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  1. No Access

    Article

    Phylogenetic study of the species within the family Streptomycetaceae

    Species of the genus Streptomyces, which constitute the vast majority of taxa within the family Streptomycetaceae, are a predominant component of the microbial population in soils throughout the world and have be...

    D. P. Labeda, M. Goodfellow, R. Brown, A. C. Ward, B. Lanoot… in Antonie van Leeuwenhoek (2012)

  2. No Access

    Article

    Gap Junctions and Cochlear Homeostasis

    Gap junctions play a critical role in hearing and mutations in connexin genes cause a high incidence of human deafness. Pathogenesis mainly occurs in the cochlea, where gap junctions form extensive networks be...

    H.-B. Zhao, T. Kikuchi, A. Ngezahayo, T. W. White in The Journal of Membrane Biology (2006)

  3. No Access

    Article

    Phylogeography of Asian weaver ants, Oecophylla smaragdina

    The phylogeography of Oecophylla smaragdina was studied using the mitochondrial cytochrome b gene (Cytb), cytochrome oxidase subunit I (COI), and nuclear long-wavelength opsin gene (LW Rh). Weaver ants were colle...

    N. Azuma, K. Ogata, T. Kikuchi, S. Higashi in Ecological Research (2006)

  4. No Access

    Article

    Response of natural phytoplankton assemblages to solar ultraviolet radiation (UV-B) in the coastal water, Japan

    Variability in the effect of solar ultraviolet radiation (UV-B) on primary productivity of natural phytoplankton assemblages was examined in coastal water off Manazuru Harbor, Sagami Bay, central Japan for two...

    Takashi Sugawara, K. Hamasaki, T. Toda, T. Kikuchi, Satoru Taguchi in Hydrobiologia (2003)

  5. No Access

    Article

    Quantitative and rapid detection of the trichloroethylene-degrading bacterium Methylocystis sp. M in groundwater by real-time PCR

    We developed a method based on real-time PCR for the specific and rapid enumeration of a trichloroethylene-degrading methanotroph, Methylocystis sp. M, with the aim of monitoring the strain in groundwater. A pri...

    T. Kikuchi, K. Iwasaki, H. Nishihara, Y. Takamura… in Applied Microbiology and Biotechnology (2002)

  6. No Access

    Article

    Large amounts of apicoplast nucleoid DNA and its segregation inToxoplasma gondii

    Apicoplasts (apicomplexan plastids) are nonphotosynthetic, secondary endosymbiotic plastids that are found in most apicomplexans. Although these organelles are essential for parasite survival, their functions,...

    M. Matsuzaki, T. Kikuchi, K. Kita, S. Kojima, T. Kuroiwa in Protoplasma (2001)

  7. No Access

    Article

    Reproductive strategy in orphaned colonies of Myrmica kotokui Forel, the Japanese species of the M. ruginodis complex (Hymenoptera, Formicidae)

    The reproductive strategy between queen-right and orphaned colonies of Myrmica kotokui was compared. The ratio of orphaned colonies reached about 30 percent in the field. Although colony size was significantly s...

    T. Kikuchi, F. Tomizuka, S. Higashi in Insectes Sociaux (2000)

  8. No Access

    Article

    Prevention of Osteopenia Induced with a Gonadotropin-Releasing Hormone Agonist in Rats

    We investigated the effects of conjugated estrogens as an add-back replacement drug, incadronate sodium as a bisphosphonate, and alfacalcidol as a vitamin D3 analog on femoral bone mineral density (BMD) and bone...

    S. Sakamoto, S. Sassa, T. Mitamura, H. Kudo, S. Suzuki… in Calcified Tissue International (1999)

  9. No Access

    Article

    A morphological comparison of alates between monogynous and polygynous colonies of Myrmica kotokui in northernmost Japan

    Social structure and sexual size of two populations of Myrmica kotokui were compared. Most of the colonies were polygynous in one population and monogynous in the other. Mean body size of the queens was larger i...

    T. Kikuchi, S. Higashi, T. Murakami in Insectes Sociaux (1999)

  10. No Access

    Article

    Vegetation patterns in relation to micro-scale landforms in hilly land regions

    Spatial structures of landforms as constants affecting vegetation patterns are discussed based on analyses of hilly land regions, mostly in the vicinity of Sendai, northeast Japan. The lower part of a hillslop...

    T. Kikuchi, O. Miura in Vegetatio (1993)

  11. No Access

    Article

    Venoms from six species of marine fish: lethal and hemolytic activities and their neutralization by commercial stonefish antivenom

    A specimen of the stonefish Synanceja verrucosa was captured in Okinawa in March 1988. Live specimens of the scorpionfish Inimicus japonicus were purchased from the Tokyo Central Wholesale Market in November 1988...

    K. Shiomi, M. Hosaka, S. Fujita, H. Yamanaka, T. Kikuchi in Marine Biology (1989)

  12. No Access

    Chapter and Conference Paper

    Squid as Predators on Krill (Euphausia superba) and Prey for Sperm Whales in the Southern Ocean

    This chapter deals with information on the role of squid, and on feeding by sperm whales on squid, in the Antarctic. Seasonal variation in the vertical distribution of krill swarms may possibly affect the dist...

    T. Nemoto, M. Okiyama, N. Iwasaki, T. Kikuchi in Antarctic Ocean and Resources Variability (1988)

  13. No Access

    Chapter

    Guanidinoacetic Acid (GAA) Deficiency and Supplementation in Rats with Chronic Renal Failure (CRF)

    Guanidinoacetic acid (GAA) is the precursor of creatine which is essential in the energy metabolism of muscle and nerve tissue1. GAA is demonstrated to be produced mainly by the kidney2. Therefore, a decrease in ...

    Y. Tsubakihara, N. Iida, S. Yuasa, T. Kawashima, I. Nakanishi, M. Tomobuchi… in Guanidines (1985)

  14. No Access

    Article

    Evidence for the presence of arsenobetaine as a major arsenic compound in the shrimpSergestes lucens

    The major arsenic compound in the shrimpSergestes lucens was isolated and identified as arsenobetaine (CH3)3A S + CH2COO−. Arsenobetaine accounted for 80% of the tota...

    K. Shiomi, A. Shinagawa, T. Igarashi, H. Yamanaka, T. Kikuchi in Experientia (1984)

  15. No Access

    Article

    Study of the life history of Capitella capitata (Polychaeta: Capitellidae) in Amakusa, South Japan including a comparison with other geographical regions

    The life history of Capitella capitata (Fabricius), occurring in Amakusa, South Japan, was studied in detail through field investigations and laboratory experiments. The important life-history characteristics of ...

    H. Tsutsumi, T. Kikuchi in Marine Biology (1984)