DEVELOPMENT INTO THE FUNCTIONAL CHLOROPLAST INVOLVES A RECEPTOR-LIKE KINASE IN GOLGI VESICLES IN ARABWOPSIS

摘要

Chloroplast development in higher plants is regulated by intrinsic developmental pathways and extrinsic environmental signals for organ-specific expression and photomorphogenesis. Expression of photosynthesis genes encoded in both nuclear and plastidgenomes are suppressed in non-green cells such as in roots and cultured calli, whereas the genes are highly expressed in green organs such as leaves. Mechanisms underlying the green organ-specific expression of nuclear genes have been analyzed focusing on DNA structures reflected by base modification, as-acting elements of promoter regions, frans-acting factors associated with transcriptional machinery, RNA stability, and translation (Kobayashi 1991). However, we are still far from systematic understanding of the entire mechanisms.