Rikihisa, Yasuko


Publications
4

Proposal for ‘Candidatus Mycoplasma haemomuris subsp. musculi’ in mice, and ‘Candidatus Mycoplasma haemomuris subsp. ratti’ in rats

Citation
Harasawa et al. (2015). International Journal of Systematic and Evolutionary Microbiology 65 (Pt_2)
Names
Ca. Mycoplasma haemomuris
Abstract
Mycoplasma haemomuris is causative of infectious anaemia or splenomegaly in rodents. We examined the nucleotide sequences of the non-ribosomal genes, rnpB and dnaK, in strains of the species M. haemomuris detected in small field mice and black rats. rnpB nucleotide sequences in strains of the species

Novel Genetic Variants of Anaplasma phagocytophilum , Anaplasma bovis , Anaplasma centrale , and a Novel Ehrlichia sp. in Wild Deer and Ticks on Two Major Islands in Japan

Citation
Kawahara et al. (2006). Applied and Environmental Microbiology 72 (2)
Names
“Ehrlichia shimanensis”
Abstract
ABSTRACT Wild deer are one of the important natural reservoir hosts of several species of Ehrlichia and Anaplasma that cause human ehrlichiosis or anaplasmosis in the United States and Europe. The primary aim of the present study was to determine whether and what species of Ehrlichia and Anaplasma naturally infect deer in Japan. Blood samples obtained from wild deer on two major

Ultrastructure and phylogenetic analysis of ‘Candidatus Neoehrlichia mikurensis' in the family Anaplasmataceae, isolated from wild rats and found in Ixodes ovatus ticks

Citation
Kawahara et al. (2004). International Journal of Systematic and Evolutionary Microbiology 54 (5)
Names
Ca. Neoehrlichia mikurensis
Abstract
A novel bacterium that infects laboratory rats was isolated from wild Rattus norvegicus rats in Japan. Transmission electron microscopy of the spleen tissue revealed small cocci surrounded by an inner membrane and a thin, rippled outer membrane in a membrane-bound inclusion within the cytoplasm of endothelial cells. Phylogenetic analysis of the 16S rRNA gene sequence of the bacterium found in R. norvegicus rats and Ixodes ovatus ticks in Japan revealed that the organism represents a novel clade