BLAKELY L M, CHESSIN M
Science. 1959 Aug 28;130(3374):500-1. doi: 10.1126/science.130.3374.500-a.
Ultraviolet irradiation of kidney-bean leaves results in the disappearance of chloroplasts from guard cells. The evidence indicates that ultraviolet irradiation causes plastid breakdown indirectly through an effect on guard-cell metabolism.