Abstract
Elicitors are molecules that stimulate defense responses in plants. Previously, an elicitor-encoding gene, named pemG1, was isolated from Magnaporthe grisea. To assess the function of pemG1 in rice (Oryza sativa L. cv. Nipponbare), the gene was cloned under a constitutive maize ubiquitin promoter and introduced into Nipponbare cultivar. The resultant plants showed stable integration and constitutive expression of the pemG1 gene. The expression of defense-related gene for phenylalanine ammonia-lyase was triggered and proline content was also increased in pemG1-expressing plants. The pemG1-expressing plants showed enhanced resistance against rice blast after inoculation with M. grisea spores, suggesting that the pemG1 expression enhances disease resistance in transgenic rice.
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Acknowledgments
We thank Zachary Huang of the Michigan State University for editing assistance and Zhu Haiying at the University of Washington for technical assistance. This work was supported by grants from the Ministry of Science and Technology of China, project numbers 973 (2003CB114204) and 863 (2006AA10A210), and the Beijing Grand Project (D706005040431) as well.
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Communicated by A. Feher.
DQ and JM contributed equally to this paper.
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Qiu, D., Mao, J., Yang, X. et al. Expression of an elicitor-encoding gene from Magnaporthe grisea enhances resistance against blast disease in transgenic rice. Plant Cell Rep 28, 925–933 (2009). https://doi.org/10.1007/s00299-009-0698-y
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DOI: https://doi.org/10.1007/s00299-009-0698-y