title: Light-harvesting pigment-protein complex deficiency in Hosta (Liliaceae).
abstract: A yellow-leaved plastome mutant of Hosta (Hosta sieboldii Ingram complex, Liliaceae) known as 'Wogan Gold' lacks normal granal stacks, but has numerous stroma lamellae extending throughout the chloroplast. The chlorophyll a/b ratio is 0.76 in the mutant and 2.9 in wild type. The mutant contains a qualitatively normal pattern of other photosynthetic co-pigments. SDS-polyacrylamide gel electrophoresis showed a deficiency in the photosystem (PS) II light-harvesting complex. Since PS II is localized mainly in the granal region, the absence of the light-harvesting complex may explain the loss of granal stacking in this mutant.
authors.affiliation: Department of Botany, Miami University, OH 45056, Oxford, USA.
authors.forename: K C
authors.initials: KC
authors.lastname: Vaughn
authors.forename: K G
authors.initials: KG
authors.lastname: Wilson
authors.forename: K D
authors.initials: KD
authors.lastname: Stewart