PDF(Pubmed)
Abstract：
Rice yield and disease resistance are two crucial factors in determining the suitability of a gene for agricultural breeding. Decreased grain size1 (DGS1), encoding an RING-type E3 ligase, has been found to have a positive effect on rice yield by regulating rice grain number and 1000-grain weight. However, the role of DGS1 in rice blast resistance is still unknown. In this study, we report that DGS1 enhances disease resistance by improving PTI responses, including stronger ROS burst and MAPK activation, and also increased expression of defense-related genes. Furthermore, DGS1 works in conjunction with ubiquitin conjugating enzyme OsUBC45 as an E2-E3 pair to facilitate the ubiquitin-dependent degradation of OsGSK3 and OsPIP2;1, thereby influencing rice yield and immunity, respectively. Therefore, the DGS1-OsUBC45 module has the potential in facilitating rice agricultural breeding.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s42994-024-00137-9.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s42994-024-00137-9.
摘要：
水稻产量和抗病性是决定基因是否适合农业育种的两个关键因素。晶粒尺寸减少1(DGS1)，编码环型E3连接酶，已发现通过调节水稻粒数和1000粒重对水稻产量有积极影响。然而,DGS1在水稻稻瘟病抗性中的作用尚不清楚。在这项研究中,我们报道DGS1通过改善PTI反应增强抗病性，包括更强的ROS爆发和MAPK激活，也增加了防御相关基因的表达。此外，DGS1与泛素结合酶OsUBC45作为E2-E3对共同作用，促进OsGSK3和OsPIP2的泛素依赖性降解；1，从而影响水稻产量和免疫力，分别。因此,DGS1-OsUBC45模块具有促进水稻农业育种的潜力。
■在线版本包含补充材料，可在10.1007/s42994-024-00137-9获得。
■在线版本包含补充材料，可在10.1007/s42994-024-00137-9获得。
