Cell wall stress caused by electric charge of the plant cell membrane

According to bi-electric layer model of cell membrane, electricity and mechanics principle, a formula about cell wall stress caused by electric charge of plant cell membrane was produced. The affectation on cell wall stress that was brought by change of plant cell wall thickness or plant cell radius or surface electric charge density of cell membrane was analysed. Results show that the affectation on all direction stress of cell wall is brought by change of surface electric charge density of cell membrane, the increment of cell wall stress on radius direction is more small than the else direction stress, and the cell wall stress diminish in course of cell wall incrassation, and the relation between cell wall stress and cell wall thickness or surface electric charge density of cell membrane is nonlinear, and the bigger the cell, the more the affectation on cell wall stress that is brought by surface electric charge of cell membrane if condition is indeclinable.