A5067412644- Isotope Analysis in Ecology
- Plant Pathogens and Fungal Diseases
- Soil Carbon and Nitrogen Dynamics
- Plant Taxonomy and Phylogenetics
- Soil Moisture and Remote Sensing
- Clay minerals and soil interactions
- Marine and coastal ecosystems
- Phosphorus and nutrient management
- Photoreceptor and optogenetics research
- Sesquiterpenes and Asteraceae Studies
- Light effects on plants
- Geophysical and Geoelectrical Methods
- Crop Yield and Soil Fertility
- Microwave Engineering and Waveguides
- Geotechnical Engineering and Soil Stabilization
- Soybean genetics and cultivation
- Heavy metals in environment
- Geotechnical and Geomechanical Engineering
- Plant Physiology and Cultivation Studies
- Antenna Design and Analysis
- Ultra-Wideband Communications Technology
- Wheat and Barley Genetics and Pathology
- Advancements in Photolithography Techniques
- Photochromic and Fluorescence Chemistry
- Soil and Environmental Studies
Hokkaido Research Organization
2011-2024
University of Hyogo
2005-2024
Kobe University
2009-2021
Japan Science and Technology Agency
2004-2021
Chiba Prefectural Agriculture and Forestry Research Center Forest Research Institute
2010-2021
Toshima Manufacturing (Japan)
2020
Fukushima Medical University
2017
Graduate School USA
2014-2015
Tokyo Metropolitan University
2010-2011
Saitama Institute of Technology
2008-2009
Colletotrichum fungi belonging to the gloeosporioides species complex include a number of economically important postharvest pathogens that often cause anthracnose. Until now, different within this group could only be distinguished from one another reliably using multigenic phylogenetic analyses. Using comparative genomics approach, we developed marker can differentiate fructicola, aenigma and siamense C. based on PCR amplicon size differences. When used classify 115 isolates collected over...
In response to decreases in the assimilation efficiency of CO2, plants oxidize reaction center chlorophyll (P700) photosystem I (PSI) suppress reactive oxygen species (ROS) production. hydro-cultured sunflower leaves experiencing essential mineral deficiencies, we analyzed following parameters that characterize PSI and PSII: (1) reduction-oxidation states P700 [Y(I), Y(NA), Y(ND)]; (2) relative electron flux PSII [Y(II)]; (3) reduction state primary acceptor PSII, QA (1 - qL); (4)...
Abstract The addition of biochar to the forest floor should facilitate efficient carbon sequestration. However, little is known about how effects litter decomposition, which related and nutrient dynamics in ecosystems. This study evaluated effect on leaf decomposition a ecosystem. To examine whether was stimulated above below biochar, litterbag experiments were carried out for 3 years field site where added at rate 0, 5 10 t ha − ¹ (C0, C5 C10 plots) temperate oak forest, Japan. Biochar...
Reports of 68 new chromosome counts attributed to 53 species from 25 genera Eupatorieae the Asteraceae, based mostly on determinations mitotic materials, include first for 2 (Acanthostyles and Lepidesmia) 14 reports 8 species.B chromosomes are reported 4 12 species.Karyotype analyses made 20 one Heliantheae showed that total karyotypic lengths taxa with n = 16-19 helianthoid eupatorioid comparable those some 10.This is contrary previous hypothesis higher numbers were derived 10 by...
A five-step sequential extraction procedure was developed for the partitioning of soil aluminum (Al) into five fractions: exchangeable, weakly organic bound, strongly inorganic non-crystalline and crystalline. The results obtained by method Al were compared with those estimated from single extractions using identical operating conditions applied in each individual fraction. content extracts measured inductively coupled plasma optical emission spectrometry. indicated that first four steps...
Abstract Humic acids (HAs) from 15 different soil samples were added to Czapek-Dox media inoculated with Coriolus consors IFO 9078. After 14 d incubation, decolorization of these culture at 600 nm absorbance was measured. The aromaticity, the E 1% value, total acidity, and elemental composition HAs also determined, relationships between chemical properties examined. Percentage ranged 8.8 39.5%. Andisol showed a lower percentage than Inceptisol HAs. highly negative correlations for O / H...
H. Kamogawa and T. Suzuki, J. Chem. Soc., Commun., 1985, 525 DOI: 10.1039/C39850000525
Amendment by biochar made thermal degradation of biomass is expected to enhance carbon sequestration through stimulating assimilation plants. We clarified the effect amendment on photosynthesis trees in forest ecosystems. Biochar was applied young oak (Quercus serrata) temperate deciduous at rates 0, 5, 10 and 20 Mg ha−1 four plots (C0, C5, C10, C20). The variation photosynthetic parameters (the maximum rate: Pmax, carboxylation Vcmax potential rate electron transport: Jmax) leaf traits...
To clarify the adaptation strategies of cold-tolerant wheat against global warming, this study examined effects daily temperature, precipitation, and sunshine duration on yield in Hokkaido, Japan, over 13 years (2011–2023). Yield components were also analyzed 20 (2004–2023). The number snow-cover days decreased by about 24 20-year period. As a result, growth overwintered accelerated, with heading maturity plants advancing 8 5 days, respectively, grain-filling period extending from 44 to 48...
Four bianthraquinones and two monoanthraquinones were isolated as the major soil anthraquinones from a volcanic ash in Japan. They identified new natural product 5,5'-biphyscion (named hinakurin) (3) five known compounds, chrysotalunin (1), (-)-7,7'-biphyscion (2), microcarpin (4), chrysophanol (5), physcion (6) using MS, 1D NMR, 2D NMR techniques. Although dimers (1-4) are rarely found products, they, along with 5 6, ubiquitous predominant over other various soils Japan Nepal.
Abstract Humic (HAs) and fulvic acids (F As) were obtained from A horizons of four different soils (a Fibric Histosol, Dystric Cambisol, Umbric Andosol, buried Andosol) by the sequential extraction with pyrophosphate solutions at pHs (i.e. pH 3, 5, 7, 9, 11, 13). The yield FAs decreased increase in values 3 to then, increased or remained constant 9 13. distribution pattern HAs differed among soils, total for extracted extending acid neutral region (3–7) was equal higher than that alkaline...
Abstract The FT-IR and 1H NMR spectra of humic acids, which were obtained from four soils different types (a Fibric Histosol, Dystric Cambisol, Umbric Andosol, buried Andosol) by sequential extraction with pyrophosphate solutions at pH values (i.e. 3, 5, 7, 9, 11, 13), measured. shape the IR for each acid depended on differences in soil origin rather than values. acids Histosol Cambisol showed typical absorption associated lignin. Andosol characterized disappearance assigned to aliphatic C-H...