The Growth Responses Of Wheat To Hydrogen Under Salt Stress And The Development Of Weak Signal Detection Systems

Wheat is one of the most important food crops in China,and the soil salinization significantly hampered the quality and yield of wheat,The soil salinization in China is serious,where about 1/15 of cultivated soil are severe salinized which restricts China's crop production,Therefore,seeking an efficient,no-pollution and convenient method to improve the salt resistance of wheat is crucial.In recent years,there some researches have showed hydrogen positive biological effects.However,the study of hydrogen on the biological effects of wheat has not been reported.At the present study,wheat cultivar“linyou 8161”were used as materials,we investigated the wheat development under salt stressthat pretreated with hydrogen-rich water.Bioelectricity is a common physiological phenomenon in the biological world.Plants in the environment continue to accept various stimuli,produce excitement,cause cell membrane depolarization and form electrical signals change.Therefore,plant electrophysiology analysis can be used to explore the message transmission and analys environmental stimulation to plant in time.Previous study suggested that the hydrogen treatment may alter the activiry of H+-ATPase,but if the hydrogen treatment also caused plant electrical signal changes has not been reported.Therefore,it is significant to explore the mechanism of the biological effects of hydrogen on wheat using electrophysiological methods also could be applied to wheat,and an important influence on wheat production practice.The main results are as follows:1.Hydrogen treatment can promote the development of lateral roots and roots of wheat seedlings;2.The content of POD isozymes in leaves of wheat seedlings under salt stress wasdecreased in hydrogen treatment group;3.We developed a weak voltage signal acquisition system in plant;4.A weak current signal acquisition system in plant was developed;5.Hydrogen treatment could increase the concentration of hydrogen ion in the epidermis of wheat seedling roots.