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Author Caddell D.F., Park C.J., Thomas N.C., Canlas P.E., Ronald P.C.
Title Silencing of the Rice Gene LRR1 Compromises Rice XA21 transcript Accumulation and XA21-Mediated Immunity.
The rice immune receptor XA21 confers resistance to Xanthomonas oryzae pv. oryzae (Xoo), the causal agent of bacterial leaf blight. We previously demonstrated that an auxilin-like protein, XA21 BINDING PROTEIN 21 (XB21), positively regulates resistance to Xoo. To further investigate the function of XB21, we performed a yeast two-hybrid screen. We identified 22 unique XB21 interacting proteins, including LEUCINE-RICH REPEAT PROTEIN 1 (LRR1), which we selected for further analysis. Silencing of LRR1 in the XA21 genetic background (XA21-LRR1Ri) compromises resistance to Xoo compared with control XA21 plants. XA21-LRR1Ri plants have reduced XA21 transcript levels and reduced expression of genes that serve as markers of XA21-mediated activation. Overexpression of LRR1 is insufficient to alter resistance to Xoo in rice lines lacking XA21. Taken together, our results indicate that LRR1 is required for wild-type XA21 transcript expression and XA21-mediated immunity.
Journal Rice (N Y)
Country USA
Volume 10(1)
Pages 23
Year 2017
PubMed ID 28534133
PubMed Central ID 5440417
DOI 10.1186/s12284-017-0162-5
Gene BZIP7 CML24 GLN1;1 LEA24 MTI3A NPC1 PSAK RLCK11 TIFY11D TRXM5 WRKY53 XA21 _ _ _ _ _ _ _ _ _ _ _ _ _
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
Stages in Each Organ
- Muant Lines (Gene)
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -