the proposal of fam. nov., gen. nov., sp. nov.

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1999-04-01
2024-10-12
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