obsolete primary charge separation in photosystem I (obsolete GO:0009770)
OBSOLETE. Energized reaction-center P700 chlorophylls on photosystem I donate an electron to a loosely bound Quinone acceptor molecule X, on the stromal surface of the thylakoid membrane. The result is charge separation; a negative charge on the stromal side of the thylakoid membrane and a positive charge on the luminal side.