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Article
Temporal Variations Rather than Long-Term Warming Control Extracellular Enzyme Activities and Microbial Community Structures in the High Arctic Soil
In Arctic soils, warming accelerates decomposition of organic matter and increases emission of greenhouse gases (GHGs), contributing to a positive feedback to climate change. Although microorganisms play a key...
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Article
Dynamics of microbial communities and CO2 and CH4 fluxes in the tundra ecosystems of the changing Arctic
Arctic tundra ecosystems are rapidly changing due to the amplified effects of global warming within the northern high latitudes. Warming has the potential to increase the thawing of the permafrost and to chang...
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Article
Vertical distribution of bacterial community is associated with the degree of soil organic matter decomposition in the active layer of moist acidic tundra
The increasing temperature in Arctic tundra deepens the active layer, which is the upper layer of permafrost soil that experiences repeated thawing and freezing. The increasing of soil temperature and the deep...
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Article
Optimization of ethanol extraction of antioxidative phenolic compounds from torrefied oak wood (Quercus serrata) using response surface methodology
A torrefaction treatment process followed by ethanol extraction was applied for extracting antioxidant components from oak wood. Response surface methodology (RSM) was applied to optimize the ethanol extractio...
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Article
Kimchi microflora: history, current status, and perspectives for industrial kimchi production
Kimchi, a traditional Korean food made by the fermentation of vegetables, has become popular globally because of its organoleptic, beneficial, and nutritional properties. Spontaneous kimchi fermentation in uns...
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Article
Isolation of facultatively anaerobic soil bacteria from Ny-Ålesund, Svalbard
Anaerobic conditions in soil commonly occur even in upland environments. Physiological and biogeochemical properties of individual anaerobic bacteria, however, have been poorly understood due to difficulties i...
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Article
Halomonas cibimaris sp. nov., isolated from jeotgal, a traditional Korean fermented seafood
Two moderately halophilic, facultatively aerobic, motile bacteria with flagella, designated strains 10-C-3T and 30-C-3, were isolated from jeotgal, a traditional Korean fermented seafood. Cells of the strains wer...
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Article
Changes in CO2, 13C abundance, inorganic nitrogen, β-glucosidase, and oxidative enzyme activities of soil during the decomposition of switchgrass root carbon as affected by inorganic nitrogen additions
This study was conducted to investigate the effect of inorganic nitrogen (N) and root carbon (C) addition on decomposition of organic matter (OM). Soil was incubated for 200 days with nine treatments (three le...
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Article
Identification of a rice APETALA3 homologue by yeast two-hybrid screening
A cDNA clone OsMADS16 was isolated from the rice young inflorescence cDNA expression library by the yeast two-hybrid screening method with OsMADS4 as bait. We have previously shown that the OsMADS4 gene is a m...