APPLICATION OF OSAO GENE FOR IMPROVING RESISTANCE OF RICE AGAINST RICE STRIPE VIRUS， RICE BLACK-STREAKED DWARF VIRUS， OR VIRUS OF SAME FAMILY

The present application discloses an application of OsAO gene for improving rice resistance to rice stripe disease， rice black-streaked dwarf disease or other rice or corn virus diseases caused by homologous virus of rice black-streaked dwarf virus. The present application also provides an application of OsAO gene， the protein encoded by the gene or a recombinant vector containing the gene in regulating plant resistance to rice stripe disease， rice black-streaked dwarf disease or other rice and corn virus diseases caused by homologous virus of rice black-streaked dwarf virus， said protein has the amino acid sequence as shown in Seq 4. The experiment proved that the plant disease resistance is increased in rice overexpressing OsAO gene， indicating that the OsAO protein encoded by this gene plays an important role in rice resistance to rice stripe disease and rice black-streaked dwarf disease.

本申请公开了OsAO基因（OsAO gene）在提升水稻抗水稻条纹叶枯病、水稻黑条矮缩病，或由水稻黑条矮缩病毒同源病毒引发的其他水稻、玉米病毒病中的应用。本申请还提供了OsAO基因、该基因编码的蛋白，或包含该基因的重组载体在调控植物抗水稻条纹叶枯病、水稻黑条矮缩病，或由水稻黑条矮缩病毒同源病毒引发的其他水稻、玉米病毒病中的应用；所述蛋白的氨基酸序列如Seq 4所示。实验证实，过表达OsAO基因的水稻植株抗病性显著增强，表明该基因编码的OsAO蛋白在水稻抵御水稻条纹叶枯病与水稻黑条矮缩病的过程中发挥重要作用。