Moleucular characterization of novel mechanisms underlying plastid division

淀粉颗粒的大小因植物种类而异，是淀粉工业应用的最重要因素之一。然而，调控SGs大小的分子机制尚不清楚。我们正在研究一种新的水稻突变体ssg4（不合格淀粉粒4），它在胚乳中发育出较大的淀粉粒。我们通过定位克隆方法鉴定了SSG4基因，并对SSG4基因进行了多种鉴定。

The size of starch grains differs depending on the plant species and is one of the most important factors for industrial applications of starch. However, the molecular machinery that regulates the size of SGs is unknown. We are studying a novel rice mutant called ssg4 (substandard starch grain 4) that develops enlarged SGs in the endosperm. We identified the SSG4 gene by map-based cloning and performed various characterization of SSG4 gene.