title: Cellular and ultrastructural changes in mesophyll and bundle sheath cells of maize in response to water stress.
abstract: Ultrastructural changes were correlated with leaf water potential, relative water content, and abscisic acid levels in the leaf. Mesophyll cells were more prone to damage than bundle sheath cells at a leaf water potential of -18.5 bars. Tonoplast breakdown and cell disruption occurred in 25% of the mesophyll cells. On rewatering, these disrupted cells did not recover. In bundle sheath cells, starch, lost at about -13.5 bars leaf water potential, reappeared within 2.5 hours of rewatering.
authors: Plant Physiology Division, Department of Scientific and Industrial Research, Palmerston North, New Zealand.
authors: K L
authors: KL
authors: Giles
authors: M F
authors: MF
authors: Beardsell
authors: D
authors: D
authors: Cohen