rbc (EC 4.1.1.39) is a bifunctional enzyme involved in carbon fixation. It consists of eight chloroplast-encoded large subunits containing the active site and eight nuclear-encoded small subunits required for enzyme assembly and function (Akazawa et al., 1984). We report the isolation and analysis of a cDNA clone for the rbcS from Malus (Table I). A Malus leaf cDNA library (from an unclassified...

Cedar-apple rust (Gymnosporangium yamadai Miyabe) is a fungal disease that causes substantial injury to apple trees and results in fruit with reduced size and quality and a lower commercial value. The molecular mechanisms underlying the primary and secondary metabolic effects of rust spots on the leaves of Malus apple cultivars are poorly understood. Using HPLC, we found that the contents of fl...