Overexpression of rice OsLOL2 gene confers disease resistance in tobacco to Pseudomonas sy

Overexpression of rice OsLOL2 gene confers disease resistance in tobacco to Pseudomonas

syringae pv. Tabaci

Khizar Hayat Bhatti;Chunxiao Xu;Jiahe Wu;Chaozu He

【期刊名称】《自然科学进展（英文版）》 【年(卷),期】2008(018)007

【摘要】LSD1-related proteins of Arabidopsis with LSD1-like zinc finger domains regulate disease resistance and programmed cell death(PCD). We cloned a rice OsLOL2 gene, orthologous to LSDI of Arabidopsis and expressed it in a tobacco plant. Transgenic tobacco lines displayed enhanced disease resistance to a virulent bacterium Pseudomonas syringae pv. tabaci (Pst). RT-PCR analysis showed that overexpression of OsLOL2 in transgenic tobacco lines resulted in upregulation of two pathogenesis-related (PR) protein genes, PR2 and PR5. Our results suggest that overexpression of OsLOL2 in transgenic tobacco enhances the resistance through the induction of PR pro-teins and hypersensitive response-like reaction. 【总页数】6页(807-812)

【关键词】OsLOL2;Zinc finger protein/domain;Hypersensitive response (HR);Pseudomonas syringae pv. tabaci;Disease resistance 【作者】Khizar Hayat Bhatti;Chunxiao Xu;Jiahe Wu;Chaozu He

【作者单位】State Key Laboratory of Plant Genomics, Institute of