Abstract

Measurements and analyses of chlorophyll fluoresence transients (induction) curves in vivo have been a powerful tool in monitoring nondestructively the photosynthetic apparatus injury caused by environmental stresses, where the photosystem(PS)II-chlorophyll a fluoresence intensity emitted at 685 nm is measured continuously with time. Recently the intracellular potential¹ and the 685-nm chlorophyll a fluoresence² of intact leaves have been found to change quickly in response to high concentration CO₂ gas exposure, which quick response properties can be used for CO₂ gas sensing.²

© 1995 IEEE