JMJ704 Protein Regulates Rice Defense Response Against Xanthomonas oryzae pv. oryzaeDecember 16, 2015
Jumonji C (JmjC) domain-containing proteins are a group of functionally conserved histone lysine demethylases in eukaryotes that JmjCs regulate various biological processes in plants. However, their roles in plant biotic stress, especially in rice bacterial blight resistance have been barely studied so far.
A team led by Yuxuan Hou of China National Rice Research Institute found that infection from bacterial blight pathogen Xanthomonas oryzae pv. oryzae (Xoo) induced the transcription of 15 JmjCs, suggesting that these are involved in rice bacterial blight defense.
Further characterization revealed that one of the JMJCs, JMJ704, is a positive regulator of rice bacterial blight resistance as plants with mutated JMJ704 become more susceptible to Xoo than the wild types. JMJ704 suppressed the transcription of negative regulator of rice defense. Results show that JMJ704 may be used as a universal switch controlling multiple genes of the bacterial blight resistance pathway.
For more information, read the full article on BMC Plant Biology.
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