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Although it is known that rice 14-3-3 family genes are involved in various defense responses, the functions of OsGF14f in response to diseases have not been reported. Here, we showed that the transcription of OsGF14f was significantly induced by leaf blast infection, and the overexpression of Os  GF14f quantitatively enhanced resistance to leaf blast and bacterial blight in rice. Further analysis showed that the expression levels of salicylic acid (SA) pathway-associated genes ( PAL1 , NH1 , PR1a and PR10 ) in the OsGF14f -overexpressing plants, were higher than those in wild-type plants after inoculation with the blast isolate ( Magnaporthe oryzae Barr). In addition, the expression level of OsGF14f was significantly induced after SA treatment, and higher endogenous SA levels were observed in the Os  GF14f -overexpressing plants compared with that in wild-type plants, especially after blast challenge. Taken together, these results suggest that Os  GF14f positively regulates leaf blast and bacterial blight resistance in rice via the SA-dependent signaling pathway.

Overexpression of OsGF14f Enhances Quantitative Leaf Blast and Bacterial Blight Resistance in Rice