Takuya Hiramatsu

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BACKGROUND Ozone is a major secondary air pollutant often reaching high concentrations in urban areas under strong daylight, high temperature and stagnant high-pressure systems. Ozone in the troposphere is a pollutant that is harmful to the plant. PRINCIPAL FINDINGS By exposing cells to a strong pulse of ozonized air, an acute cell death was observed in(More)
BACKGROUND In order to understand and generalize the toxic mechanism of cigarette smoke in living cells, comparison of the data between animal systems and other biological system such as microbial and plant systems is highly beneficial. OBJECTIVE By employing the tobacco cells as model materials for cigarette smoke toxicity assay, the impacts of the(More)
The impact of copper ions on the oxidative and calcium signal transductions, leading to cell death in plant cells, have been documented. Copper induces a series of biological and chemical reactions in plant cells including the oxidative burst reflecting the production of reactive oxygen species and the stimulation of calcium channel opening allowing a(More)
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