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Transferable imipenem resistance in Pseudomonas aeruginosa.
- M. Watanabe, S. Iyobe, M. Inoue, S. Mitsuhashi
- Medicine, Biology
- Antimicrobial Agents and Chemotherapy
- 1 January 1991
We isolated an imipenem-resistant strain, GN17203, of Pseudomonas aeruginosa. The strain produced a beta-lactamase that hydrolyzed imipenem. The beta-lactamase was encoded by a 31-MDa plasmid,… Expand
B Chromosomes Have a Functional Effect on Female Sex Determination in Lake Victoria Cichlid Fishes
The endemic cichlid fishes in Lake Victoria are a model system for speciation through adaptive radiation. Although the evolution of the sex-determination system may also play a role in speciation,… Expand
Spot pattern of leopard Danio is caused by mutation in the zebrafish connexin41.8 gene
Leopard, a well‐known zebrafish mutant that has a spotted skin pattern instead of stripes, is a model for the study of pigment patterning. To understand the mechanisms underlying stripe formation, as… Expand
Divergent Selection on Opsins Drives Incipient Speciation in Lake Victoria Cichlids
Divergent natural selection acting on ecological traits, which also affect mate choice, is a key element of ecological speciation theory, but has not previously been demonstrated at the molecular… Expand
Involvement of Delta/Notch signaling in zebrafish adult pigment stripe patterning
The skin pigment pattern of zebrafish is a good model system in which to study the mechanism of biological pattern formation. Although it is known that interactions between melanophores and… Expand
Pigment Pattern in jaguar/obelix Zebrafish Is Caused by a Kir7.1 Mutation: Implications for the Regulation of Melanosome Movement
Many animals have a variety of pigment patterns, even within a species, and these patterns may be one of the driving forces of speciation. Recent molecular genetic studies on zebrafish have revealed… Expand
Archaeal-type rhodopsins in Chlamydomonas: model structure and intracellular localization.
- T. Suzuki, Kenta Yamasaki, +12 authors T. Takahashi
- Biology, Medicine
- Biochemical and biophysical research…
- 14 February 2003
Phototaxis in the unicellular green alga Chlamydomonas reinhardtii is mediated by rhodopsin-type photoreceptor(s). Recent expressed sequence tag database from the Kazusa DNA Research Institute has… Expand
Complete nucleotide sequence of the prophage VT1-Sakai carrying the Shiga toxin 1 genes of the enterohemorrhagic Escherichia coli O157:H7 strain derived from the Sakai outbreak.
Shiga toxins 1 and 2 (Stx1 and Stx2) are encoded by prophages lysogenized in enterohemorrhagic Escherichia coli (EHEC) O157:H7 strains. Lytic growth of the phage particles carrying the stx1 genes… Expand
Melanophore Migration and Survival during Zebrafish Adult Pigment Stripe Development Require the Immunoglobulin Superfamily Adhesion Molecule Igsf11
The zebrafish adult pigment pattern has emerged as a useful model for understanding the development and evolution of adult form as well as pattern-forming mechanisms more generally. In this species,… Expand
Phylogeny of primary photosynthetic eukaryotes as deduced from slowly evolving nuclear genes.
- H. Nozaki, M. Iseki, +4 authors M. Watanabe
- Biology, Medicine
- Molecular biology and evolution
- 1 August 2007
*Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo, Japan; Hayama Center for Advanced Studies, Graduate University for Advanced Studies, Kanagawa, Japan; The… Expand