河川の樹林化に対するマイコライザの影響の評価と河川樹林化モデルへの導入

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I have collected soil from river banks. Seed of perennial ryegrass (Lolium perenne), which is a very common plant in riverbank habitat, were grown in the riverbank soil with and without mycorrhizal inoculants. Different doses of arsenic (As) (0 ppm, 5 ppm, 10 ppm, and 20 ppm) were added to the soil. AMF inoculation effectiveness was affected by the levels of arsenic, and it decreased with increasing arsenic concentration is soil. Arsenic dose also affected the growth of plant, especially root growth. Root growth was severely reduced with 20 ppm arsenic, and the plants reached senesce earlier than the control plants. Plants were less stressed (in terms of chlorophyll, ROS, antioxidative enzymes production) when grown with AMF in compared to those without AMF inoculation.