1. Reduction of gibberellin by low temperature disrupts pollen development in rice.

    Plant Physiology 164(4):2011 (2014) PMID 24569847 PMCID PMC3982758

    Microsporogenesis in rice (Oryza sativa) plants is susceptible to moderate low temperature (LT; approximately 19°C) that disrupts pollen development and causes severe reductions in grain yields. Although considerable research has been invested in the study of cool-temperature injury, a full unde...
  2. Community structures of Mesostigmata, Prostigmata and Oribatida in broad-leaved regeneration forests and conifer plantations of various ages.

    Experimental and Applied Acarology 59(4):391 (2013) PMID 23011106

    The community structures of Mesostigmata, Prostigmata, and Oribatida in the soil of broad-leaved regeneration forests and conifer plantations of various ages were assessed alongside soil and plant environmental variables using three response metrics (density, species richness, and species-abunda...
  3. Simple models for soilCO2, CH4,andN2Ofluxes calibrated using a Bayesian approach and multi-site data

    Ecological Modelling 222(7):1283 (2011)

    Research highlights ► We developed simple models for soil CO 2, N 2O efflux, and CH 4 uptake in forest soils. ► We described each gas flux in terms of three functions. ► Inputs are soil physiochemical properties, WFPS and soil temperature. ► We used multi-site data an...
  4. Increasing trends of soil greenhouse gas fluxes in Japanese forests from 1980 to 2009.

    Scientific reports 1:116 (2011) PMID 22355633 PMCID PMC3216597

    Forest soils are a source/sink of greenhouse gases, and have significant impacts on the budget of these terrestrial greenhouse gases. Here, we show climate-driven changes in soil GHG fluxes (CO₂ emission, CH₄ uptake, and N₂O emission) in Japanese forests from 1980 to 2009, which were estimated u...
  5. Tissue-specific auxin signaling in response to temperature fluctuation.

    Plant Signaling & Behavior 5(11):1510 (2010) PMID 21051957 PMCID PMC3115269

    Auxin levels are well regulated in cells and tissues by both transport and local biosynthesis, and its distribution is important for the modulation of cell proliferation, differentiation, development, tropisms and high-temperature response. Activation of auxin biosynthesis with increased tempera...
  6. Auxins reverse plant male sterility caused by high temperatures.

    PNAS 107(19):8569 (2010) PMID 20421476

    With global warming, plant high temperature injury is becoming an increasingly serious problem. In wheat, barley, and various other commercially important crops, the early phase of anther development is especially susceptible to high temperatures. Activation of auxin biosynthesis with increased t...
  7. Inhibitory effect of yogurt on aberrant crypt foci formation in the rat colon and colorectal tumorigenesis in RasH2 mice.

    Experimental Animals 59(4):487 (2010) PMID 20660995

    The inhibitory effects of yogurt consisting of milk fermented by Lactobacillus delbrueckii subsp. bulgaricus strain 2038 and Streptococcus salivarius subsp. thermophilus strain 1131 on formation of colonic aberrant crypt foci (ACF) in rats and also on development of colorectal tumors in transgen...
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  8. The two male gametes share equal ability to fertilize the egg cell inArabidopsis thaliana

    Current Biology 19(1):R19 (2009) PMID 19138583

    The seed of a flowering plant develops from an ovule containing two distinct female gametes — the egg cell and the central cell — that are fertilized by a pair of non-motile sperm cells conveyed by the pollen tube. With a few exceptions [1], the two sperm cells, derived from a symmet...
  9. The two male gametes share equal ability to fertilize the egg cell inArabidopsis thaliana

    Current Biology 19(1):R19 (2009) PMID 19138583

    The seed of a flowering plant develops from an ovule containing two distinct female gametes — the egg cell and the central cell — that are fertilized by a pair of non-motile sperm cells conveyed by the pollen tube. With a few exceptions [1], the two sperm cells, derived from a symmet...
  10. Retinoblastoma and its binding partner MSI1 control imprinting in Arabidopsis.

    PLoS Biology 6(8):e194 (2008) PMID 18700816 PMCID PMC2504488

    Parental genomic imprinting causes preferential expression of one of the two parental alleles. In mammals, differential sex-dependent deposition of silencing DNA methylation marks during gametogenesis initiates a new cycle of imprinting. Parental genomic imprinting has been detected in plants an...
  11. Fine root dynamics in a Japanese cedar (Cryptomeria japonica) plantation throughout the growing season

    Forest Ecology and Management 225(1):278 (2006)

    To elucidate the dynamics of fine roots and root tips, which are key components in water and nutrient uptake by plants, sequential soil coring was conducted in a 28-year-old Japanese cedar ( Cryptomeria japonica) plantation in the northern part of the Kanto plain, Japan. Biomass, necr...
  12. Collembolan community dynamics during deciduous forests regeneration in Japan

    Pedobiologia 50(2):117 (2006)

    The structure and feeding group composition of collembolan communities were studied in secondary deciduous forests of different ages to investigate the collembolan community response to environmental changes associated with forest cycles. The study was carried out at eight sites forming a c...
  13. DrosophilaNedd4 Regulates Endocytosis of Notch and Suppresses Its Ligand-Independent Activation

    Current Biology 14(24):2228 (2004)

    Background: Ligand-induced proteolytic cleavage and internalization of the plasma membrane receptor Notch leads to its activation. Ligand-independent, steady-state internalization of Notch, however, does not lead to activation. The mechanism by which downstream effectors discriminate b...
  14. Drosophila Nedd4 regulates endocytosis of notch and suppresses its ligand-independent activation.

    Current Biology 14(24):2228 (2004) PMID 15620649

    Ligand-induced proteolytic cleavage and internalization of the plasma membrane receptor Notch leads to its activation. Ligand-independent, steady-state internalization of Notch, however, does not lead to activation. The mechanism by which downstream effectors discriminate between these bipartite...
  15. Methane oxidation in Japanese forest soils

    Soil Biology and Biochemistry 32(6):769 (2000)

    To evaluate the CH 4 uptake rate in Japanese deciduous and coniferous evergreen forest soils, the CH 4 flux and CH 4 concentration in soil gas were measured at seven sites in central Japan. The CH 4 uptake potential was calculated from incubation of soil cores. The C...