Host: The Japanese Society of Plant Physiologists
Pages 0144
Chloroplast division is driven by both prokaryotic component and eukaryotic component. Our previous study, we isolated an YLMG cDNA overexpressing Arabidopsis with altered chloroplast number and size from the FOX hunting transgenic lines. In this study, we investigated the localization of YLMG protein and analyzed in detail the YLMG-overexpressing plant and -deficient plant. YLMG-deficient plant did not have effect of chloroplast division, and exhibited young leaves of pale-green. Moreover, chloroplast nucleoids of YLMG-deficient plants were larger than those of the wild type. On the other hand, chloroplast nucleoids of YLMG1-overexpressing plants became filamentous and formed a network instead of multiple small nucleoids dispersed throughout the stroma. We discuss the role of AtYLMG1 in the chloroplast division and the morphology of chloroplast nucleoids.
