Effect of lincomycin on the dimorphic chloroplasts of Zea mays L. leaves.

The effect of lincomycin treatment on the ultrastructure, and on the absorption and fluorescence emission spectra, of mesophyll and bundle sheath chloroplasts of maize was investigated. The ultrastructural and absorption changes affected mainly the unstacked lamellae (photosystem 1) in the treated mesophyll and bundle sheath plastids, while the fluorescence emission spectra reflect a changed energy transfer between the chlorophyll a forms. The results provide additional evidence for the compositional and developmental similarity of the intergranal lamellae of mesophyll chloroplasts to the membranes of the nearly agranal bundle sheath chloroplasts.