title: Pigment composition and plastid structure in leaves of carotenoid mutants of maize.
abstract: In monogenic, recessive chloroplast mutants of maize which contain chlorophylls, and lycopene or χ-carotene but no normal carotenoids, great variability in the size of plastids was associated with a number of ultrastructural abnormalities. In the mutant accumulating lycopene some plastids contain dense bundles of lamellae, whereas the chloroplasts of the χ-carotene mutant show poor thylakoid development. Neither of the mutants was able to form normal grana.A comparison of chlorophyll/carotenoid ratios in different chloroplast fractions of normal and mutant leaves showed that plastids of small size and delicate structure contain relatively less chlorophyll than fully differentiated chloroplasts.
authors: Department of Plant Physiology, Eotvös University, Budapest, Hungary.
authors: A
authors: A
authors: Faludi-Dániel
authors: L
authors: L
authors: Fridvalszky
authors: I
authors: I
authors: Gyurján