The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.
Rice WRKY45 Plays a Crucial Role in Benzothiadiazole-Inducible Blast Resistance
Open accessAbstract
Benzothiadiazole (BTH) is a so-called plant activator and protects plants from diseases by activating the salicylic acid (SA) signaling pathway. By microarray screening, we identified BTH- and SA-inducible WRKY transcription factor (TF) genes that were upregulated within 3 h after BTH treatment. Overexpression of one of them, WRKY45, in rice (Oryza sativa) markedly enhanced resistance to rice blast fungus. RNA interference–mediated knockdown of WRKY45 compromised BTH-inducible resistance to blast disease, indicating that it is essential for BTH-induced defense responses. In a transient expression system, WRKY45 activated reporter gene transcription through W-boxes. Epistasis analysis suggested that WRKY45 acts in the SA signaling pathway independently of NH1, a rice ortholog of Arabidopsis thaliana NPR1, which distinguishes WRKY45 from known Arabidopsis WRKY TFs. Two defense-related genes, encoding a glutathione S-transferase and a cytochrome P450, were found to be regulated downstream of WRKY45 but were not regulated by NH1, consistent with the apparent independence of the WRKY45- and NH1-dependent pathways. Defense gene expression in WRKY45-overexpressed rice plants varied with growth conditions, suggesting that some environmental factor(s) acts downstream of WRKY45 transcription. We propose a role for WRKY45 in BTH-induced and SA-mediated defense signaling in rice and its potential utility in improving disease resistance of rice, an importance food resource worldwide.
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Cited by
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Metadata
- Authors
- Shimono, M., Sugano, S., Nakayama, A., Jiang, C.-J., Ono, K., Toki, S., & Takatsuji, H.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2007-06-01
- Volume
- 19
- Issue
- 6
- Pages
- 2064-2076
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2137136072
- Cited by
- 639
- References
- 49
- FWCI
- 29.65
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Shimono, M., Sugano, S., Nakayama, A., Jiang, C.-J., Ono, K., Toki, S., & Takatsuji, H. (2007). Rice WRKY45 Plays a Crucial Role in Benzothiadiazole-Inducible Blast Resistance. The Plant Cell. https://doi.org/10.1105/tpc.106.046250
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