“…The ultra-weak photon emission is closely related to various types of factors, such as exposure to exogenous toxins [7,8], pathogen attack [9,10], temperature fluctuations [11][12][13], acute stress [14][15][16][17], drought/flood [18], mechanical injuries [19][20][21], and exogenous reactive oxygen species (ROS) induced oxidative stress [5,[22][23][24][25][26][27][28][29][30]. Thus, ultra-weak photon emission bears the potential to be employed in diagnostics of health-care, detecting the quality of food [31,32], and agriculture [8,17].…”