Symbiotic bacteria associated with stomach discs of human lice.

  title={Symbiotic bacteria associated with stomach discs of human lice.},
  author={Kayoko Sasaki-Fukatsu and Ryuichi Koga and Naruo Nikoh and K Yoshizawa and Shinji Kasai and Minoru Mihara and Mutsuo Kobayashi and Takashi Tomita and Takema Fukatsu},
  journal={Applied and environmental microbiology},
  volume={72 11},
The symbiotic bacteria associated with the stomach disc, a large aggregate of bacteriocytes on the ventral side of the midgut, of human body and head lice were characterized. Molecular phylogenetic analysis of 16S rRNA gene sequences showed that the symbionts formed a distinct and well-defined clade in the Gammaproteobacteria. The sequences exhibited AT-biased nucleotide composition and accelerated molecular evolution. In situ hybridization revealed that in nymphs and adult males, the symbiont… CONTINUE READING