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

我从河岸收集土壤。以河岸生境中常见的多年生黑麦草（Lolium perenne）种子为研究对象，分别在河岸土壤中添加和不添加菌根接种剂。不同剂量的砷（As） （0 ppm, 5 ppm， 10 ppm和20 ppm）被添加到土壤中。接种AMF的效果受土壤中砷含量的影响，随土壤中砷含量的增加而降低。砷剂量对植物的生长也有影响，尤其是对根的生长有影响。砷浓度为20 ppm时，根系生长受到严重抑制，植株比对照植株提早衰老。与未接种AMF的植株相比，接种AMF的植株在叶绿素、活性氧、抗氧化酶生产方面受到的胁迫较小。

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.