Abstract
A rice gene, OsBISERK1, encoding a protein belonging to SOMATIC EMBRYOGENESIS RECEPTOR KINASE (SERK) type of leucine-rich repeat receptor-like kinases (LRR-RLKs) was identified. The OsBISERK1 encodes a 624 aa protein with high level of identity to known plant SERKs. OsBISERK1 contains a hydrophobic signal peptide, a leucine zipper, and five leucine-rich repeat motifs in the extracellular domain; the cytoplasmic region carries a proline-rich region and a single transmembrane domain, as well as a conserved intracellular serine/threonine protein kinase domain. OsBISERK1 has a low level of basal expression in leaf tissue. However, expression of OsBISERK1 was induced by treatment with benzothiadiazole (BTH), which is capable of inducing disease resistance in rice, and also up-regulated after inoculation with Magnaporthe grisea in BTH-treated rice seedlings and during incompatible interaction between a blast-resistant rice genotype and M. grisea. The results suggest that OsBISERK1 may be involved in disease resistance responses in rice.
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Abbreviations
- Avr:
-
Avirulence
- BTH:
-
Benzothiadiazole
- LRR:
-
Leucine-rich repeat
- R:
-
Resistance
- RLK:
-
Receptor-like kinase
- SA:
-
Salicylic acid
- SAR:
-
Systemic acquired resistance
- SERK:
-
Somatic embryogenesis receptor kinase
- Ser/Thr:
-
Serine/Threonine
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Acknowledgements
This study was supported by the National Natural Science Foundation of China (grant no. 30170598), the Fund for the New Century Talent Program from MOE of China, and the Excellent Young Teachers Program of MOE to FMS. We thank Dr. Zuhua He (Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science) for the rice near-isogenic lines H8R and H8S, and Mr. Rongyao Chai (Zhejiang Academy of Agricultural Science) for the Magnaporthe grisea isolate 85-14B1.
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The nucleotide sequence of OsBISERK1 has been deposited in GenBank under accession number AY463361.
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Song, D., Li, G., Song, F. et al. Molecular characterization and expression analysis of OsBISERK1, a gene encoding a leucine-rich repeat receptor-like kinase, during disease resistance responses in rice. Mol Biol Rep 35, 275–283 (2008). https://doi.org/10.1007/s11033-007-9080-8
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DOI: https://doi.org/10.1007/s11033-007-9080-8