14:30 〜 14:45
▼ [20p-A302-6] Assessment of aquatic plant (Myriophyllum) activity by electric potential and enzymatic activity under heavy metal copper exposure
キーワード：electric potential, Myriophyllum, heavy metal copper
Heavy metal pollution in water is one of the important components of water pollution, which has a very serious threat to the natural environment and eventually to human life and health. Copper is usually present at low concentrations in water. It is an essential micronutrient for animal metabolism. However, Cu exceeding it is critical level might bring about a serious problem for the environment and water pollution, as well as serious toxicological concerns such as vomiting, cramps, convulsions, or even death. In plants, electrical signals are considered as changes in the electric potential (EP). The EP in plants is generated in response to various stimuli, such as wounding, chemicals (e.g., herbicides, plant growth stimulants, and salts), heat, water, and electric shock. One of the most common methods for evaluating the effects of environmental stress on plants is the measurement of chlorophyll, hydrogen peroxide (H2O2) and Catalase (CAT). In this study, we used electrical potential experiments to detect the effect of heavy metal copper on the aquatic plant Myriophyllum, Then comparison with traditional biometric methods. Using electrical potential experiment, we found that plants will be stimulated in heavy metal solution. Conducting both methods, we concluded that the electrical potential method can be a rapid way to observe s environmental stimulus on the plant.