Functional analysis of the genes involved in cell wall network and development

植物细胞壁有助于细胞类型的发育和功能特化。它是由许多不同的多糖、木质素和细胞壁蛋白质组成的高度组织化的复合物。GRP被认为在质膜-细胞壁界面处形成板状结构。然后，我们重点研究了高表达基因OsGRP 2，并分析了其表达模式和突变表型。在生殖生长阶段，野生型水稻植株能正常开花和结籽，而osgrp 2突变体植株约50%的花不开裂，约78%的种子在早期停止发育。这些结果表明OsGRP 2可能在种子和花药发育中起重要作用。

Plant cell walls contribute to the development and the functional specialization of cell types. It highly organized composite of many different polysaccharides, lignins and cell wall proteins. GRPs are thought to form a plate-like structure at the plasma membrane-cell wall interface. Then, we focused on highly expressed gene, OsGRP2, and analyzed the expression patterns and the mutant phenotypes. In the reproductive stage, although wild-type rice plants produced normal flower and seed, in osgrp2 mutants, anther dehiscence did not occur in about 50% flowers and about 78% seeds stopped their development in early stage. These results suggest that OsGRP2 might be important for the development of seed and anther.